Re: How do I post to the btrfs mailing list?

2020-12-11 Thread Sreyan Chakravarty
On Fri, Dec 11, 2020 at 5:09 AM Tim via users
 wrote:
> Try doing the same thing here, you're supposed to avoid posting HTML on
> this mailing list.  i.e. Use plain text emails.

Will do.

-- 
Regards,
Sreyan Chakravarty
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Re: F33 , System wide failure

2020-12-11 Thread Kostas Sfakiotakis


Στις 11/12/20 8:51 π.μ., ο/η Chris Murphy έγραψε:

On Thu, Dec 10, 2020 at 1:59 PM Kostas Sfakiotakis
 wrote:


It would seem that F33 was failing to boot due to a damaged  var
partition ( /dev/mapper/F31-F31Var ) and it was asking me to run e2fsck
manually .


The question is can really a damaged var partition prevent the system
from booting  ( any explanation on that would be greatly appreciated ) .

If it can't mount, it does seem like systemd will indefinitely wait
for it to appear, unless that mountpoint has 'nofail' option in fstab.
The problem with that is, it's pretty much a required directory. Same
for /etc.


Well it does seem that , such was the case . From the journal
it would seem that it was indeed trying to mount the partition ( /var
resides in a seperate LVM partition /dev/mapper/F31-F31Var ) but
it was failing and it was asking me to run e2fsck manually . OOOppsss
well that last part ( of /var being a mandatory directory . possibly for 
/var/log ?? )

was what i was afraid off .


Although the system booted "normally" i got a message that the "Linux
Kernel Module Init Script" failed to start .

Can someone explain to me in English what that thing is ( Am not sure i
know the guy ) ???

Not sure. You got this message where/when?


I might have a screenshot for it . It popped up during the boot process 
towards the

end .
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Re: btrfs swapfile - Not enough swap space for hibernation.

2020-12-11 Thread Sreyan Chakravarty
On Fri, Dec 11, 2020 at 12:32 AM Chris Murphy  wrote:
>
> If the journal doesn't have more information about why it says this,
> and if the error is reported in the journal by systemd-logind, enable
> debug logging for logind and reproduce and the try to figure out why
> logind is complaining:
>
> https://github.com/systemd/systemd/issues/15354#issuecomment-610385478
>

Yes.

I have finally found out the reason why logind is complaining, thanks to you.

Dec 11 18:45:05 localhost.HPNotebook systemd-logind[1222]: Failed to
open swap file /var/swap/fedora.swap to determine on-disk offset:
Permission denied
Dec 11 18:45:05 localhost.HPNotebook systemd-logind[1222]: Sent
message type=method_return sender=n/a destination=:1.57 path=n/a
interface=n/a member=n/a cookie=130 reply_cookie=49 signature=s
error-name=n/a error-message=n/a
Dec 11 18:45:05 localhost.HPNotebook systemd-logind[1222]: Got message
type=method_call sender=:1.57 destination=org.freedesktop.login1
path=/org/freedesktop/login1 interface=org.freedesktop.login1.Manager
member=CanHybridSleep cookie=50 reply_cookie=0 signature=n/a
error-name=n/a error-message=n/a
Dec 11 18:45:05 localhost.HPNotebook systemd-logind[1222]: Sleep mode
"disk" is supported by the kernel.
Dec 11 18:45:05 localhost.HPNotebook systemd-logind[1222]: /dev/zram0:
ignoring zram swap


My permissions are as follows:

Permissions of /var/swap directory:
drwxr-xr-x. 1 root root   22 Dec 11 15:06 swap

Permissions of the actual swap file:
-rw---. 1 root root 9663676416 Dec 11 15:09 fedora.swap

Permissions of the swap subvolume:
drwxr-xr-x. 1 root root   22 Dec 11 15:06 swap

Mount options:
UUID=7d9dbe1b-dea6-4141-807b-026325123ad8 /var/swap
   btrfs   subvol=swap,rw,noattime,nosuid,x-systemd.device-timeout=0 0
0
/var/swap/fedora.swap none swap
defaults,x-systemd.requires-mounts-for=/var/swap 0 2

Output of /proc/swaps:
Filename Type Size Used Priority
/dev/zram0  partition 4020220 0 100
/var/swap/fedora.swap   file 9437180 0 -2


The only reason I can fathom is that systemd-logind is unable to
access the directory /var/swap. IIRC, you were the one who suggested I
mount in that directory.

Not blaming you, but the question is what do I do now ?

The bug that you have linked to is about /home not /var.

So where should I keep the swap for logind to access it without any problems ?

> There is a possibility there isn't enough contiguous space in the
> swapfile for the hibernation image. i.e. when you fallocate the
> swapfile, it may be comprised of one or even dozens of separate
> extents and if one of them isn't big enough for hibernation entry then
> it'll always fail.
>
> As far as I'm aware there isn't a way to ask fallocate for a minimum
> extent size. I've sometimes had to fallocate multiple files in a row
> to get a swapfile with few fragments and then delete the rest.
>

I don't think that is possible since the file was created with dd, not
fallocate.
Also the +C attribute was used.

