Subject: Re: [vserver] vserver configuation options
From: Nikolay Kichukov <hijacker@oldum.net>
Date: Mon, 14 Jun 2010 09:31:19 +0300

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

I doubt you are not able to start a guest because of the cgroup controller. You should
be seeking the problem somewhere
else. Please post your util-vserver version + kernel and vserver patch for the time
being.

Thanks,
- -Nik

Nirmal Guhan wrote:
> Any help on this? Please help.
> 
> Thanks,
> --Nirmal
> 
> On Fri, Jun 11, 2010 at 11:55 AM, Nirmal Guhan <vavatutu@gmail.com
> <mailto:vavatutu@gmail.com>> wrote:
> 
> 
>     On Fri, Jun 11, 2010 at 12:56 AM, Corey Wright <undefined@pobox.com
>     <mailto:undefined@pobox.com>> wrote:
> 
>         On Thu, 10 Jun 2010 18:51:27 -0700
>         Nirmal Guhan <vavatutu@gmail.com <mailto:vavatutu@gmail.com>> wrote:
> 
>         > Hi,
>         >
>         > Am just looking at
>         > http://www.nongnu.org/util-vserver/doc/conf/configuration.html
>         to see how
>         > I can modify the cpu and/or memory related parameters. Running
>         into an
>         > error with post-start :
>         >
>         > #vserver newdeb start
>         > Starting enhanced syslogd: rsyslogd.
>         > /usr/local/etc/vservers/newdeb/scripts/post-start: line 1:
>         !/bin/bash: No
>         > such file or directory
>         >
>         > An error occured after executing the vserver startup sequence.
>         This
>         > means that some processes may exist in the created context and the
>         > manual execution of
>         >
>         >   /usr/local/sbin/vserver '/usr/local/etc/vservers/newdeb' stop
>         >
>         > is recommended to fix this.
>         >
>         > # cat post-start
>         > !/bin/bash
> 
>         #!/bin/bash
> 
>         http://en.wikipedia.org/wiki/Shebang_(Unix)
>         <http://en.wikipedia.org/wiki/Shebang_%28Unix%29>
> 
>         :-)
> 
> 
>     Oh! My bad. Nice catch.
> 
> 
>         > echo "In post start"
>         >
>         > #ls /vservers/newdeb/bin/ | grep bash
>         > bash
>         >
>         > Not sure what I am missing!!
>         >
>         > Also, I configured cgroup in /etc/fstab and after restart am
>         not able to
>         > find /dev/cgroup directory at all.
>         >
>         > none                    /cgroup                 cgroup
>          defaults        0
>         > 0    (I need this for lxc)
>         > none                    /dev/cgroup                 cgroup
>          defaults
>         > 0 0
>         >
>         > # ls -l /dev/cgroup
>         > ls: cannot access /dev/cgroup: No such file or directory
> 
>         mkdir /dev/cgroup
> 
>         or if your /dev is managed by udev, then you probably want to
>         tell udev to
>         create that directory every start-up.  see
>         http://linux-vserver.org/util-vserver:Cgroups for how to do it
>         at least
>         under debian lenny (ie "mkdir /lib/udev/devices/cgroup").
> 
> 
>     I had earlier created /dev/cgroup but as it disappeared after
>     reboot. Now I don't see that issue but after the udev suggestion in
>     the above wiki (I use fedora 12 that uses udev).
> 
>     I still can't get it to work :-(
> 
>     [root@1-fedora ~]# vserver newdeb start
>     /usr/local/lib/util-vserver/vserver.functions: line 1506:
>     /dev/cgroup/newdeb/tasks: No such file or directory
> 
> 
>     Failed to start vserver 'newdeb'
> 
>     [root@1-fedora ~]# mount | grep cgroup
>     none on /cgroup type cgroup (rw)
>     vserver on /dev/cgroup type cgroup (rw)
> 
>     I do see files under /dev/cgroup.
> 
>     [root@guhan-fedora dev]# ls -l /usr/local/etc/vservers/.defaults/cgroup
>     total 0
>     [root@guhan-fedora dev]# ls -l /lib/udev/devices/cgroup
>     total 0
> 
>     One interesting thing I found is : while /dev/cgroup/newdeb/tasks
>     does not exist, I can see that /dev/cgroup/<pid>/tasks exists where
>     pid "seems" to be the pid of "vserver newdeb start" command.
> 
>     --Nirmal
> 
>      
> 
> 
>         > I can find /cgroup though but looks like vserver would need
>         /dev/cgroup
>         > (atleast I don't find my guest at /cgroup when it is running).
>         >
>         > Please help.
>         >
>         > Thanks,
>         > Nirmal
>         >
> 
>         corey
>         --
>         undefined@pobox.com <mailto:undefined@pobox.com>
> 
> 
> 
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iQEcBAEBAgAGBQJMFcy3AAoJEDFLYVOGGjgX7wwIANMfVOsRYieow68+NHi0c7F2
50eG9WeF09AEI+jdvkTByBleaWZgW2RI45yNbgADwH3dCYy8oFeMGGUHok8vul2Q
mRU2QUZsP2dgx01wj/1oQrm4MXbde/B14LxrJktQZAVgU+cKfVIknYtNogPTffk2
BH3eKSWZxOyAt5Z8mAICR5Fel4hbneC8bz1WXA6ElJKIjHPVm1x2D8bKRg7W1e6g
Yfce6iUDmVx9/AMHULbMgihq6UipBsituqmcN17fFtYd402UFzwBAN5NZzP1eBu+
4JHhXU1hEDeIR/XddCLjcO95jPY1pXhgUdzYpNJh8HEtQbvskl3W3VtaKOsreQA=
=J6y2
-----END PGP SIGNATURE-----