Re: [CentOS] selinux policy remnant according to /bin/ls on CentOS 6.0 box

[Tris Hoar]

Jon,

Its worth noting in C6 that you really should avoid using RPM to 
add/remove stuff and stick with yum. Yum now supports rolling back and 
forward package changes, but this is broken if you do things with RPM.

Tris


On 20/09/2011 18:48, Jon Detert wrote:
> I installed CentOS 6.0 on 2 different x86_64 boxen.  Both originally had 
> selinux installed and enabled.  I never touched selinux other than to remove 
> as much of it as I could via rpm -e.  As far as I can tell, here are the 
> remaining packages that have something to do with it:
>
> # rpm -qa | grep -iE 'sel|pol'
> checkpolicy-2.0.22-1.el6.x86_64
> libselinux-2.0.94-2.el6.x86_64
> libsepol-2.0.41-3.el6.x86_64
> polkit-0.96-2.el6_0.1.x86_64
> #
>
> Both boxen have those packages.
>
> However:
>
> 1) box1 still has files in /selinux whereas box2's /selinux is empty;
> 2) ls -l on box1 shows a '.' at the end of file/directory, which means a 
> SELinux security context applies, according to 
> https://fedoraproject.org/wiki/Fedora_11_FAQ#Why_does_ls_show_a_dot_.28..29_or_a_plus_.28.2B.29_at_the_end_on_the_file_modes_for_some_files.3F
>
> Any idea why box1 still seems to have an selinux policy applied, and how to 
> un-apply it?
>
> Thanks,
>
> Jon
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Re: [CentOS] This doesn't make sense

[Ross Walker]

On Sep 21, 2011, at 12:03 AM, Craig White  wrote:

> On Tue, 2011-09-20 at 09:18 -0400, Ross Walker wrote:
>> On Sep 19, 2011, at 7:12 PM, Craig White  wrote:
>> 
>>> On Mon, 2011-09-19 at 18:41 -0400, Ross Walker wrote:
 On Sep 17, 2011, at 7:49 PM, Craig White  wrote:
 
> At some point, security updates for 6.1 will be released and then it
> becomes a matter of deciding to install it based on the evidence that
> security updates have been non-existent all this time.
 
 I'm sorry I don't follow you here?
 
 I'm fairly certain that 6.1 will include both 6.1 security/bug updates AND 
 security/bug updates that have been released up to the beginning of the 
 6.1 release cycle, minus several that where released during the C6.1 
 release cycle. Security updates and bug fixes are intermingled without 
 being able to distinguish one from the other outside of the RPM history.
 
 It's not the security updates that prevent me from moving to 6.0 right 
 now, but those pesky .0 blues.
>>> 
>>> those pesky .0 blues as you call them were clearly there - see other
>>> threads about video issues, etc.
>>> 
>>> I guess the point I was trying to make without being excessively blunt
>>> is that the track record of timely releases for CentOS 6.x (any release)
>>> and the track record of timely security updates (none) should really
>>> cause any one to pause before installing any version of CentOS 6 - even
>>> if 6.1 and all of the current security updates were released tomorrow.
>> 
>> For those systems that are important enough that I need immediate security 
>> updates I buy a RHEL license.
>> 
>> It's those one-off systems behind the firewall that I use CentOS for.
>> 
>> No point in buying an expensive license for an instant messenging server. 
>> IPtables is setup to block all non-application traffic, so the risks are low.
>> 
>> More likely to have systems compromised through the applications they run 
>> then the system utilities themselves.
> 
> I have been using Red Hat and derivations (WBL, CentOS, Fedora) since
> 1998 and the last few years it has been harder and harder to justify
> waiting for everyone to get their act together on a new release.
> 
> My current employer and previous employer both stopped using RHEL/CentOS
> for new installs in favor of Ubuntu and now so have I. It is Linux after
> all and it is reasonable to use it and it works well.

That's great! I hope it works well for you.

We moved from Debian to CentOS/RHEL cause the version upgrades kept breaking 
our environment and always unpredictably.

Unfortunately a version upgrade is often the only way to get a security update 
on Debian I found.

And if I pin a release I didn't get the security updates!


> I don't have to justify the shortcomings of lack of timely security
> updates. 

Yes, with the one big downside that you can't prevent version upgrades without 
sacrificing security.

> I don't have to worry about 'long term support'

Cause there is none.

> I have a simpler path for version upgrades (apt-get dist-upgrade)

True dist-upgrade is nice unless third party software causes it to break in the 
middle. Then, ouch.

> Their documentation is often quite good.

I think that can be said about most Linux distros.

> I certainly appreciate CentOS rescuing me from the drift that was WBL
> some 6 years ago and they generally delivered in a timely fashion.
> Version 6 however made it clear to me that it was time to move on. I'm
> only maintaining the CentOS 5 boxes at this point and at some point,
> they will be replaced.

I view the version 6 release as a special case, a perfect storm of version 
releases; 4.9, 6.0, 5.7, 6.1, and a totally new build process upstream put in 
place for 6.0.

I think CentOS did the right thing by supporting 4 and 5 first. 6 was brand new 
and still buggy.

If it were me making the decisions I might have said, use 6.0 to perfect the 
build environment, but release 6.1 and let all the early adopters whine and 
jump if they want to.

-Ross

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Re: [CentOS] Installation of 6.0

[Lamar Owen]

On Tuesday, September 20, 2011 06:25:45 PM Robert Spangler wrote:
> On Tuesday 20 September 2011 17:39, the following was written:
> >  Do an install without GUI (not
> > necessarily a minimal install, but a server install) and see what comes up
> > on first boot.  Like I said, that's what my RHEL 6.1 box did on first boot.

> I guess it would all depend on what ISO you are using then because I built a 
> new system this weekend using 'CentOS-6.0-x86_64-minimal.iso' and upon reboot 
> I never get anything for first boot.  I had to edit my configuration files by 
> hand to get the system online.

As RHEL doesn't do a minimal install ISO, I installed with the default DVD ISO 
install.  As I said, this is the upstream installation, as a server.  If you're 
using the minimal ISO, then YMMV.  The point simply was that the firstboot 
script does not depend upon the GUI, that is all.

> NetworkManager is a POS and should be dropped.
> Of course this is my opinion and I stand by it.

