I remember it as a frustrating experience until I figured out how to boot all the operating systems installed from GRUB.
I remember I finally switched to the UID mechanism cause booting failed when I forgot an external hard disk connected to the computer that lead to change in my second drive device. Regards. Ramiro. El lun, 28 sept 2026 a las 10:03, RVP (<[email protected]>) escribió: > > On Mon, 28 Sep 2026, Jeff wrote: > > > I tried setting it to the UUID of my EFI partition, but after running > > grub-mkconfig, no new entry appeared in my grub menu. > > > > Well, it's not actually the EFI UUID for VFAT/DOS partitions. What grub wants > for these is the `Volume ID'. You can get this if you run `lsblk -f'. > > (It's very irritating, and not really documented clearly in the grub docs.) > > -RVP
