Ubuntu 20.04.1's Installer ignores user choice as to where to put the bootloader

Asked by Doriphor on 2020-10-05

When running Ubuntu 20.04.1's installer, the user has the choice to select a drive or partition on which the installer will put the bootloader. At least on a UEFI system, it will completely ignore that choice if there is another drive that has an EFI partition on it.

In my case, I'm trying to install GRUB on /dev/sdb, but the installer will always put GRUB on /dev/sda no matter what I tell it, even if I manually create the partitions (including a 500MB EFI partition) and manually select the bootloader drive.

Is this normal? Should this be reported as a bug? Why is the user prompted to make a choice if the choice will then be completely ignored?

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I suggest you report a bug

Bernard Stafford (bernard010) said : #3

Try going to Boot Repair -> Advanced Options -> Grub location -> Check Mark /box - Separate /boot/efi partition -> /dev/sdb (from the drop down box)-> Click - Apply. See if this will change your Grub location.

Doriphor (doriphor) said : #4

Bernard, Ubuntu 20.04 doesn't seem to have boot repair anymore

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