With RHEL 6.1 running a server (that has remote GUI capabilities, but a 
text-mode console), I have found NetworkManager to be stable, and to make it 
quite a bit easier to configure multiple interfaces on first use.  It simply 
was not that difficult to set up and get persistent networking from the get-go. 
 I used the remote VNC GUI install, and set up networking inside the installer 
for all four NICs, even naming the connections in a reasonable manner.  

Everything just worked and has been rock-solid stable since installation.  
Having the neat little 'blink this NIC's LED' made identification a snap, and 
when set up correctly even if the cards are moved around the settings are 
persistent.  Of course, cloning and going to another box, or complete NIC 
replacement, requires more thought since the MAC addresses of the NIC's are 
used for device naming and assignment, but that's true no matter what way you 
configure your networking, since you have little to no control over NIC 
enumeration order in a deterministic fashion.  A little forethought and it's 
painless even then (I do this frequently with virtual machine clones).

Text mode usage of NM isn't hard once the connections are set up, either.  
Starting and stopping interfaces by connection name rather than device name has 
been quite handy for temporary tunnels/connections and such, as well.  That was 
all done in text mode, too, no GUI required.  GUI only required at present for 
configuring connections; that issue is being worked on.

Upstream may completely deprecate the old way in favor of NM one day; getting 
familiar with how to drive NM is a good idea for the future, regardless of what 
we think about NM.  
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Re: [CentOS] Finding i/o bottleneck

[Nicolas Ross]

> Hi Nicolas,
>
> While this doesn't exactly answer your question, I was wondering what
> scheduler you were using on your GFS2 (Note: I have not used this file
> system before) block. You can find this by issuing 'cat /sys/block/ block device>/queue/scheduler' ?
>
> By default the system uses cfq, which will show up as [cfq] when catting
> the scheduler as I showed above. This is not the most optimal scheduler
> for a webserver. In most cases you'd be better off with deadline or noop.
> Not being familiar with GFS2 myself, I did skim this article, which makes
> me think noop would be the better choice:
>
> http://www.redhat.com/archives/linux-cluster/2010-June/msg00027.html
>
> This could be why you are seeing the processes waiting on I/O.
>

In my case, /sys/block/dm-9/queue/scheduler show : none and 
/sys/block/sdb/queue/scheduler shows "noop anticipatory deadline [cfq]".

Since this is a production cluster, I do not want to make changes to it just 
now. I will ask advice from RHEL support for setting this.

But that seems logical.

In the meen time, I'd still like to find a tool to know what files are 
requeted to the filesystem and what ones are being waited for...

Thanks 

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Re: [CentOS] Installation of 6.0

[Lamar Owen]

On Tuesday, September 20, 2011 09:23:03 PM Robert Nichols wrote:
> That hasn't been my experience, and the RHEL 6 Installation Guide says:
> 
>"The first time you start your Red Hat Enterprise Linux system in run
> level 5 (the graphical run level), the FirstBoot tool appears, which
> guides you through the Red Hat Enterprise Linux configuration."

Use the Source, Luke (especially the chkconfig info for Default-Start):

[root@www ~]# head -16 /etc/init.d/firstboot
#!/bin/bash
### BEGIN INIT INFO
# Provides: firstboot
# Default-Start: 3 5
# Default-Stop: 0 1 2 4 6
# Required-Start:
# Should-Start: $network
# Short-Description: Starts the firstboot configuration program
# Description: Firstboot runs the first time a machine is booted after
#  installation.  It checks for the existance of an
#  /etc/sysconfig/firstboot file.  If the file exists and
#  contains RUN_FIRSTBOOT=NO, firstboot will not run.  Otherwise
#  firstboot will be run.  If /etc/reconfigSys exists or if
#  "reconfig" is provided in the kernel boot arguments,
#  firstboot will run in reconfiguration mode.
### END INIT INFO
[root@www ~]# cat /etc/issue
Red Hat Enterprise Linux Server release 6.1 (Santiago)
Kernel \r on an \m

[root@www ~]#

And it does indeed run on first boot in runlevel 3.  Been there, done that, on 
RHEL6.1.  If firstboot gets installed, it will run in either runlevel, 
regardless of what the documentation says (and I have read the documentation; 
the key criteria is whether firstboot is installed or not, and that doesn't 
happen after a text-mode installation).  Read firstboot's dependencies to see 
what installing firstboot requires; yes, X is required, but runlevel 5 default 
startup is not (this was the default setup when I installed RHEL 6.1 server 
(through a VNC remote GUI); even though I wanted a remote desktop capability 
and thus X and other GUI things installed, there is no local GUI on the server 
console; the server install defaulted to runlevel 3 even with GNOME installed). 
 

Try it.  

While I didn't try a serial console, in theory this should allow a serial 
console installation and use of a server that happens to serve remote desktops.
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Re: [CentOS] sudo wildcards problem: for every argument a *-wildcard? Better solution?

[Sven Aluoor]

On Tue, Sep 20, 2011 at 1:48 PM, John Doe  wrote:
> Tried with -- ?
> Maybe replace the last * with [! ]*

doesn't work. Any other idea?
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[CentOS] (yum) Error: Cannot retrieve repository metadata (repomd.xml)....

[ken]

This error:

Error: Cannot retrieve repository metadata (repomd.xml) for repository: 
debug. Please verify its path and try again

occurs every time I run yum (and is where execution stops).  Why? and/or 
What can be done to fix yum so I can use it again?


tnx.

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Re: [CentOS] (yum) Error: Cannot retrieve repository metadata (repomd.xml)....

[ken]

On 09/21/2011 11:45 AM lists-centos wrote:
> 
>  Original Message 
>> Date: Wednesday, September 21, 2011 11:27:44 AM -0400
>> From: ken 
>> To: CentOS mailing list 
>>
>> This error:
>>
>> Error: Cannot retrieve repository metadata (repomd.xml) for
>> repository:  debug. Please verify its path and try again
>>
>> occurs every time I run yum (and is where execution stops).  Why?
>> and/or  What can be done to fix yum so I can use it again?
>>
> 
> Have you tried:
> 
>yum clean all
> 
> then:
> 
>yum check-update
> 
>   
>   - Richard

yum check-update yields:

http://debuginfo.centos.org/5/i386/repodata/repomd.xml: [Errno 4] 
IOError: 
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: 
debug. Please verify its path and try again

So same problem.




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Re: [CentOS] sudo wildcards problem: for every argument a *-wildcard? Better solution?

