Public bug reported:
I have 2 Ubuntu 64-Bit installations on 2 different partitions.
After booting into the 2nd installation, I have changed in /etc/default/grub:
GRUB_DISTRIBUTOR="Ubuntu-64"
After grub-install and update-grub I got new .efi files in
/boot/efi/EFI/ubuntu-64 and a new /boot/grub/grub.cfg and
/boot/efi/EFI/ubuntu-64/grub.cfg refers to the partition of the 2nd
installation.
Now /boot/grub/grub.cfg of the 2nd installation is corrupted (see attached
grub_2.cfg):
- There are some entries like:
menuentry 'Ubuntu 16.04.1 LTS (16.04) (auf /dev/sda8) (auf /dev/sda5)'
- Some of them don't define initrd.
I tried again after deleting /boot/grub/grub.cfg in the 1st installation
and got another corrupted one with similar errors (see attached
grub_1.cfg).
After booting into the 1st installation with update-grub I got similar
errors.
** Affects: grub2-signed (Ubuntu)
Importance: Undecided
Status: New
** Affects: multiboot (Ubuntu)
Importance: Undecided
Status: New
** Affects: os-prober (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "grub_2.cfg"
https://bugs.launchpad.net/bugs/1647495/+attachment/4787752/+files/grub_2.cfg
** Also affects: grub2-signed (Ubuntu)
Importance: Undecided
Status: New
** Also affects: os-prober (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1647495
Title:
Corrupted /boot/grub/grub.cfg with 2 UEFI boot menu entries
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