Removing kernel from OpenVZ Container

When I recently upgraded an OpenVZ container in-situ over SSH, I had a few issues with the upgrade path. One of these was that the upgrade process called for the installation of a new kernel, however a container doesn’t need one and in my case couldn’t handle installing one either and thus caused the upgrade process to error out.

The fix was to force remove the kernel, both from the dpkg directory structure (in this case I copied the files to /tmp/ just in case) and using dpkg it’s self. The following commands as root:

mv /var/lib/dpkg/info/linux-image-3.2.0-58-generic.* /tmp/
dpkg --remove --force-remove-reinstreq linux-image-3.2.0-58-generic

Resuming the dist-upgrade after this process was a success

   

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