[John Doe]

From: Sven Aluoor 

> On Tue, Sep 20, 2011 at 1:48 PM, John Doe  wrote:
>>  Tried with -- ?
>>  Maybe replace the last * with [! ]*
> doesn't work. Any other idea?

I tried the following in /etc/sudoers:
  myuser    ALL=/o*/te*

And cat /opt/test
  #!/bin/bash
  echo "$*"
  touch /root/test

Then:
  $ sudo /opt/test agentsvc --i --u root --sn 1m7command
  agentsvc --i --u root --sn 1m7command
With a /root/test file appearing.
Seems to work fine...

JD
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Re: [CentOS] This doesn't make sense

[Craig White]

On Sep 21, 2011, at 6:41 AM, Ross Walker wrote:

> On Sep 21, 2011, at 12:03 AM, Craig White  wrote:
> 
 
 I guess the point I was trying to make without being excessively blunt
 is that the track record of timely releases for CentOS 6.x (any release)
 and the track record of timely security updates (none) should really
 cause any one to pause before installing any version of CentOS 6 - even
 if 6.1 and all of the current security updates were released tomorrow.
>>> 
>>> For those systems that are important enough that I need immediate security 
>>> updates I buy a RHEL license.
>>> 
>>> It's those one-off systems behind the firewall that I use CentOS for.
>>> 
>>> No point in buying an expensive license for an instant messenging server. 
>>> IPtables is setup to block all non-application traffic, so the risks are 
>>> low.
>>> 
>>> More likely to have systems compromised through the applications they run 
>>> then the system utilities themselves.
>> 
>> I have been using Red Hat and derivations (WBL, CentOS, Fedora) since
>> 1998 and the last few years it has been harder and harder to justify
>> waiting for everyone to get their act together on a new release.
>> 
>> My current employer and previous employer both stopped using RHEL/CentOS
>> for new installs in favor of Ubuntu and now so have I. It is Linux after
>> all and it is reasonable to use it and it works well.
> 
> That's great! I hope it works well for you.
> 
> We moved from Debian to CentOS/RHEL cause the version upgrades kept breaking 
> our environment and always unpredictably.
> 
> Unfortunately a version upgrade is often the only way to get a security 
> update on Debian I found.
> 
> And if I pin a release I didn't get the security updates!
> 
> 
>> I don't have to justify the shortcomings of lack of timely security
>> updates. 
> 
> Yes, with the one big downside that you can't prevent version upgrades 
> without sacrificing security.
> 
>> I don't have to worry about 'long term support'
> 
> Cause there is none.

Ubuntu != Debian

No LTS? - https://wiki.ubuntu.com/LTS

> 
>> I have a simpler path for version upgrades (apt-get dist-upgrade)
> 
> True dist-upgrade is nice unless third party software causes it to break in 
> the middle. Then, ouch.

third party software would in that case break regardless of distribution - the 
rest is just way easier... people who are seeking to in-place upgrade from 
CentOS 5.x to 6.x would love to have this option.

> 
>> Their documentation is often quite good.
> 
> I think that can be said about most Linux distros.
> 
>> I certainly appreciate CentOS rescuing me from the drift that was WBL
>> some 6 years ago and they generally delivered in a timely fashion.
>> Version 6 however made it clear to me that it was time to move on. I'm
>> only maintaining the CentOS 5 boxes at this point and at some point,
>> they will be replaced.
> 
> I view the version 6 release as a special case, a perfect storm of version 
> releases; 4.9, 6.0, 5.7, 6.1, and a totally new build process upstream put in 
> place for 6.0.
> 
> I think CentOS did the right thing by supporting 4 and 5 first. 6 was brand 
> new and still buggy.
> 
> If it were me making the decisions I might have said, use 6.0 to perfect the 
> build environment, but release 6.1 and let all the early adopters whine and 
> jump if they want to.

'the perfect storm' argument seems sort of ridiculous now almost 11 months 
after the initial release of RHEL 6.0 and there isn't any nor has then ever 
been any security updates and you almost get the feeling that RHEL 6.2 will be 
released by the time CentOS gets 6.1 out the door.

More to the core issue though, there has always been simultaneous versions of 
RHEL available and given the current trajectory, there always will be. There 
was a time when a few of the admins of CentOS used to chide users of WBL for 
not being able to get timely security updates from WBL and indicated that this 
should be of primary concern for its users... I guess now, not so much.

But it's not really my intent to debate which distro - just wanted to point out 
that at this point, it requires a leap of faith to install CentOS 6.0 and 
believe that you will get timely security updates because all evidence is to 
the contrary.

Craig
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Re: [CentOS] This doesn't make sense

[Always Learning]

On Wed, 2011-09-21 at 09:50 -0700, Craig White wrote:

> Ubuntu != Debian

http://www.differencebetween.net/technology/difference-between-ubuntu-vs-debian/

> But it's not really my intent to debate which distro - just wanted to
> point out that at this point, it requires a leap of faith to install
> CentOS 6.0 and believe that you will get timely security updates
> because all evidence is to the contrary.

Many Centos installations wishing to upgrade to a newer kernel are
remaining on Centos 5.7 until 6.1 emerges.

-- 
With best regards,

Paul.
England,
EU.


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Re: [CentOS] (yum) Error: Cannot retrieve repository metadata (repomd.xml)....

[ken]

Cool++.  That fixed it.  (Thanks much.)

And now I have an example of something meant to fix problems causing 
problems.  :)


On 09/21/2011 12:05 PM lists-centos wrote:
> 
>  Original Message 
>> Date: Wednesday, September 21, 2011 11:52:11 AM -0400
>> From: ken 
>>
>> On 09/21/2011 11:45 AM lists-centos wrote:
>>>  Original Message 
 Date: Wednesday, September 21, 2011 11:27:44 AM -0400
 From: ken 
 To: CentOS mailing list 

 This error:

 Error: Cannot retrieve repository metadata (repomd.xml) for
 repository:  debug. Please verify its path and try again

 occurs every time I run yum (and is where execution stops).  Why?
 and/or  What can be done to fix yum so I can use it again?

