URL:
<https://savannah.gnu.org/bugs/?61688>
Summary: grub-mkconfig not using correct subvol output for
root os on BTRFS subvol
Project: GNU GRUB
Submitted by: perkinsms
Submitted on: Thu 16 Dec 2021 10:56:34 PM UTC
Category: Configuration
Severity: Major
Priority: 5 - Normal
Item Group: Software Error
Status: None
Privacy: Public
Assigned to: None
Originator Name: Michael Perkins
Originator Email: perkin...@gmail.com
Open/Closed: Open
Release:
Release: 2.02
Discussion Lock: Any
Reproducibility: Every Time
Planned Release: None
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Details:
This is for grub-mkconfig 2.06
What happened:
Using grub-mkconfig to produce a grub.cfg file for a system with
## Arch Linux root partition
/dev/nvme0n1p4 / btrfs subvol=/@
## Manjaro root partition
/dev/nvme0n1p3 /mnt btrfs subvol=/@
This produces the correct output for the Arch partition - finding all the
kernels in /boot and configuring them with the correct rootflags=subvol=@ and
the paths to the initrd and kernel correct.
For the Manjaro partitions detected using os-prober, the menu entry is missing
the rootflags=subvol=@ and the paths to the initrd and kernel are written as
if the disk partition starts at / instead of /@/
What should happen:
# grub-mkconfig -o testfile
testfile should contain an entry for another linux system with a btrfs root
partition at subvol=@ with an entry that includes:
linux /@/boot/vmlinuz-5.15xxxxx root=UUID=xxxxxxxxxxx rw rootflags=subvol=@
etc.
initrd /@/boot/intel-ucode.img /@/boot/initramfs-5.15-x86_64.img
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