Thanks Deepak,
Yes, It worked for me.
David: just for confirmation,
I have checked the DevStack script and the command for OVS is "apt_get
install openvswitch-switch openvswitch-datapath-dkms" and Deepak gave me
the command is "apt-get install openvswitch-datapath-dkms
openvswitch-common openvswitch-switch".
I think "openvswitch-common" has been added into that. Cloud you please
cross check this command in your updated devstack script?
Thanks,
Hitesh
On Thu, Mar 22, 2012 at 4:20 PM, Deepak Garg <deepakgarg.i...@gmail.com>wrote:
> I have had this issue at times and reinstalling everything works for me.
>
> $ sudo apt-get remove openvswitch-datapath-dkms openvswitch-common
> openvswitch-switch
> $ sudo apt-get install openvswitch-datapath-dkms openvswitch-common
> openvswitch-switch
>
> Just verified with Hitesh, it worked for him too.
>
> Deepak
>
>
>
> On Wed, Mar 14, 2012 at 1:17 AM, hitesh wadekar
> <hitesh.wade...@gmail.com> wrote:
> > Hi Piyanai,
> >
> > Thank you very much for the overview of the OVS. It is really helpful to
> > understand the working of OVS and its kernel module. I was looking for
> it.
> >
> > Yes you are right it is an already existence bridge (Linux bridge)
> problems
> > that OVS tried to removed it, but it failed.
> >
> > However, to overcome to this problem, I will have to remove existence
> Linux
> > created bridge. But the problem is If I deleted the instance of the
> > Ethernet bridge (Linux), the network interface corresponding to the
> bridge
> > will be down. Considering this case in mind, first we need to download
> the
> > OVS packages manually, then we need to delete Linux bridge and after
> that we
> > need to install OVS package. Once OVS packages have been Installed
> > successfully then we need to create bridge using OVS commands.
> >
> > I hope these all steps will work. I am going to test this soon.
> >
> > I am wondering, How these steps have been handled in DevStack script?
> >
> > Dan, David and Brad, Could you please correct me if I am wrong?
> >
> > Thanks all for your valuable input.
> >
> > I will try above first and will let you know the result about it.
> >
> > Thanks and enjoy,
> > Hitesh Wadekar
> >
> >
> >
> > On Mon, Mar 12, 2012 at 7:10 PM, Piyanai Saowarattitada <
> pns...@gmail.com>
> > wrote:
> >>
> >> Hi Hitesh,
> >>
> >> > Setting up openvswitch-switch (1.2.0-1ubuntu3) ...
> >> > FATAL: Module openvswitch_mod not found.
> >> > * Inserting openvswitch module
> >> > * not removing bridge module because bridges exist (br100 virbr0)
> >>
> >> I interpret this as that the attempt to remove (Linux) "bridge" kernel
> >> module was made, but it failed because there existed module
> >> dependency, i.e. "br100" and "virbr0". Perhaps, "br100" and "virbr0"
> >> were created using the Linux "bridge" kernel module rather than the
> >> OpenVswitch (OVS) "brcompat_mod" kernel module.
> >> Judging from the "FATAL" Module openvswitch_mod not found", my guess,
> >> is that the system did not have OVS installed before invoking
> >> DevStack.
> >>
> >> Try removing br100 and virbr0 first and add them back once the OVS
> >> installation is successfully done ?
> >> You could use "brctl delbr"...
> >>
> >> Note that I only use OVS for a few weeks, but this is my
> understanding...
> >> OVS has its own bridge kernel module, "brcompat_mod" which could be
> >> installed as part of OVS installation. To OVS users, "brcompat_mod"
> >> kernel module performs what the default (Linux) "bridge" kernel module
> >> does. In order to install the "brcompat_mod" kernel module, the
> >> default "bridge" module needs to be removed first. This implies that
> >> any bridge created using the "bridge" kernel module, would need to be
> >> deleted ("brctl delbr") before the "bridge" kernel module can be
> >> removed. Once OVS is installed successfully, and both
> >> "openvswitch_mod" and "brcompat_mod" are loaded into the kernel, your
> >> previously created bridges, br100 for example, can be recreated using
> >> the "brcompat_mod" kernel module (transparently) via "ovs-vsctl" or
> >> "brctl" shell commands.