>>> Have you tried:
>>>
>>>yum clean all
>>>
>>> then:
>>>
>>>yum check-update
>>>
>>>   
>>>   - Richard
>> yum check-update yields:
>>
>> http://debuginfo.centos.org/5/i386/repodata/repomd.xml: [Errno 4] 
>> IOError: 
>> Trying other mirror.
>> Error: Cannot retrieve repository metadata (repomd.xml) for
>> repository:  debug. Please verify its path and try again
>>
> 
> disable the debuginfo repository, either on the yum command line, or
> better, in the /etc/yum.repos.d directory. it's not enabled by
> default, and i suspect you don't need it, at least not at this stage.
> 
> 
>   - Richard
> 
> 
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Re: [CentOS] This doesn't make sense

[R - elists]

craig

this is your second troll in two posts.

stop trolling

we are glad for your past life when centos rescued you from whatever.

plus, your past and current usage of centos, migrations to another distro,
and opinions are duly noted "again".

like for the hundredth time

another time will not be necessary

please contribute towards the future of CentOS, or move on.

 - rh

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[CentOS] {SOLVED} Re: PDF Reader/Editor for CentOS 5.7 (32 bit)?

[Lanny Marcus]

On Tue, Sep 20, 2011 at 8:35 AM, Lanny Marcus  wrote:
> I had, in the past, a .pdf reader that also permitted me to fill in
> some information, when I received a .pdf file.
>
> I have KPDF installed, but that seems to only have Reader capability.
>

> Received a contract via email and I would like to add some information
> and send it back via email.
>


The pdfedit package did the trick for me. This is probably "overkill",
but_it_just_works  :-)

Adobe Reader is only a "reader" as I assumed it would be. Some PDF
readers can also fill in forms, do editing, etc., however not Adobe
Reader.

Another solution is to use a free online service, such as
http://www.pdfescape.com/
and upload the file, fill in the form and/or edit the file, and then
download it again.

Possibly this thread will help someone else. Thank you, again, to
everyone who replied and provided information and ideas!   Lanny
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[CentOS] Heads up: ip_nat_ftp module can cause FTP problems in 5.7

[Dennis Jacobfeuerborn]

Hi,
after updating one of my systems to 5.7 FTP connections stopped working. 
After a bit of debugging I found out that the ip_nat_ftp module apparently 
breaks things in 5.7.

So I you update your systems and suddenly FTP starts acting up check if you 
have that module in /etc/sysconfig/iptables-config.

Details: http://bugs.centos.org/view.php?id=5135

Regards,
   Dennis
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[CentOS] Ekiga - camera

[Johan Vermeulen]

dear All,

when first installing CentOs some 6 months ago, I noticed this strange thing 
called Ekiga.

Now, some guys at work use Skype and I heard that's owned by Microsoft.
So enter James.

I bought a webcam, actualy 2, to test Ekiga. Logitech Webcam c210.
I saw this url :http://www.ideasonboard.org/uvc/  on this url 
:http://wiki.centos.org/AdditionalResources/HardwareList/Webcams
and in short : I think I have the driver i need --V4L2-- on my Centos6 machine.

To make sure, I installed everything that came up under

# yum search V4L2
with epel testing enabled.

#dmesg | tail -n15 shows :

usb 2-3: new high speed USB device using ehci_hcd and address 12
usb 2-3: New USB device found, idVendor=046d, idProduct=0819
usb 2-3: New USB device strings: Mfr=0, Product=0, SerialNumber=2
usb 2-3: SerialNumber: CE6AA1D0
usb 2-3: configuration #1 chosen from 1 choice
uvcvideo: Found UVC 1.00 device  (046d:0819)
input: UVC Camera (046d:0819) as 
/devices/pci:00/:00:1d.7/usb2/2-3/2-3:1.0/input/input13

still in Ekiga i get error message ( translated from Dutch) :

an error occurred with video device UVC Camera (046d:0819)
an error occurred when opening the device
blahblahbla
check access rights or driver.

under System - Preferences I can't find anything configurable ( is that even 
English ?)

Can anyone help me configure something somewhere  or whatever is needed ?

Thanks a million in advance

James


Opensource Software is the future.

-- 
Johan Vermeulen
IT-medewerker
Caw De Kempen
johan.vermeu...@cawdekempen.be
0479.82.01.41

Opensource Software is the future.

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Re: [CentOS] Ekiga - camera

[Frank Cox]

On Wed, 21 Sep 2011 19:55:45 +0200
Johan Vermeulen wrote:

> Can anyone help me configure something somewhere  or whatever is needed ?

Try installing cheese and see if it can find your camera.   That doesn't
directly get ekiga working but it will tell you if Centos 6 actually supports
your camera.

-- 
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www.creekfm.com - FIFTY THOUSAND WATTS of POW WOW POWER!
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Re: [CentOS] Ekiga - camera

[Always Learning]

On Wed, 2011-09-21 at 12:05 -0600, Frank Cox wrote:

> Try installing cheese .

Where from ? Yum does not know it.

Thank you,

Paul.


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Re: [CentOS] Ekiga - camera

[b.j. mcclure]

On Wed, 2011-09-21 at 19:08 +0100, Always Learning wrote:
> On Wed, 2011-09-21 at 12:05 -0600, Frank Cox wrote:
> 
> > Try installing cheese .
> 
> Where from ? Yum does not know it.
> 
> Thank you,
> 
> Paul.
> 

Really?  It's on 6.0 at least.  Is OP on 5.x?

B.J.

]$ su
Password: 
[root@office2 bmcclure]# yum search cheese
Configuration file /etc/yum/pluginconf.d/rhnplugin.conf not found
Unable to find configuration file for plugin rhnplugin
Loaded plugins: fastestmirror, priorities, protectbase,
refresh-packagekit
Loading mirror speeds from cached hostfile
 * base: mirror.net.cen.ct.gov
 * extras: mirrors.seas.harvard.edu
 * updates: centos.omnispring.com
0 packages excluded due to repository priority protections
0 packages excluded due to repository protections
=== Matched: cheese

cheese.x86_64 : Application for taking pictures and movies from a webcam
pygpgme.x86_64 : Python module for working with OpenPGP messages
python-decoratortools.noarch : Use class and function decorators -- even
in
 : Python 2.3
python-turbojson.noarch : Python template plugin that supports json


CentOS Linux release 6.0 (Final)

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Re: [CentOS] Ekiga - camera

[Always Learning]

On Wed, 2011-09-21 at 14:17 -0400, b.j. mcclure wrote:

> > 
> > Where from ? Yum does not know it.

> Really?  It's on 6.0 at least.  Is OP on 5.x?