> OK you're confused. You do not need both chattr +C on the file and the
> nodatacow option. You only need one of those. You should realize that
> the nodatacow option applies file system wide. It's non-obvious but
> really only the VFS mount options can apply separately to bind mounts.
> And on Fedora, since subvolumes are mounted to specific mounts points
> and are thus effectively bind mounts behind the scenes, it seems like
> you can apply some mount options to specific subvolumes as if they are
> separate file systems. But that's not what's going on, they're just
> bind mounts. So you can do atime for one mount point, noatime for
> another. And same for ro or rw. Those are VFS options. The Btrfs mount
> options apply file system wide, that includes nodatacow, compress, and
> so on.
>
> Further problem now that you're using nodatacow is that you have a
> bunch of nodatacow files that have been created in the meantime. And
> those do *not* have chattr +C so you have no easy way to find them.
> You'd have to parse 'btrfs inspect-internal dump-tree' for the
> nodatacow flag.
>
> nodatacow files are also no compression and no data checksums. So I'm
> betting this is not what you want.

Yes, I have removed the nodatacow option from my mount in fstab as it
clearly had no effect.
I am now using the +C attribute.

--
Regards,
Sreyan Chakravarty
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Re: F33 - KDE broken after dnf update

2020-12-11 Thread Rex Dieter
Sreyan Chakravarty wrote:

> I don't even know which component is causing the problem. All I know is
> that after the update, my KDE is broken.

For starters, what packages were included in this update transaction?

-- Rex 

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Re: btrfs swapfile - Not enough swap space for hibernation.

2020-12-11 Thread Sreyan Chakravarty
On Fri, Dec 11, 2020 at 12:32 AM Chris Murphy  wrote:
>
> If the journal doesn't have more information about why it says this,
> and if the error is reported in the journal by systemd-logind, enable
> debug logging for logind and reproduce and the try to figure out why
> logind is complaining:
>
> https://github.com/systemd/systemd/issues/15354#issuecomment-610385478
>
> There is a possibility there isn't enough contiguous space in the
> swapfile for the hibernation image. i.e. when you fallocate the
> swapfile, it may be comprised of one or even dozens of separate
> extents and if one of them isn't big enough for hibernation entry then
> it'll always fail.
>
> As far as I'm aware there isn't a way to ask fallocate for a minimum
> extent size. I've sometimes had to fallocate multiple files in a row
> to get a swapfile with few fragments and then delete the rest.
>
> You can use filefrag -v to see the extent sizes. Those extents are
> basically holes that swap code writes into. The swap code isn't
> writing swap or hibernation images via Btrfs. It's just asking Btrfs
> "what are the ranges and locations I can use" and Btrfs reports that
> and then the swap and hibernation code use those areas directly.
>
>
> > $ lsattr /var/swap/fedora.swap
> > ---C /var/swap/fedora.swap
>
> > UUID=7d9dbe1b-dea6-4141-807b-026325123ad8 /var/swap
> >btrfs   
> > subvol=swap,rw,nodatacow,noattime,nosuid,x-systemd.device-timeout=0
>
> OK you're confused. You do not need both chattr +C on the file and the
> nodatacow option. You only need one of those. You should realize that
> the nodatacow option applies file system wide. It's non-obvious but
> really only the VFS mount options can apply separately to bind mounts.
> And on Fedora, since subvolumes are mounted to specific mounts points
> and are thus effectively bind mounts behind the scenes, it seems like
> you can apply some mount options to specific subvolumes as if they are
> separate file systems. But that's not what's going on, they're just
> bind mounts. So you can do atime for one mount point, noatime for
> another. And same for ro or rw. Those are VFS options. The Btrfs mount
> options apply file system wide, that includes nodatacow, compress, and
> so on.
>
> Further problem now that you're using nodatacow is that you have a
> bunch of nodatacow files that have been created in the meantime. And
> those do *not* have chattr +C so you have no easy way to find them.
> You'd have to parse 'btrfs inspect-internal dump-tree' for the
> nodatacow flag.
>
> nodatacow files are also no compression and no data checksums. So I'm
> betting this is not what you want.
>


It's a SELinux error. Are there any SELinux experts here ?

I ran the command:

$ sudo ausearch -m AVC,USER_AVC,SELINUX_ERR -ts recent

and got the error:

time->Fri Dec 11 20:19:20 2020
type=AVC msg=audit(1607698160.378:357): avc:  denied  { search } for
pid=1362 comm="systemd-logind" name="swap" dev="dm-0" ino=256
scontext=system_u:system_r:systemd_logind_t:s0
tcontext=system_u:object_r:unlabeled_t:s0 tclass=dir permissive=0


If I run the command:

$ /sbin/restorecon /var/swap/fedora.swap

I get the following error:

time->Fri Dec 11 19:59:56 2020
type=AVC msg=audit(1607696996.854:323): avc:  denied  { read } for
pid=2523 comm="systemd-sleep" name="fedora.swap" dev="dm-0" ino=257
scontext=system_u:system_r:init_t:s0
tcontext=unconfined_u:object_r:var_t:s0 tclass=file permissive=0


My current SELinux label is :

unconfined_u:object_r:swapfile_t:s0 /var/swap/fedora.swap

When I run "/sbin/restorecon", the label changes to :

unconfined_u:object_r:var_t:s0 /var/swap/fedora.swap

IIRC, the correct label is etc_runtime or something like that.

Can any SELinux expert help me ?

-- 
Regards,
Sreyan Chakravarty
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Re: btrfs swapfile - Not enough swap space for hibernation.

