Upgrading from Proxmox 8 to 9 issue: GRUB error: out of memory

I recommend booting from a Debian 13 Live image, but any other live Linux distribution should work just fine.
 
Maybe interesting. On a PBS, now running V4 ist the same hardware, same BIOS and the latest grub with no problem... Whats the difference...?
 
I‘m glad that the chroot-method worked for you :cool:
I would keep track on the Bug-Report in Bugzilla. If a new grub version is released, i‘ll test it and report back there.
 
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and if I don’t have lvm, then grub-efi-amd64 is not needed with grub-pc-bin will everything work the same?