I'm on 5.7





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Re: [CentOS] Ekiga - camera

[Phil Schaffner]

Always Learning wrote on 09/21/2011 02:33 PM:
...
> I'm on 5.7

But the OP is on 6.

Phil
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Re: [CentOS] Ekiga - camera

[Always Learning]

On Wed, 2011-09-21 at 14:37 -0400, Phil Schaffner wrote:
> Always Learning wrote on 09/21/2011 02:33 PM:
> ...
> > I'm on 5.7
> 
> But the OP is on 6.

I'm on 5.7 and I have had similar problems. If this Cheese thing can
helpfully identify why two web cams, gathering dust, are not recognised
in Ekiga, I shall be happier.


-- 
With best regards,

Paul.
England,
EU.


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Re: [CentOS] {SOLVED} Re: PDF Reader/Editor for CentOS 5.7 (32 bit)?

[m . roth]

Lanny Marcus wrote:
> On Tue, Sep 20, 2011 at 8:35 AM, Lanny Marcus 
> wrote:
>> I had, in the past, a .pdf reader that also permitted me to fill in
>> some information, when I received a .pdf file.

> Adobe Reader is only a "reader" as I assumed it would be. Some PDF
> readers can also fill in forms, do editing, etc., however not Adobe
> Reader.

I don't know what's wrong, other than the possibility that wherever you
got the form, they did *not* make it so that you can fill it out on your
system. Note that *every* instance that I've done that, acroread tells me
that I *must* print it, and that I *cannot* save it filled out.

That, of course, is solved by the pdfprinter driver for CUPS, though that
leaves me with a filled out, but un-re-editable document.

And yes, I have a bunch of purchase requests that I filled out in the last
couple of years that were like this, and yes, I used acroread.

  mark

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Re: [CentOS] Ekiga - camera

[m . roth]

Johan Vermeulen wrote:
>
> when first installing CentOs some 6 months ago, I noticed this strange
> thing called Ekiga.

> # yum search V4L2

That's video4linux, btw.

> with epel testing enabled.
>
> #dmesg | tail -n15 shows :

> still in Ekiga i get error message ( translated from Dutch) :
>
> an error occurred with video device UVC Camera (046d:0819)
> an error occurred when opening the device
> blahblahbla
> check access rights or driver.
>
> under System - Preferences I can't find anything configurable ( is that
> even English ?)

Perfectly good English. And it did tell you the problem: access rights.
Look at the driver - it might be /dev/video or /dev/video0 - and check the
permissions. It may be installed, but only root has rw privileges. If
that's the case, one option would be to make it owned by root, but group
motion, and add yourself to that group.

 mark

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Re: [CentOS] Ekiga - camera

[Keith Roberts]

On Wed, 21 Sep 2011, Johan Vermeulen wrote:

> To: CentOS mailing list 
> From: Johan Vermeulen 
> Subject: [CentOS] Ekiga - camera
> 
>
>
> dear All,
>
> when first installing CentOs some 6 months ago, I noticed 
> this strange thing called Ekiga.
>
> Now, some guys at work use Skype and I heard that's owned 
> by Microsoft. So enter James.
>
> I bought a webcam, actualy 2, to test Ekiga. Logitech 
> Webcam c210. I saw this url 
> :http://www.ideasonboard.org/uvc/ on this url 
> :http://wiki.centos.org/AdditionalResources/HardwareList/Webcams 
> and in short : I think I have the driver i need --V4L2-- 
> on my Centos6 machine.

Hello Johan.

I've done some looking into this before, and if you checkout 
my Linux Compatible Webcams Guide you will see that if you 
use a Logitec c210 which is a UVC camera - and the driver 
for UVC devices is already built into the newer Linux 
kernel.

http://forums.fedoraforum.org/showthread.php?t=240812

"However, the current Linux 2.6.26 kernel and newer includes 
the Linux UVC driver natively. So you will not need to 
download and compile any driver module source if you 
purchase a UVC compatible webcam. It should be Plug-n-Play 
like any other USB device"

It looks Like RH may have backported the UVC drivers into 
the kernel, as I can use my Logitec webcam OK under Skype :)

[root@karsites ~]# rpm -qv kernel
kernel-2.6.18-238.5.1.el5
kernel-2.6.18-238.9.1.el5
kernel-2.6.18-194.32.1.el5
kernel-2.6.18-238.12.1.el5
kernel-2.6.18-238.19.1.el5

[root@karsites ~]# lsusb
Bus 001 Device 006: ID 046d:0802 Logitech, Inc. Webcam C200
Bus 001 Device 001: ID :
Bus 002 Device 001: ID :
Bus 003 Device 001: ID :

So I doubt whether it's a Linux driver problem!

Kind Regards,

Keith

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Re: [CentOS] Ekiga - camera

[Keith Roberts]

On Wed, 21 Sep 2011, Always Learning wrote:

> To: CentOS mailing list 
> From: Always Learning 
> Subject: Re: [CentOS] Ekiga - camera
> 
>
> On Wed, 2011-09-21 at 14:37 -0400, Phil Schaffner wrote:
>> Always Learning wrote on 09/21/2011 02:33 PM:
>> ...
>>> I'm on 5.7
>>
>> But the OP is on 6.
>
> I'm on 5.7 and I have had similar problems. If this Cheese thing can
> helpfully identify why two web cams, gathering dust, are not recognised
> in Ekiga, I shall be happier.

Are they are UVC compliant devices?

Regards,

Keith

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Re: [CentOS] Ekiga - camera

[Johan Vermeulen]

  hello Mark and Keith,

I also think a have the driver,  because of what dmesg shows.

mark could be right, I had a similar issue with a firewire camera, Kino 
and /dev/raw1394.

So a did this :


-bash-4.1# groupadd motion
-bash-4.1# chgrp motion video0
-bash-4.1# usermod -G motion james
-bash-4.1# id james
uid=500(james) gid=500(james) groepen=500(james),503(motion)
-bash-4.1# ls -la video0
crw-rw+ 1 root motion 81, 0 sep 21 21:28 video0
-bash-4.1#

hope this is right.