2020-12-11 Thread Sreyan Chakravarty
On Fri, Dec 11, 2020 at 8:26 PM Sreyan Chakravarty  wrote:
>
> On Fri, Dec 11, 2020 at 12:32 AM Chris Murphy  wrote:
> >
> > If the journal doesn't have more information about why it says this,
> > and if the error is reported in the journal by systemd-logind, enable
> > debug logging for logind and reproduce and the try to figure out why
> > logind is complaining:
> >
> > https://github.com/systemd/systemd/issues/15354#issuecomment-610385478
> >
> > There is a possibility there isn't enough contiguous space in the
> > swapfile for the hibernation image. i.e. when you fallocate the
> > swapfile, it may be comprised of one or even dozens of separate
> > extents and if one of them isn't big enough for hibernation entry then
> > it'll always fail.
> >
> > As far as I'm aware there isn't a way to ask fallocate for a minimum
> > extent size. I've sometimes had to fallocate multiple files in a row
> > to get a swapfile with few fragments and then delete the rest.
> >
> > You can use filefrag -v to see the extent sizes. Those extents are
> > basically holes that swap code writes into. The swap code isn't
> > writing swap or hibernation images via Btrfs. It's just asking Btrfs
> > "what are the ranges and locations I can use" and Btrfs reports that
> > and then the swap and hibernation code use those areas directly.
> >
> >
> > > $ lsattr /var/swap/fedora.swap
> > > ---C /var/swap/fedora.swap
> >
> > > UUID=7d9dbe1b-dea6-4141-807b-026325123ad8 /var/swap
> > >btrfs   
> > > subvol=swap,rw,nodatacow,noattime,nosuid,x-systemd.device-timeout=0
> >
> > OK you're confused. You do not need both chattr +C on the file and the
> > nodatacow option. You only need one of those. You should realize that
> > the nodatacow option applies file system wide. It's non-obvious but
> > really only the VFS mount options can apply separately to bind mounts.
> > And on Fedora, since subvolumes are mounted to specific mounts points
> > and are thus effectively bind mounts behind the scenes, it seems like
> > you can apply some mount options to specific subvolumes as if they are
> > separate file systems. But that's not what's going on, they're just
> > bind mounts. So you can do atime for one mount point, noatime for
> > another. And same for ro or rw. Those are VFS options. The Btrfs mount
> > options apply file system wide, that includes nodatacow, compress, and
> > so on.
> >
> > Further problem now that you're using nodatacow is that you have a
> > bunch of nodatacow files that have been created in the meantime. And
> > those do *not* have chattr +C so you have no easy way to find them.
> > You'd have to parse 'btrfs inspect-internal dump-tree' for the
> > nodatacow flag.
> >
> > nodatacow files are also no compression and no data checksums. So I'm
> > betting this is not what you want.
> >
>
>
> It's a SELinux error. Are there any SELinux experts here ?
>
> I ran the command:
>
> $ sudo ausearch -m AVC,USER_AVC,SELINUX_ERR -ts recent
>
> and got the error:
>
> time->Fri Dec 11 20:19:20 2020
> type=AVC msg=audit(1607698160.378:357): avc:  denied  { search } for
> pid=1362 comm="systemd-logind" name="swap" dev="dm-0" ino=256
> scontext=system_u:system_r:systemd_logind_t:s0
> tcontext=system_u:object_r:unlabeled_t:s0 tclass=dir permissive=0
>
>
> If I run the command:
>
> $ /sbin/restorecon /var/swap/fedora.swap
>
> I get the following error:
>
> time->Fri Dec 11 19:59:56 2020
> type=AVC msg=audit(1607696996.854:323): avc:  denied  { read } for
> pid=2523 comm="systemd-sleep" name="fedora.swap" dev="dm-0" ino=257
> scontext=system_u:system_r:init_t:s0
> tcontext=unconfined_u:object_r:var_t:s0 tclass=file permissive=0
>
>
> My current SELinux label is :
>
> unconfined_u:object_r:swapfile_t:s0 /var/swap/fedora.swap
>
> When I run "/sbin/restorecon", the label changes to :
>
> unconfined_u:object_r:var_t:s0 /var/swap/fedora.swap
>
> IIRC, the correct label is etc_runtime or something like that.
>
> Can any SELinux expert help me ?
>
> --
> Regards,
> Sreyan Chakravarty


I also got the following allow rules from "sesearch --allow | grep swap"

allow devices_unconfined_type device_node:blk_file { append
audit_access create execmod execute getattr ioctl link lock map
mounton open quotaon read relabelfrom relabelto rename setattr swapon
unlink write };
allow devices_unconfined_type device_node:chr_file { append
audit_access create execute execute_no_trans getattr ioctl link lock
map mounton open quotaon read relabelfrom relabelto rename setattr
swapon unlink write };
allow devices_unconfined_type device_node:file { append audit_access
create execute execute_no_trans getattr ioctl link lock map mounton
open quotaon read relabelfrom relabelto rename setattr swapon unlink
write };
allow devices_unconfined_type device_node:lnk_file { append
audit_access create execmod execute getattr ioctl link lock map
mounton open quotaon read relabelfrom relabelto rename setattr swapon
unlink write };
allow files_unconfined_type file_type:bl

Re: btrfs swapfile - Not enough swap space for hibernation.

2020-12-11 Thread stan via users
On Fri, 11 Dec 2020 20:26:31 +0530
Sreyan Chakravarty  wrote:
 
> It's a SELinux error. Are there any SELinux experts here ?

[snip]

> My current SELinux label is :
> 
> unconfined_u:object_r:swapfile_t:s0 /var/swap/fedora.swap

Not an expert.
There is no context for this, as it is your unique creation, so
restorecon won't work. Use
chcon -u system_u /var/swap/fedora.swap
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how to install "4K Video Downloader"?

