EFI booting Ubuntu image to grub removes existing boot entries and makes system unbootable
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
grub2 (Ubuntu) |
Triaged
|
Undecided
|
Steve Langasek |
Bug Description
I'm using xenial image 20160323 on an XPS 13 2015 (9343). Booting (to grub) with the image on a USB stick is enough to make my previously installed system unbootable!
1. Have the system in EFI mode and an installed Ubuntu system. I have Secure Boot on too. Make sure the installation boots properly.
2. Burn image to USB drive. I used dd, but doubt that matters.
3. Insert USB drive into "target" system.
4. (Re)boot it, select to boot from the USB drive if it doesn't do that for you.
5. See the grub menu from the image.
6. Don't choose anything. Turn the system off.
7. Take the USB stick out.
8. Turn the system back on.
9. See "No bootable devices fdund."
Obviously at "9" it should instead boot into your previous installation, since you didn't change anything.
You can repair the system by entering setup (F2) and re-adding the boot entry. Settings -> General -> Boot Sequence -> Add Boot Option. Click the "…" next to File Name and pick EFI/ubuntu/
summary: |
- EFI booting Ubuntu image to grub removes existing boot entries + EFI booting Ubuntu image to grub removes existing boot entries and makes + system unbootable |
description: | updated |
affects: | ubuntu → grub2 (Ubuntu) |
description: | updated |
description: | updated |
This bug has been reported on the Ubuntu ISO testing tracker.
A list of all reports related to this bug can be found here: iso.qa. ubuntu. com/qatracker/ reports/ bugs/1560973
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