But still same error message, even after reboot ( didn't want to but 
battery went dead )

So still no video...

greetings, James


Op 21-09-11 20:54, m.r...@5-cent.us schreef:
> Johan Vermeulen wrote:
>> when first installing CentOs some 6 months ago, I noticed this strange
>> thing called Ekiga.
> 
>> # yum search V4L2
> That's video4linux, btw.
>
>> with epel testing enabled.
>>
>> #dmesg | tail -n15 shows :
> 
>> still in Ekiga i get error message ( translated from Dutch) :
>>
>> an error occurred with video device UVC Camera (046d:0819)
>> an error occurred when opening the device
>> blahblahbla
>> check access rights or driver.
>>
>> under System - Preferences I can't find anything configurable ( is that
>> even English ?)
> Perfectly good English. And it did tell you the problem: access rights.
> Look at the driver - it might be /dev/video or /dev/video0 - and check the
> permissions. It may be installed, but only root has rw privileges. If
> that's the case, one option would be to make it owned by root, but group
> motion, and add yourself to that group.
>
>   mark
>
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Re: [CentOS] Ekiga - camera

[Johan Vermeulen]

  I kind of did the same for /dev/v4l

-bash-4.1# ls -la v4l/
totaal 0
drwxrwx---.  4 root motion   80 sep 21 21:28 .
drwxrwxrwx. 21 root root   3820 sep 21 21:28 ..
drwxrwx---.  2 root motion   60 sep 21 21:28 by-id
drwxrwx---.  2 root motion   60 sep 21 21:28 by-path
-bash-4.1#

still no luck. error message persists.

Op 21-09-11 21:40, Johan Vermeulen schreef:
>hello Mark and Keith,
>
> I also think a have the driver,  because of what dmesg shows.
>
> mark could be right, I had a similar issue with a firewire camera, Kino
> and /dev/raw1394.
>
> So a did this :
>
>
> -bash-4.1# groupadd motion
> -bash-4.1# chgrp motion video0
> -bash-4.1# usermod -G motion james
> -bash-4.1# id james
> uid=500(james) gid=500(james) groepen=500(james),503(motion)
> -bash-4.1# ls -la video0
> crw-rw+ 1 root motion 81, 0 sep 21 21:28 video0
> -bash-4.1#
>
> hope this is right.
>
> But still same error message, even after reboot ( didn't want to but
> battery went dead )
>
> So still no video...
>
> greetings, James
>
>
> Op 21-09-11 20:54, m.r...@5-cent.us schreef:
>> Johan Vermeulen wrote:
>>> when first installing CentOs some 6 months ago, I noticed this strange
>>> thing called Ekiga.
>> 
>>> # yum search V4L2
>> That's video4linux, btw.
>>
>>> with epel testing enabled.
>>>
>>> #dmesg | tail -n15 shows :
>> 
>>> still in Ekiga i get error message ( translated from Dutch) :
>>>
>>> an error occurred with video device UVC Camera (046d:0819)
>>> an error occurred when opening the device
>>> blahblahbla
>>> check access rights or driver.
>>>
>>> under System - Preferences I can't find anything configurable ( is that
>>> even English ?)
>> Perfectly good English. And it did tell you the problem: access rights.
>> Look at the driver - it might be /dev/video or /dev/video0 - and check the
>> permissions. It may be installed, but only root has rw privileges. If
>> that's the case, one option would be to make it owned by root, but group
>> motion, and add yourself to that group.
>>
>>mark
>>
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[CentOS] Broadcom Failure: Chg CentOS 6.0 to 5.7

[Michael D. Berger]

After following various advice I received on other
threads to get the Broadcom wlan0 on my laptop to work
I have still not succeeded.  Therefore I am changing
from CentOS 6.0 to 5.7 . I think that I'll first try
the fix at:
   http://elrepo.org/tiki/wl-kmod
on 5.7 .

Anyone have a reason why I should proceed differently?

Thanks,
Mike.

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Re: [CentOS] Safely Remove Disk on LVM

[Theo Band]

On 09/19/2011 10:59 AM, Muhammad Panji wrote:
> On Fri, Sep 16, 2011 at 5:57 PM, Theo Band  > wrote:
>
> On 09/16/2011 05:03 AM, Muhammad Panji wrote:
> > Dear All,
> > I plan to replace an error disk that is part of an LV. from LVM
> how-to
> > it could be done with using pvmove to move all PE from old disk
> to new
> > disk.But the howto also said that pvmove is slow. Anyone has
> > experience using pvmove on 2TB disk?
> >
> > Is it possible to make all PE on the old disk empty so I don't
> have to
> > do pvmove (assuming that I can make a free space >= 2TB). Thank
> you in
> > advance
> > Regards
> Yes it is slow, but it works. You can condider to remove some (unused)
> LVM that have extends on the physical disk. That speeds it up, as the
> extends are marked free again. How many disks do you now have in your
> volume group? If only one, then simply try to copy the entire disk to
> another one (dd/ddrescue/clonezilla). If the disk has bad sectors,
> then
> the pvmove will most likely fail anyhow.
>
> Hi Theo,
> thank you for the reply. I have four disk in one LV. so yesterday I
> already done pvmove the 2TB disk and it took time about 20 hours. I
> think the disk is just start to fail and most part of the disk is
> still good, that's why the pvmove process didn't take time that long.
> Regards,

Four disk in a volume group? I would never do that. You increase the
chance that something breaks with a factor 4 if every disk has the same
probability of failing. If they are the same size, you better create a
raid5 for instance. You loose one disk of capacity to recover from a
single disk failure in the array. I think it's worth it, but it depends
on the data that you store on it of course. In your case, if a disk
fails dramatically, you need to start the volume group with a missing
disk. This will create a big hole (zeros or IO errors) in the place were
the disk PE should have been in your logical volume. It's just guessing
what happens to the file system that you have created on top of it...