2020-12-11 Thread home user
Once in a while, I want to download a video that I enjoyed watching in Firefox. 
 I googled this.  One recommended tool was the "Video DownloadHelper" add-on 
for Firefox.  I installed it; it worked fine for one video, but not the second. 
   Another article pointed to by google is:
"https://www.pcmag.com/news/how-to-download-youtube-videos";.
Its first recommended tool is VLC.  It worked on the one "Video DownloadHelper" 
could not handle, but the result was not the best resolution available.  VLC 
doesn't do more than 1K resolution (according to the article).  The second 
thing the article recommended was "4K Video Downloader".  The web site for this 
application is here:
"https://www.4kdownload.com/";.
I downloaded the installation package from here:
"https://www.4kdownload.com/downloads";.
Its website characterizes iwhat I downloaded as an Ubuntu 64-bit offline 
installer.  How do I get this Ubuntu application installed and working on my 
Fedora-32 home workstation?  I could not find any instructions for this, and 
the button for getting help does not work.
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Re: how to install "4K Video Downloader"?

2020-12-11 Thread Mike Wright

On 12/11/20 9:15 AM, home user wrote:

Once in a while, I want to download a video that I enjoyed watching in Firefox.  I 
googled this.  One recommended tool was the "Video DownloadHelper" add-on for 
Firefox.  I installed it; it worked fine for one video, but not the second.Another 
article pointed to by google is:
"https://www.pcmag.com/news/how-to-download-youtube-videos";.
Its first recommended tool is VLC.  It worked on the one "Video DownloadHelper" could not 
handle, but the result was not the best resolution available.  VLC doesn't do more than 1K 
resolution (according to the article).  The second thing the article recommended was "4K Video 
Downloader".  The web site for this application is here:
"https://www.4kdownload.com/";.
I downloaded the installation package from here:
"https://www.4kdownload.com/downloads";.
Its website characterizes iwhat I downloaded as an Ubuntu 64-bit offline 
installer.  How do I get this Ubuntu application installed and working on my 
Fedora-32 home workstation?  I could not find any instructions for this, and 
the button for getting help does not work.


Under the hood ubuntu and fedora share many of the same libraries.  Some 
stuff lives in different places.


This is not rocket science but not exactly amateur hour either.

Since you have the .deb file (an ubuntu .rpm) you can examine its 
layout.  Go to your $HOME and mkdir tmp.


e.g. "dpgk-deb -R 4kvideodownloader_4.13.4-1_amd64.deb tmp".  After that 
cd tmp and have a look around.  If you make changes and want to save 
them into the .deb you'll have to create a new one:

"dpkg-deb -b tmp 4kvideodownloader_custom_4.13.4-1_amd64.deb"

Now I've never tried this but if there are .rpm's for dpkg and dpkg-deb 
your might be able to install them directly onto your system (deb's and 
rpm's use different databases, etc).  If you're feeling really 
adventurous you might even try converting the tmp/* into an rpm. 
(Again, never tried that one)


:m
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Re: F33 - KDE broken after dnf update

2020-12-11 Thread Sreyan Chakravarty
On Fri, Dec 11, 2020 at 7:57 PM Rex Dieter  wrote:
>
> For starters, what packages were included in this update transaction?
>
> -- Rex

How do I find that out ?
-- 
Regards,
Sreyan Chakravarty
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kernels from rawhide - how to make the them usable to ABRT?

2020-12-11 Thread lejeczek via users

Hi guys,

I use "rawhide" repo to grab only the kernel, simply like:

$ dnf update kernel\* --enablerepo rawhide -y --nogpgcheck

On my Lenovo ThinkPad E14 Gen2 I get my ABRT often report 
"Unexpected system error" but always with:


"The backtrace does not contain enough meaningful function 
frames to be reported. It is annoying but it does not 
necessarily signalize a problem with your computer. ABRT 
will not allow you to create a report in a bug tracking 
system but you can contact kernel maintainers via e-mail."


What I wonder of is - how to make it work. How to have both 
Rawhide's kernel + ABRT to debug & report as it normally 
should - would you know?

Am I missing something in terms of packages, config, etc?

many thanks, L.
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Re: kernels from rawhide - how to make the them usable to ABRT?

2020-12-11 Thread stan via users
On Fri, 11 Dec 2020 18:17:10 +
lejeczek via users  wrote:

> I use "rawhide" repo to grab only the kernel, simply like:
> 
> $ dnf update kernel\* --enablerepo rawhide -y --nogpgcheck
> 
> On my Lenovo ThinkPad E14 Gen2 I get my ABRT often report 
> "Unexpected system error" but always with:
> 
> "The backtrace does not contain enough meaningful function 
> frames to be reported. It is annoying but it does not 
> necessarily signalize a problem with your computer. ABRT 
> will not allow you to create a report in a bug tracking 
> system but you can contact kernel maintainers via e-mail."
> 
> What I wonder of is - how to make it work. How to have both 
> Rawhide's kernel + ABRT to debug & report as it normally 
> should - would you know?
> Am I missing something in terms of packages, config, etc?

I think I recall reading that debug kernels are only produced for
stable versions of Fedora.  If you want to have a debug rawhide kernel,
you will have to turn on debugging in the spec file and compile it
yourself.
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Re: how to install "4K Video Downloader"?

2020-12-11 Thread Samuel Sieb

On 12/11/20 9:15 AM, home user wrote:

Once in a while, I want to download a video that I enjoyed watching in Firefox.  I 
googled this.  One recommended tool was the "Video DownloadHelper" add-on for 
Firefox.  I installed it; it worked fine for one video, but not the second.Another 
article pointed to by google is:


I use "youtube-dl" from the command line, it gives you a lot of control 
over exactly what formats you want.  "youtube-dl -F url" will give you 
the list of available formats and then you can use "youtube-dl -f {n} 
url" to get it.  See the man page for details.  Btw, even though it's 
called "youtube"-dl, it can download from many other sites as well.

