[systemd-bugs] [Bug 84689] "Failed to determine block device of root file system: No such file or directory" on boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84689

--- Comment #4 from maxtram95 at gmail.com ---
(In reply to Lennart Poettering from comment #3)
> Hmm, so this appears to be a btrfs kernel bug. it should not return the
> useless "/dev/root" string as a volume device when asked via the
> BTRFS_IOC_DEV_INFO ioctl. it should instead return a proper device name,
> that we can actually make use of from userspace.
> 
> Could you please file a bug against btrfs/kernel, so that they fix what the
> ioctl returns?
> 
> Thanks!

Reported here: https://bugzilla.kernel.org/show_bug.cgi?id=89721

Though "/dev/root" is really device name used to mount root (and it resolves to
8:4 by blkdev_get_by_path on my system), even /proc/mounts contain /dev/sda4 as
root device name, so it's wrong to report "/dev/root" instead of "/dev/sda4".

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