How to reconfigure/resize rpool with proxmox setup DVD

[carsten2]

I hav e to resize the rpool an an existing installation which is on sda:

So I did:
zpool create rpoolnew /dev/sdb
zfs snapshot -r rpool@copy
zfs send -R rpool@copy | zfs recv rpoolnew -F

Now I want to boot into the debug mode of the proxmox 6.2 DVD and rename rpoolnew to rpool and make it bootable (set bootfs property and somehow make grub see it as the bootable root file system).

Can anyone help with the exact commands?
Side question: How to change keyboad layout in the debug mode of the DVD from US to DE?

 

[aaron]

It's not as easy. Are you sure you use Grub? See https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysboot

You can use the boot disk replacement guides to figure out how to clone the partition table and make the systems bootable.

If you boot with Grub you should check the wiki entry https://pve.proxmox.com/wiki/ZFS:_Tips_and_Tricks#Replacing_a_failed_disk_in_the_root_pool.

Should you boot with systemd-boot check out our documentation at the end of sub sub chapter 3.8.4 https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_zfs_administration