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Re: how to install "4K Video Downloader"?

2020-12-11 Thread Mauricio Tavares
On Fri, Dec 11, 2020 at 3:19 PM Samuel Sieb  wrote:
>
> On 12/11/20 9:15 AM, home user wrote:
> > Once in a while, I want to download a video that I enjoyed watching in 
> > Firefox.  I googled this.  One recommended tool was the "Video 
> > DownloadHelper" add-on for Firefox.  I installed it; it worked fine for one 
> > video, but not the second.Another article pointed to by google is:
>
> I use "youtube-dl" from the command line, it gives you a lot of control
> over exactly what formats you want.  "youtube-dl -F url" will give you
> the list of available formats and then you can use "youtube-dl -f {n}
> url" to get it.  See the man page for details.  Btw, even though it's
> called "youtube"-dl, it can download from many other sites as well.

  I too use youtube-dl. It has a reddit page and you can download
it with pip

pip install youtube-dl

In fact, I am using it right now to download a talk I gave two months ago.

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Re: how to install "4K Video Downloader"?

2020-12-11 Thread home user

On 12/11/20 10:46 AM, Mike Wright wrote:


This is not rocket science but not exactly amateur hour either.

Since you have the .deb file (an ubuntu .rpm) you can examine its 
layout.  Go to your $HOME and mkdir tmp.


e.g. "dpgk-deb -R 4kvideodownloader_4.13.4-1_amd64.deb tmp". 


I assume you meant dpkg-deb rather than dpgk-deb.

I had to install dpkg.


After that cd tmp and have a look around.


The command gave no errors,  ~/tmp is quite an extensive tree of things. 
 I'm lost in it.  I also get lost in dpkg's man page.


What next?

A post just arrived from Samuel.  I will see what he says.
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Re: how to install "4K Video Downloader"?

2020-12-11 Thread Samuel Sieb

On 12/11/20 12:21 PM, Mauricio Tavares wrote:

   I too use youtube-dl. It has a reddit page and you can download
it with pip

pip install youtube-dl


Or just "dnf install youtube-dl".
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Re: F33 - KDE broken after dnf update

2020-12-11 Thread Ed Greshko

On 12/12/2020 01:58, Sreyan Chakravarty wrote:

On Fri, Dec 11, 2020 at 7:57 PM Rex Dieter  wrote:

For starters, what packages were included in this update transaction?

-- Rex

How do I find that out ?


You use the "dnf history" commands.

Do a "man dnf" and you should be able figure out how to do it.

---
The key to getting good answers is to ask good questions.
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Re: how to install "4K Video Downloader"?

2020-12-11 Thread home user

On 12/11/20 1:30 PM, Samuel Sieb wrote:

On 12/11/20 12:21 PM, Mauricio Tavares wrote:

   I too use youtube-dl. It has a reddit page and you can download
it with pip

pip install youtube-dl


Or just "dnf install youtube-dl".


Thank-you Mauricio and Samuel.  The dnf command suggested by Samuel 
worked fine.


The man page is long and overwhelming.  And I don't really know how 
videos work.  I try this:

bash.6[~]: youtube-dl -F https://www.youtube.com/watch?v=JahX9hOfz5A
I put the output in the attached text file "output.txt".
If I understood things correctly,
"youtube-dl https://www.youtube.com/watch?v=JahX9hOfz5A";
will give me 1280x720 video and 22050Hz audio as "best".  How is that 
"best"?  It seems that "best" would be 1920x1080 video and 48000Hz 
audio.  How do I get that in one file that VLC can play properly?


Another question: If I want to know what resolution was used to make the 
original video and audio, and download with the result being that, how 
do I do it?

[info] Available formats for JahX9hOfz5A:
format code  extension  resolution note
139  m4aaudio only DASH audio   51k , m4a_dash container, 
mp4a.40.5@ 48k (22050Hz)
140  m4aaudio only DASH audio  131k , m4a_dash container, 
mp4a.40.2@128k (44100Hz)
251  webm   audio only DASH audio  138k , webm_dash container, opus 
@160k (48000Hz)
278  webm   256x144DASH video   95k , webm_dash container, vp9, 
30fps, video only
160  mp4256x144DASH video  108k , mp4_dash container, 
avc1.4d400b, 30fps, video only
242  webm   426x240DASH video  220k , webm_dash container, vp9, 
30fps, video only
133  mp4426x240DASH video  242k , mp4_dash container, 
avc1.4d400c, 30fps, video only
243  webm   640x360DASH video  405k , webm_dash container, vp9, 
30fps, video only
134  mp4640x360DASH video  636k , mp4_dash container, 
avc1.4d401e, 30fps, video only
244  webm   854x480DASH video  752k , webm_dash container, vp9, 
30fps, video only
135  mp4854x480DASH video 1155k , mp4_dash container, 
avc1.4d4014, 30fps, video only
247  webm   1280x720   DASH video 1505k , webm_dash container, vp9, 
30fps, video only
136  mp41280x720   DASH video 2310k , mp4_dash container, 
avc1.4d4016, 30fps, video only
248  webm   1920x1080  DASH video 2646k , webm_dash container, vp9, 
30fps, video only
137  mp41920x1080  DASH video 4331k , mp4_dash container, 
avc1.64001e, 30fps, video only
18   mp4640x360360p  644k , avc1.42001E, 30fps, mp4a.40.2@ 
96k (44100Hz), 45.93MiB
22   mp41280x720   720p 2341k , avc1.64001F, 30fps, 
mp4a.40.2@192k (44100Hz) (best)
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Re: how to install "4K Video Downloader"?

