Score:0

Booting from External SSD

to flag

I installed Ubuntu 22.04 LTS on my external SSD. I needed to create the partitions myself. Now, after copying *.efi from my GRUB installation, it still won't boot. I tried directly booting from bootx64.efi and grubx64.efi, to no avail. Windows advanced reboot also doesn't recognize it, as well as my UEFI/BIOS startup menu. Anyone know how to fix?

Esther avatar
es flag
is your efi partition marked as bootable? did you actually install a bootloader to the drive?
C.S.Cameron avatar
cn flag
See https://askubuntu.com/a/1403793/43926 for USB drive that boots both BIOS and UEFI
oldfred avatar
cn flag
You need both /EFI/ubuntu & /EFI/Boot as full install boots from /EFI/Boot/bootx64.efi using drive entry like live installer, but need the 3 line grub.cfg in /EFI/ubuntu to find the full grub in your install. did you update fstab with UUID of external drive's ESP? `lsblk -f` If UUID correct you can just reinstall grub `sudo grub-install` which will use all default parameters.
Dutch Slav avatar
to flag
I moved the `Boot` and `ubuntu` folders into a new `EFI` folder. Now my BIOS detects it's there, but it restarts when I tried to boot.
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.