I would like to use a CentOS VM for a mirrored full backup of my CentOS mail server. Both are the same version and are up-to-date. I have found that without excluding certain directories the VM backup has kernel panic attacks and fails to load.

I use the following command to start the process:

rsync -avz -Kl -p --numeric-ids --exclude-from=/rsync_exclude.txt -e 'ssh -2 -c blowfish-cbc' user@my.domain.com:/ /


  1. Will there be any issues with the command being entered above?
  2. Which directories should I include in my "rsync_exclude.txt" to prevent issues on the VM backup?

I don't think this is the complete answer, but some are:

# The following are stolen from Womble:
  • I still get the kernel panic when excluding the mentioned folders – ricbax Nov 18 '09 at 1:09

Add /var/cache, /var/tmp, and /var/spool to Kyle's list.

  • 1
    You could have just put that in a comment on his post, I guess! – Suppressingfire Nov 17 '09 at 16:23
  • 1
    Or he could have taken all of mine, and then I get no points. We like to share points :-) – Kyle Brandt Nov 17 '09 at 16:28
  • 1
    I could have done a lot of things. – womble Nov 17 '09 at 16:34

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