Re: [PATCH] btrfs: add "/dev/root" exception for device path update

[Qu Wenruo <quwenruo.btrfs@gmx.com>]

在 2026/9/14 00:05, Hanabishi 写道:
> I confirm that this patch fixes the '/dev/root' issue for me. Thank you.
> 
>> To be honest, this is a user space problem: no one should trust the
>> device path shown in mount, only the device number.
> There are too many userspace applications that simply don't know/care 
> about such edge cases.
> I'll try to report the situation where I can though.

Yes, too many userspace programs are not and should not even bothering 
checking the mount info.

But for tools that bother, they should know what they are doing, not 
only try to use the best tool/lib like libblkid, but also have a proper 
fallback plan.

GRUB itself is already so complex that quite people are getting rid of 
it, going much simpler solutions like systemd-boot.