Xen PV vm recovery

[Alessandro 123]

Ok, i've forgot to install grub on a PV machine coming from XenServer.
For strange reason (not really strange, XenServer is garbage) , i'm unable to reboot the VM on the old host and I have a fully migrated VM on PVE that doesn't boot because there isn't grub installed (I think, I'm getting error 13 trying to boot)

Any solution ?

 

[MarkusF]

You could boot a live usb inside the vm and install grub via chroot.

Links:
https://help.ubuntu.com/community/Grub2/Installing#via_ChRoot
https://wiki.gentoo.org/wiki/Chroot
https://wiki.archlinux.org/title/chroot#Using_chroot

 

[Alessandro 123]

Yes, i did it in this way.