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OpenVZ CentOS template cache creation with vzpkgcache

Submitted by sandip on Mon, 07/07/2008 - 23:44

Following the instruction over at OpenVZ Wiki, I've had no problems with the installation and creation of templates prior to CentOS-5.2 on x86_64 systems. However, with the latest set of updates to CentOS-5.2, the vzpkgcache seems to have been broken as sysklogd is no longer being installed by default. Below is how I got it to work:

Note: edit /vz/template/centos/5/x86_64/config/minimal.list and append .x86_64 to all except for the addons packages. Then run:

# vzpkgcache -f centos-5-x86_64-minimal

which gives the below error at the end:

sed: can't read /etc/init.d/syslog: No such file or directory
ERROR: Script install-post failed

The solution was to edit "/vz/template/centos/5/x86_64/config/install-post" and set syslog and syslog.conf sed replacements with exit status of "0".

# Disable klogd
$VZCTL exec2 $VEID \
        "sed -i -e 's/daemon\\ klogd/passed\\ klogd\\ skipped/' \
                -e 's/killproc\\ klogd/passed\\ klogd\\ skipped/' \
                        /etc/init.d/syslog; exit 0"
...
# Disable fsync() in syslog
$VZCTL exec2 $VEID \
        "sed -i -e 's@\\\([[:space:]]\\\)\\\(/var/log/\\\)@\\\1-\\\2@' \
                /etc/syslog.conf; exit 0"

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vzpkgcache rpm module for 64 bit OS

Submitted by sandip on Wed, 10/20/2010 - 11:39.

vzpkgcache requires the below packages, else it will complain about "_rpm" module missing:

vzrpm44-python-4.4.1-22.5
vzrpm43-4.3.3-7_nonptl.6
vzrpm44-4.4.1-22.5
vzrpm43-python-4.3.3-7_nonptl.6

The above are all i386 packages. So on a 64 bit OS, vzrpm python needs to be fixed by copying over the appropriate rpm module:

For python-2.4:

cp /usr/lib64/python2.4/site-packages/rpm/_rpmmodule.so /usr/share/vzpkgtools/vzrpm44/lib/python2.4/site-packages/rpm/

Reference: wiki.openvz.org

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Disable kernel logger from starting up in OpenVZ container

Submitted by sandip on Thu, 04/30/2009 - 16:00.

Edit /etc/init.d/rsyslog and comment out start and stop of rklogd (kernel logger which is not required in VE).

        echo
        echo -n $"Starting kernel logger: "
        #daemon rklogd $KLOGD_OPTIONS
        passed rklogd skipped $KLOGD_OPTIONS
        echo
        [ $RETVAL -eq 0 ] && touch /var/lock/subsys/rsyslog
        return $RETVAL
}
stop() {
        echo -n $"Shutting down kernel logger: "
        #killproc rklogd
        passed rklogd skipped
        echo

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