Re: [vserver] vserver configuation options

From: Nikolay Kichukov <hijacker_at_oldum.net>
Date: Mon 14 Jun 2010 - 07:31:19 BST
Message-ID: <4C15CCB7.6090003@oldum.net>

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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>
>
>
>
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Received on Mon Jun 14 07:32:01 2010

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