2020-12-11 Thread Cameron Simpson
On 11Dec2020 14:17, home user  wrote:
>bash.6[~]: youtube-dl -F https://www.youtube.com/watch?v=JahX9hOfz5A
>I put the output in the attached text file "output.txt".
>If I understood things correctly,
>"youtube-dl https://www.youtube.com/watch?v=JahX9hOfz5A";
>will give me 1280x720 video and 22050Hz audio as "best".  How is that 
>"best"?  It seems that "best" would be 1920x1080 video and 48000Hz 
>audio.  How do I get that in one file that VLC can play properly?

Note that VLC isn't your only choice. I use mpv a lot myself.

youtube-dl looks for a config in ~/.config/youtube-dl/config.
Mine says:

--cache-dir '~/.cache/youtube-dl'
--add-metadata
--xattrs
--no-mtime
-o 
'%(title)s--%(uploader)s@youtube--%(upload_date)s--%(resolution)s--id=%(id)s.%(ext)s'
-f 'bestvideo[ext=mp4]+bestaudio/best[ext=mp4]/best'

The -f option is what you want for control. It doesn't always seem to do 
what I want, but that is the section of the manual you want.

The above often chooses a MKV download for me, maybe because of audio 
formats? For purposes of my DVR I convert MKVs to MP4s with:

ffmpeg -i blah.mkv blah.mp4

>Another question: If I want to know what resolution was used to make 
>the original video and audio, and download with the result being that, 
>how do I do it?

I don't know if the "original" format is a knowable thing, I just 
presume youtube itself doesn't upscale and that therefore the highest 
res should be the original.

Cheers,
Cameron Simpson 
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no mail from users/test lists since about 5 days

2020-12-11 Thread AV
Still not working. I contacted my ISP Ziggo but as I expected
they are not really helpful. If the problem is related to
their mail setup then I suspect I will only get action if I 
can specify the actual problem (and possibly a solution).

Two things I could investigate are:
1) are my data given when joining the mailing lists still
   correct. But I don't know where these are accessible.
   Can somebody tell me where to find it.
2) is the problem in some way related to dns servers and/or
   the way dns is handled in fedora?

Can somebody tell me where the sign up data for the Fedora
mailing lists is stored.
Please reply to volov...@ziggo.nl and NOT to the list.

AV


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Re: how to install "4K Video Downloader"?

2020-12-11 Thread Samuel Sieb

On 12/11/20 1:17 PM, home user wrote:
The man page is long and overwhelming.  And I don't really know how 
videos work.  I try this:


First thing to know is that usually a video file is a container holding 
a video stream and one or more audio streams.  You need to tell 
youtube-dl which combination you want.



bash.6[~]: youtube-dl -F https://www.youtube.com/watch?v=JahX9hOfz5A
I put the output in the attached text file "output.txt".
If I understood things correctly,
"youtube-dl https://www.youtube.com/watch?v=JahX9hOfz5A";
will give me 1280x720 video and 22050Hz audio as "best".  How is that 
"best"?  It seems that "best" would be 1920x1080 video and 48000Hz 
audio.  How do I get that in one file that VLC can play properly?


I'm not sure exactly how it picks best, but that's the highest quality 
*combined* stream.  For the higher quality ones, you need to mix and 
match.  If you look closely at the list, the last two entries have both 
a video stream and an audio stream where the rest have one or the other. 
 You use the numbers at the front of the line to pick that stream.  For 
the best combo, you would use "-f 137+140".  The result will be an .mp4 
file with both streams and VLC can play that.


Another question: If I want to know what resolution was used to make the 
original video and audio, and download with the result being that, how 
do I do it?


As Cameron said, I would also assume the highest quality version is the 
original source.  And in most cases, I expect the webm format is 
transcoded from the mp4.

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Plasma System Settings Online Accounts Appears not to Work

2020-12-11 Thread Stephen Morris

Hi,
    I am running F33 inside a Vmware Player 16 vm and using Plasma as 
my desktop. When I go into system settings -> Online Accounts it 
displays no accounts are added yet in the middle of the page with a "+ 
Add New Account" button underneath it. There is also the same button in 
the bottom right hand corner. If I click on either button the page title 
changes to Accounts > Add New Account and displays a blank page and 
there is no text or buttons anywhere. Am I doing something wrong?


regards,
Steve
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Re: Plasma System Settings Online Accounts Appears not to Work

2020-12-11 Thread Colin J Thomson
Hi,

On Saturday, 12 December 2020 00:56:00 GMT Stephen Morris wrote:

> I am running F33 inside a Vmware Player 16 vm and using Plasma as 
> my desktop. When I go into system settings -> Online Accounts it 
> displays no accounts are added yet in the middle of the page with a "+ 
> Add New Account" button underneath it. There is also the same button in 
> the bottom right hand corner. If I click on either button the page title 
> changes to Accounts > Add New Account and displays a blank page and 
> there is no text or buttons anywhere. Am I doing something wrong?

It's most likely related to this bug:-

https://bugs.kde.org/show_bug.cgi?id=429617

-Colin
-- 
Fedora 33

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Re: how to install "4K Video Downloader"?

