Upgrading OS of containers


Active Member
Aug 4, 2018
I have some proxmox containers running Debian 10, on a machine with PVE 6.4.

Now I need to upgrade those to Debian 11 and then 12 (because I need certain recent packages). Can I do it with PVE 6.4? I ask because I know containers use the host's kernel, so I am not sure how this works.

Or should I necessarily upgrade PVE first?

(Yes, I know that PVE 6.4 is soon to be EOL and should be upgraded too, but I would defer that operation for a little time if it is possible).

PVE 6.4 is not soon to be EOL, it has been EOL for already a year now! The latest PVE 7.4 does support Debian 12 containers but 6.4 does not, and I'm not sure if it supports Debian 11 containers. Does it provide a Debian 11 template? Then it probably does. Always make a backup before upgrading.
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Reactions: giovvv
Whoa! I misread the warning in the UI. I am off by one year :)

If I upgrade PVE, after that will I be able to boot the old containers to launch the debian upgrade?


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