> >>
> >> Btw, I also found that the "brcompat_mod" does not automatically load
> >> 802.1q (VLAN) kernel module. Thus, if you plan to have a VLAN
> >> interface on your bridge, you would have to load the "8021q" kernel
> >> module manually after the "brcompat_mod" is loaded.
> >>
> >> All of these kernel modules, "bridge", "openvswitch_mod",
> >> "brcompat_mod" and "8021q" are dynamically loadable kernel modules
> >> i.e. they can be loaded/unloaded at will using "insmod" or
> >> "modprobe"...
> >>
> >> To install OVS manually, I use the "INSTALL.*" instruction files at
> >> the top level directory in the OVS distribution tarball...
> >> I also found both http://openvswitch.org/support/ - click the
> >> hypervisor/scenario of choice, and the discussion archive at
> >> http://openvswitch.org/pipermail/discuss/ helpful.
> >>
> >> HTH,
> >> Piyanai
> >>
> >> On Mon, Mar 12, 2012 at 3:17 PM, hitesh wadekar
> >> <hitesh.wade...@gmail.com> wrote:
> >> > Hello Friends,
> >> >
> >> > I want to fix the "Quantum Starter Bugs"
> >> > (http://wiki.openstack.org/QuantumStarterBugs) . For this, I have
> >> > enabled
> >> > the quantum service in the DevStack script to install and run Quantum
> (
> >> > added commands in ENABLE_SERVICE). However, while running the script I
> >> > got
> >> > these errors for Openvswitch (OVS).
> >> >
> >> > 0 upgraded, 0 newly installed, 0 to remove and 57 not upgraded.
> >> > 1 not fully installed or removed.
> >> > After this operation, 0 B of additional disk space will be used.
> >> > Setting up openvswitch-switch (1.2.0-1ubuntu3) ...
> >> > FATAL: Module openvswitch_mod not found.
> >> > * Inserting openvswitch module
> >> > * not removing bridge module because bridges exist (br100 virbr0)
> >> > invoke-rc.d: initscript openvswitch-switch, action "start" failed.
> >> > dpkg: error processing openvswitch-switch (--configure):
> >> > subprocess installed post-installation script returned error exit
> >> > status 1
> >> > No apport report written because MaxReports is reached already
> >> > Errors
> >> > were
> >> > encountered while processing:
> >> > openvswitch-switch
> >> > E: Sub-process /usr/bin/dpkg returned an error code (1)
> >> > ++ failed
> >> > ++ local r=100
> >> > ++ set +o xtrace
> >> >
> >> > Also, I tried to install openvswitch manually, but had no luck !!.
> >> >
> >> > On the net I found that there is a bug for openvswitch (Ubuntu
> Oneiric)
> >> > package (
> >> > https://bugs.launchpad.net/ubuntu/+source/openvswitch/+bug/894754
> >> > )
> >> >
> >> > I am sure somebody would have already been come across this bug, any
> >> > commands or steps that I need follow to install openvswitch on ubuntu
> >> > oneric?
> >> >
> >> > Any input on this is highly appreciated.
> >> >
> >> > Thanks for your time.
> >> >
> >> > Thanks,
> >> > Hitesh Wadekar
> >> > hitesh.wade...@gmail.com
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > _______________________________________________
> >> > Mailing list: https://launchpad.net/~openstack
> >> > Post to : openst...@lists.launchpad.net
> >> > Unsubscribe : https://launchpad.net/~openstack
> >> > More help : https://help.launchpad.net/ListHelp
> >> >
> >
> >
> >
> > --
> > Mailing list: https://launchpad.net/~netstack
> > Post to : netstack@lists.launchpad.net
> > Unsubscribe : https://launchpad.net/~netstack
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> >
>
>
>
> --
>
> Deepak Garg,
> Data Center and Cloud Div.
> Citrix R&D, India
> Skype-id: deepakgarg.iit
>
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