Theo
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Re: [CentOS] Ekiga - camera

[ken]

On 09/21/2011 03:34 PM Keith Roberts wrote:
> On Wed, 21 Sep 2011, Johan Vermeulen wrote:
> 
>> To: CentOS mailing list 
>> From: Johan Vermeulen 
>> Subject: [CentOS] Ekiga - camera
>>
>>
>>
>> dear All,
>>
>> when first installing CentOs some 6 months ago, I noticed 
>> this strange thing called Ekiga.
>>
>> Now, some guys at work use Skype and I heard that's owned 
>> by Microsoft. So enter James.
>>
>> I bought a webcam, actualy 2, to test Ekiga. Logitech 
>> Webcam c210. I saw this url 
>> :http://www.ideasonboard.org/uvc/ on this url 
>> :http://wiki.centos.org/AdditionalResources/HardwareList/Webcams 
>> and in short : I think I have the driver i need --V4L2-- 
>> on my Centos6 machine.
> 
> 
> 
> "However, the current Linux 2.6.26 kernel and newer includes 
> the Linux UVC driver natively. So you will not need to 
> download and compile any driver module source if you 
> purchase a UVC compatible webcam. It should be Plug-n-Play 
> like any other USB device"
> 
> 

Back when I was handsome I used a webcam.  It was a long time ago but I 
remember one test was to do "cat /dev/video0"... or some other device 
(if dmesg and /var/log/messages don't say).  If you selected the correct 
device and had the permissions (you could try the command as a regular 
user or as root), that command would spew out (garbage) characters to 
the terminal while the cam was moving and seem to pause when the cam 
wasn't moving and pointed at nothing moving.  Ctrl-C or Ctrl-D gave the 
shell prompt back (as we'd expect).

hth,
k.
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Re: [CentOS] Ekiga - camera

[Christopher Chan]

On Thursday, September 22, 2011 01:55 AM, Johan Vermeulen wrote:
>
>
> dear All,
>
> when first installing CentOs some 6 months ago, I noticed this strange thing 
> called Ekiga.

You need an ILS server/service or a sip server to make ekiga useful. ILS 
is going/has gone the way of the dodo...so any sip client that supports 
video should do. If ekiga does not work, try others.
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Re: [CentOS] This doesn't make sense

[Christopher Chan]

On Thursday, September 22, 2011 12:50 AM, Craig White wrote:

>>> I don't have to worry about 'long term support'
>>
>> Cause there is none.
> 
> Ubuntu != Debian
>
> No LTS? - https://wiki.ubuntu.com/LTS
> 

For Ubuntu's definition of 'support'. It is in no way comparable to what 
you can get in previous Centos releases. It is 'comparable' to CEntos 6 
- none
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Re: [CentOS] This doesn't make sense

[Les Mikesell]

On Wed, Sep 21, 2011 at 5:46 PM, Christopher Chan
 wrote:
>>
>> No LTS? - https://wiki.ubuntu.com/LTS
>> 
>
> For Ubuntu's definition of 'support'. It is in no way comparable to what
> you can get in previous Centos releases. It is 'comparable' to CEntos 6
> - none

Errr, what?  Apt-get is still happily getting updates, and without any
fiddling around with temporary changes to recommended-but-not-default
repositories.

-- 
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[CentOS] CentOS 5.7: disable automatic updates

[Michael D. Berger]

In CentOS 5.7, how do I disable automatic
update checking?

Thanks,
Mike.

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Re: [CentOS] CentOS 5.7: disable automatic updates

[Frank Cox]

On Wed, 21 Sep 2011 23:55:46 + (UTC)
Michael D. Berger wrote:

> In CentOS 5.7, how do I disable automatic
> update checking?

turn off the yumupdatesd service.

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Re: [CentOS] This doesn't make sense

[tdukes]

As the OP, I will say this. I blew out my CentOS 6.0 installation having installed SL kernel and firmware packages. I thought I would install SL 6.1 to see how it would be since it was a new install with no real value as far as customizations.  It wouldn't run after the installation, boot up and crap out. And no, I didn't burn the DVDs on the bad DVD burner.My thinking was how could the SL people be better than the CentOS people. They aren't for reasons unbeknown to me.While I'm in the process of changing ISPs, I'm stuck hotspotting my (home) internet through my iPhone. Hopefully, I will be back by the weekend.I will be sticking with CentOS with a few mods from SL. I don't know, but I would wager RH is having 6.1 problems.Thanks for ALL you do!!Eddie
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Re: [CentOS] This doesn't make sense

[Christopher Chan]

On Thursday, September 22, 2011 07:00 AM, Les Mikesell wrote:
> On Wed, Sep 21, 2011 at 5:46 PM, Christopher Chan
>   wrote:
>>>
>>> No LTS? - https://wiki.ubuntu.com/LTS
>>> 
>>
>> For Ubuntu's definition of 'support'. It is in no way comparable to what
>> you can get in previous Centos releases. It is 'comparable' to CEntos 6
>> - none
>
> Errr, what?  Apt-get is still happily getting updates, and without any
> fiddling around with temporary changes to recommended-but-not-default
> repositories.
>

Errr, like not fixing functional breakage even though the package is in 
a current LTS release and even though patches that work were provided by 
others. eg: Hardy -> pidgin which lost YM capabilities.

Backports like the big ones RH did for C5 do not exist in any Ubuntu 
release.

So please, do not ever compare Ubuntu LTS with RHEL. Ubuntu LTS is a 
joke. Of course, currently Centos 6 is a joke too but the landscape is 
probably going to change very soon.
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[CentOS] Centos 6 First Install, gripes - cool things- tips/help

[Bob Hoffman]

Finally got a new server the other day.
You know I had to try out centos 6 with this one.

dual quad cores, 24 gb ram (12 for each cpu) 6 working drives bays.

My first big surprise was the partition system with anaconda. It is a 
lot different than the centos 5.x version.
I am sure it is a bug that it has options for hot spares but does not 
allow it to be ungreyed out.
I think in the end I will have to manually go into command line and take 
the third drive of the mirror and turn it into a hot spare.

Second issue, which quite shocked me, was the loss of the ability to 
clone a drive during the install. In 5.x I would make all the raid 
partitions, LVM/groups, boots, etc. on one drive, then simply hit 
'clone' to make the second (and third spare) in the array.
This time I had to manually do each and every drive, exactly as the 
other, partition by partition. Not fun if you are reinstalling a lot to 
test configs and to get it right.


Virtual Machines sound cool and this will be my first attempt. That 
nasty selinux 'silently' is keeping me from putting the images on the 
second raid 1 array I have...sigh. Initial install of virt machine stuff 
popped me right into the command line, even though red hat specifically 
says the graphic stuff has more options.
Second install used all the graphic desktop stuff to make sure I had the 
option (first time ever saw linux desktop, sweet).
Interesting that the initial settings of my host had absolutely no 
network access at all. I had to manually change the network scripts to 
enable them...each time I reinstalled to play around. (host needs access 
for ssh and such).

Surprised to find a large (75%?) of packages relating to virtual 
machines not selected in the packages during install...odd. Some might 
be dependencies, but some obviously were not installed the first few 
times until I caught that.
qemu not selected during install of virt machine?