2020-12-11 Thread home user

On 12/11/20 2:49 PM, Cameron Simpson wrote:


Note that VLC isn't your only choice. I use mpv a lot myself.


dnf isn't finding mpv.


youtube-dl looks for a config in ~/.config/youtube-dl/config.
Mine says:

 --cache-dir '~/.cache/youtube-dl'
 --add-metadata
 --xattrs
 --no-mtime
 -o 
'%(title)s--%(uploader)s@youtube--%(upload_date)s--%(resolution)s--id=%(id)s.%(ext)s'
 -f 'bestvideo[ext=mp4]+bestaudio/best[ext=mp4]/best'



A config file looks like a good idea.  I'll come back to this after I've 
got the basics down pat.



The -f option is what you want for control. It doesn't always seem to do
what I want, but that is the section of the manual you want.


That helped.

I tried "-f bestvideo+bestaudio", but it complained it couldn't merge 
the two parts.  I had to install ffmpeg.  Then "-f bestvideo+bestaudio" 
worked.



I don't know if the "original" format is a knowable thing, I just
presume youtube itself doesn't upscale and that therefore the highest
res should be the original.


I'm not sure of that.  I've viewed some youtube videos where the highest 
resolution available appeared slightly, subtly worse that the next 
highest.  This hints to me that youtube will extrapolate the original up 
one step to provide a bigger picture.  But anything more results in too 
much quality loss.  Makes sense.  If I had a camcorder that recorded 
144p (256x144), 30 fps, and try to display that as 4k, 60fps, I 
anticipate I'd see serious pixelization.


Thanks,
Bill.
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Re: Plasma System Settings Online Accounts Appears not to Work

2020-12-11 Thread Stephen Morris

On 12/12/20 12:08 pm, Colin J Thomson wrote:

Hi,

On Saturday, 12 December 2020 00:56:00 GMT Stephen Morris wrote:


 I am running F33 inside a Vmware Player 16 vm and using Plasma as
my desktop. When I go into system settings -> Online Accounts it
displays no accounts are added yet in the middle of the page with a "+
Add New Account" button underneath it. There is also the same button in
the bottom right hand corner. If I click on either button the page title
changes to Accounts > Add New Account and displays a blank page and
there is no text or buttons anywhere. Am I doing something wrong?

It's most likely related to this bug:-

https://bugs.kde.org/show_bug.cgi?id=429617

-Colin
Thanks Colin, I checked out that link and it is similar but not quite 
the same. I don't believe I'm even getting that far. When selecting 
online accounts I was expecting it to show a list of supported account 
types to select from the same as it does in the Online Account section 
of the install process, and once you select an account type I was 
expecting it to prompt for credentials. My issue is I don't even get 
that far, I don't get the list of supported account types after clicking 
on the Add Account button, let alone a prompt for credentials.


regards,
Steve

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Re: how to install "4K Video Downloader"?

2020-12-11 Thread Stephen Morris

On 12/12/20 12:57 pm, home user wrote:

On 12/11/20 2:49 PM, Cameron Simpson wrote:


Note that VLC isn't your only choice. I use mpv a lot myself.


dnf isn't finding mpv.


youtube-dl looks for a config in ~/.config/youtube-dl/config.
Mine says:

 --cache-dir '~/.cache/youtube-dl'
 --add-metadata
 --xattrs
 --no-mtime
 -o 
'%(title)s--%(uploader)s@youtube--%(upload_date)s--%(resolution)s--id=%(id)s.%(ext)s'

 -f 'bestvideo[ext=mp4]+bestaudio/best[ext=mp4]/best'



A config file looks like a good idea.  I'll come back to this after 
I've got the basics down pat.



The -f option is what you want for control. It doesn't always seem to do
what I want, but that is the section of the manual you want.


That helped.

I tried "-f bestvideo+bestaudio", but it complained it couldn't merge 
the two parts.  I had to install ffmpeg.  Then "-f 
bestvideo+bestaudio" worked.



I don't know if the "original" format is a knowable thing, I just
presume youtube itself doesn't upscale and that therefore the highest
res should be the original.


I'm not sure of that.  I've viewed some youtube videos where the 
highest resolution available appeared slightly, subtly worse that the 
next highest.  This hints to me that youtube will extrapolate the 
original up one step to provide a bigger picture.  But anything more 
results in too much quality loss.  Makes sense.  If I had a 
camcorder that recorded 144p (256x144), 30 fps, and try to display 
that as 4k, 60fps, I anticipate I'd see serious pixelization.
Maybe, maybe not. I've been busy converted videos I've downloaded to 4k 
using a couple of video converters under windows and Linux, and one of 
the windows converters suggests not doing the conversions as the 
conversion will just increase the file size, and that these days the 
devices the videos are playing on do a better job at up scaling the 
video than what the converters can do anyway. The other thing you need 
to consider is how you are playing the videos. I have my videos stored 
on a network device because my 4k TV can play the H264 or H265 videos 
directly off the network drive, but as I have an AX protocol router 
providing my wifi, the TV cannot play the 4k 60 fps videos properly 
because the wifi struggles to provide enough bandwidth (I think a 1.3 
GHz AC router would be better) but if I use the Ethernet over the home 
electrical wire capability that I have the TV seems to be able to play 
the videos quite happily, the same also applies to my computer.


regards,
Steve



Thanks,
Bill.
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Re: how to install "4K Video Downloader"?

2020-12-11 Thread home user

On 12/11/20 3:08 PM, Samuel Sieb wrote:

First thing to know is that usually a video file is a container holding 
a video stream and one or more audio streams.  You need to tell 
youtube-dl which combination you want.


That is helpful.  There's quite a lot of other terminology, but it's 
looking like I don't really need to dig into that.


