Proxmox 8 boot disk migration, HDD to SSD using dd - eviltoast

v !!! POST-MIGRATION EDIT !!! v

I shrunk the LVM partition by 5000 MiB and just ran dd overnight. I had to shuffle my boot-order around a bunch to find the one partition that would boot properly but it all just works.

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v !!! ORIGINAL POST !!! v

Hi! My Proxmox machine has 3 disks (see pic). I wish to migrate sdc to a 2TB SSD. I have LXCs on all drives and I would really like to avoid having to restart from backups. I don’t have any special configuration on my proxmox, it’s pretty clean and basic.

Is it safe to simply dd the old disk to the new one? I can’t find an explicit answer to this question that doesn’t also have a lot of other variables not relevant to me.

If not, what else can I do?

  • drkt@lemmy.dbzer0.comOPEnglish
    1·
    2 months ago

    The issue is that I can’t really fit all of the data somewhere else. Can I shove it onto the 4TB drive and then mount it on a new proxmox install and recover from there?

    The answer was a resounding no