Still working on getting the raids to work right (first time adding a 
second 'non system' raid 1) with the whole 'no hot spare' and 3 drives 
as one. Sure is hard to tell it all apart in the graphic desktop since 
all the drives are named exactly the same.
Learned to never touch the lvm manager graphically, it just seems to not 
understand the raid setups and wants to reinitialize or destroy 
everything. I'll stick to command line for that.

Best part...using an ipmi card with kvm so I can sit on my windows and 
do pics/vids of the process for a nice detailed website how to...all the 
way from bios to deploy...kvm, web, guests, etc...should be fun...should be.

Luckily for me, Kernel based virtual machine guys decided to use the 
abbreviation KVM instead of KbVM. There are about 10 billion pages on 
kvm switches and tons of other junk, as well as books. Kbvm? Not so 
much. If I could read Danish (or dutch or german?) I could buy the 
single book in existence to help with KbVM. Sigh. Should be an experience.

I will be posting a lot of stuff on a private forum (well, open to 
public, but no registrations) about what worked for a stand alone 
server, hosting multiple websites in a KVM environment... Will even try 
to use SElinux all the way also.

If you want access to post things in that forum, send me an email and I 
will gladly add you.

Nothing more fun than boxes of pizza, coke, and mad google searches when 
a new version of redhat/centos comes out


see ya in the funny papers.
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[CentOS] CentOS 5.7: stop level 3 beep

[Michael D. Berger]

In my CentOS 5.7 laptop, I boot to level 3, and do startx
to get KDE if I need it.  I stopped the beeps at level 5,
but how do I stop them at level 3?

Thanks,
Mike.

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Re: [CentOS] Centos 6 First Install, gripes - cool things- tips/help

[Michel Donais]

> Finally got a new server the other day.
> You know I had to try out centos 6 with this one.

Can you give me the specs of your server


---
Michel Donais
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[CentOS] w3pw install

[Tim Dunphy]

hey list,

 I'm attempting to install the w3pw password wallet on centos 5.6 


 http://w3pw.sourceforge.net/

 The interface works well enough, but for the life of me I can't find the 
default password for setup or the file in which this is set. Does anyone happen 
to know?

thanks!
tim
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[CentOS] How to update CentOS 5.4 to 5.6?

[Aleksey Tsalolikhin]

Is there a way to update a CentOS 5.4 server to 5.6 (but not 5.7)?

"yum update" takes me all the way up to 5.7.

Best,
-at
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[CentOS] Installing yesterday's CentOS (or how to install the patch/package set from 3 weeks ago)

[Aleksey Tsalolikhin]

Hello,

Let's say your operating policy is "no patch updates without testing
first in the test environment".   Let's say it takes you 3 weeks to
test.  Over the course of the 3 weeks, the repo changes (new
packages added, old removed).

Is there a way to "freeze" a set of packages so that when I
run "yum update" on a Prod server it'll get the same package
and patch set as the Test server did 3 weeks ago?

It's been suggested to maintain a local mirror, and take rsync
snapshots of it daily, so then you can point the end node to a
particular repository.

What other solutions are there?

Best,
-at
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Re: [CentOS] Ekiga - camera

[Always Learning]

On Thu, 2011-09-22 at 06:43 +0800, Christopher Chan wrote:

> You need an ILS server/service or a sip server to make ekiga useful. ILS 
> is going/has gone the way of the dodo...so any sip client that supports 
> video should do. If ekiga does not work, try others.

Ekiga works well on Centos 5.6 with a SIP server.


-- 
With best regards,

Paul.
England,
EU.


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[CentOS] Wiki CR Repo Link Defective

[Always Learning]

On http://wiki.centos.org/AdditionalResources/Repositories/CR

the link to a copy of 64 bit CR repo is not working.

The link is:

http://mirror.centos.org/centos/5.6/cr/x86_64/RPMS/centos-release-cr-5-6.el5.centos.1.x86_64.rpm

and the error message is (obtained from trying two distinctly different
IPs on two distinctively different ISP networks):

"Not Found
"The requested
"URL /centos/5.6/cr/x86_64/RPMS/centos-release-cr-5-6.el5.centos.1.x86_64.rpm 
was not found on this server.

"Apache/2.2.3 (CentOS) Server at mirror.centos.org Port 80!

Centos server IP = 91.210.106.98.



Regards,

Paul.
England
EU.


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Re: [CentOS] Wiki CR Repo Link Defective

[John R Pierce]

On 09/21/11 8:42 PM, Always Learning wrote:
> Onhttp://wiki.centos.org/AdditionalResources/Repositories/CR
>
> the link to a copy of 64 bit CR repo is not working.
>
> The link is:
>
> http://mirror.centos.org/centos/5.6/cr/x86_64/RPMS/centos-release-cr-5-6.el5.centos.1.x86_64.rpm

5.7 has been released, obsoleting the 5.6/cr/



-- 
john r pierceN 37, W 122
santa cruz ca mid-left coast

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[CentOS] Wiki CR Repo Link Defective

[R P Herrold]

On Wed, 21 Sep 2011, John R Pierce wrote:

> On 09/21/11 8:42 PM, Always Learning wrote:

> 5.7 has been released, obsoleting the 5.6/cr/

John or Always

I am in a low bandwidth environment, and so cannot do this 
myself

Plesae file a bug at: http://bugs.centos.org/ so that the 
release process checklist for point releases includes a formal 
item to take steps to prevent this repository state

Thank you

-- Russ herrold
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Re: [CentOS] Wiki CR Repo Link Defective

[John R Pierce]

On 09/21/11 11:21 PM, R P Herrold wrote:
> On Wed, 21 Sep 2011, John R Pierce wrote:
>> >  5.7 has been released, obsoleting the 5.6/cr/
>
> Plesae file a bug at:http://bugs.centos.org/  so that the
> release process checklist for point releases includes a formal
> item to take steps to prevent this repository state

What state should it be in?  should that file be referenced as

http://mirror.centos.org/centos/5/cr/x86_64/RPMS/centos-release-cr.el5.centos.1.x86_64.rpm
  
?

or should there be a new

http://mirror.centos.org/centos/5.7/cr/x86_64/RPMS/centos-release-cr-5-7.el5.centos.1.x86_64.rpm

generated with the new release ?

I'm not sure I can fully think out all the ramifications of this.

-- 
john r pierceN 37, W 122
santa cruz ca mid-left coast

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