Bug#959228: grub2: Grub2 V2.04-7 does not recognize BTRFS RAID1c4 filesystem

[Steve McIntyre]

On Fri, May 01, 2020 at 10:11:23AM +0200, waxhead wrote:
>Source: grub2
>Version: 2.04-7
>Severity: important
>
>Dear Maintainer,
>
>*** Reporter, please consider answering these questions, where appropriate ***
>
>   * What led up to the situation?
>
>    I waited for grub 2.04-7 to support the BTRFS RAID1c3/RAID1c4 features.
>    it found that it had migraded to testing this morning, did an apt update + apt upgrade to get it.
>    Made sure I ran update-grub, and btrfs balance start -mconvert=raid1c4 /
>    also checked with apt-get source grub2 , browsed the btrfs.c to check , all the raid1c34 parts
>    seemed to be in place.
>    ran systemd reboot and grub failed with unknown filesystem.
>
>   * What exactly did you do (or not do) that was effective (or
>     ineffective)?
>
>   Fired up the latest testing live cd and rebalanced my rootfs back to btrfs raid1

Try again next Monday - the live images are only updated weekly. Grub
version 2.04-7 only just migrated to testing in the last 24h...

-- 
Steve McIntyre, Cambridge, UK.                                steve at einval.com
"We're the technical experts.  We were hired so that management could
 ignore our recommendations and tell us how to do our jobs."  -- Mike Andrews