Is it possible to keep one VM running while updating Proxmox VE from 8 to 9?
- Thread starter left4pve
- Start date
While for me it smells like bad practice, yes, a running KVM process (= a VM) should keep running during execution of apt full-upgrade. Only after full-upgrade has finished you need to reboot.
What I always do (since the dark ages of unreliable connections) is to run "apt -d -y full-upgrade" in beforehand. This downloads all required packages without installing anything. Usually the "full-upgrade" can happen afterwards without any connectivity.
An additional safeguard for a risky system manipulation (which an upgrade from 8 to 9 may be) is to set a system wide checkpoint, at least if you are using ZFS:
Another approach may be to have a local, caching proxy in the data-flow chain - possibly https://pom.proxmox.com/
Disclaimer: I can not guarantee anything!
What I always do (since the dark ages of unreliable connections) is to run "apt -d -y full-upgrade" in beforehand. This downloads all required packages without installing anything. Usually the "full-upgrade" can happen afterwards without any connectivity.
An additional safeguard for a risky system manipulation (which an upgrade from 8 to 9 may be) is to set a system wide checkpoint, at least if you are using ZFS:
man zpool-checkpoint . Another approach may be to have a local, caching proxy in the data-flow chain - possibly https://pom.proxmox.com/
Disclaimer: I can not guarantee anything!
I am in a similar situation. I have a spare router but I've not needed it. Having no PVE storage on the system disk makes for a simple image of the entire system disk (<5GB) for peace of mind. Then
apt update && apt dist-upgrade- Modify apt sources
apt update && apt dist-upgrade --download-only- Reboot with
systemd.mask=pve-guestsappended to default grub cmdline. apt dist-upgrade- Reboot and sort out issues, if any.