I'm not sure exactly how it picks best, but that's the highest quality 
*combined* stream.  For the higher quality ones, you need to mix and 
match.  If you look closely at the list, the last two entries have both 
a video stream and an audio stream where the rest have one or the other. 
  You use the numbers at the front of the line to pick that stream.  For 
the best combo, you would use "-f 137+140".  The result will be an .mp4 
file with both streams and VLC can play that.


I'm new at this, but I'm thinking "-f bestvideo+bestaudio" will cover 
most of my cases.  I notice there's no mention of stereo vs. mono sound.


Another question: If I want to know what resolution was used to make 
the original video and audio, and download with the result being that, 
how do I do it?


As Cameron said, I would also assume the highest quality version is the 
original source.  And in most cases, I expect the webm format is 
transcoded from the mp4.


I've succeeded in downloading, saving, and viewing two videos now.  The 
files are huge.  I'm glad I plan to do this only once in a while.  I'll 
have to try this with a video of an old black-and-white subject, like an 
episode of The Rifleman.  Maybe I can find the episode in which the teen 
boy Mark is told that looking for a girlfriend is different from roping 
a calf because if he tries to rope a girl, he might get roped back!


Occasionally, I view a video in which one musician really impresses me, 
both in that he seems to really enjoy or be into what he's doing and in 
his skill.  So I want to stop, repeat, view it very slowly, and even 
step back or forth one frame at a time, both for educational purposes 
and for better appreciation of the musician's skills.  A few videos that 
I've done that with disappeared or were made private.  This has me 
wondering if such viewing gets reported to the channel owner.  By 
downloading the video, I'm hoping I can do the single framing, etc. 
without the channel owner knowing.  I otherwise would prefer to view the 
video online, so the channel owner gets his views, likes, and money.


Now I must learn how in VLC to do the forward and backward 
single-framing, and the reduced-speed viewing.  So I'll be spending time 
in its user's guide.


I'm guessing the silence about "4K Video Downloader" means that route is 
more trouble than it's worth.  With youtube-dl looking good, I think 
once another test or two is passed, I'll tag this thread solved.

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Re: how to install "4K Video Downloader"?

2020-12-11 Thread Samuel Sieb

On 12/11/20 5:57 PM, home user wrote:
I tried "-f bestvideo+bestaudio", but it complained it couldn't merge 
the two parts.  I had to install ffmpeg.  Then "-f bestvideo+bestaudio" 
worked.


Oh, that's right.  When you're downloading separate streams, it needs 
something to repack them into a container.  That's what ffmpeg is for.

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Re: Plasma System Settings Online Accounts Appears not to Work

2020-12-11 Thread Ed Greshko

On 12/12/2020 08:56, Stephen Morris wrote:
I am running F33 inside a Vmware Player 16 vm and using Plasma as my desktop. When I go into system settings -> Online Accounts it displays no accounts are added yet in the middle of the page with a "+ Add New Account" button underneath it. There is also the same button in the bottom right hand corner. If I click on either button the page title changes to Accounts > Add New Account and displays a blank page and there is no text or buttons anywhere. Am I doing something wrong? 


No.

I'd never checked or added an Online Account.

My "production" system was installed a few releases ago and has been upgraded 
to F33.  It has
selections for Google, NextCloud, and NewCloud.

A F33 installed in a VM lacks any selections.  So, same as you're seeing.

I didn't investigate beyond that.

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Re: Plasma System Settings Online Accounts Appears not to Work

2020-12-11 Thread Ed Greshko

On 12/12/2020 13:20, Ed Greshko wrote:
I didn't investigate beyond that. 


OK, I lied.  Or, I couldn't help myself.  Take your choice.

The issue is that kaccounts-providers is not installed.

Do

sudo dnf install kaccounts-providers

And you should get 3 choices.

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Re: btrfs swapfile - Not enough swap space for hibernation.

2020-12-11 Thread Sreyan Chakravarty
On Fri, 11 Dec 2020, 9:05 pm stan via users, 
wrote:

> On Fri, 11 Dec 2020 20:26:31 +0530
> Sreyan Chakravarty  wrote:
>
> > It's a SELinux error. Are there any SELinux experts here ?
>
> [snip]
>
> > My current SELinux label is :
> >
> > unconfined_u:object_r:swapfile_t:s0 /var/swap/fedora.swap
>
> Not an expert.
> There is no context for this, as it is your unique creation, so
> restorecon won't work. Use
> chcon -u system_u /var/swap/fedora.swap
>

I am a novice of I am very squeamish about applying commands without
understanding them.

Is system_u a type? Is there any way to view all types for SELinux within
Fedora?

How do I use the sesearch tool?

Is there any GUI for SELinux? Is apol still a thing?

>
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Re: Plasma System Settings Online Accounts Appears not to Work

2020-12-11 Thread Stephen Morris

On 12/12/20 4:38 pm, Ed Greshko wrote:

On 12/12/2020 13:20, Ed Greshko wrote:
I didn't investigate beyond that. 


OK, I lied.  Or, I couldn't help myself.  Take your choice.

The issue is that kaccounts-providers is not installed.

Do

sudo dnf install kaccounts-providers

And you should get 3 choices.
Thanks Ed, that worked, but one question it raises is how do we get 
offered a selection from all the accounts that are offered during the 
install process?
Having done the install and gotten the list of the 3 accounts, I 
selected google, which then sent a security verification message to my 
phone and after accepting that the dialogue box the showed the number to 
verify on the phone that proceeded to a blank page which I think is the 
issue that has been raised in the defect linked to by Colin.


regards,
Steve



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