[Pkg-systemd-maintainers] About a problem with GRUB2 rescue images and /dev/disk/by-label

[Michael Stapelberg]

Hi Thomas,

Thanks for your mail. Answers inline.

Thomas Schmitt <scdbackup at gmx.net> writes:
> The reason is that the filesystem ID gets propagated from parent
> device sdb to partition device sdb1 and is not overwritten by
> the run of /sbin/blkid.
> In file
>   udev_204-5_amd64_deb/lib/udev/rules.d/60-persistent-storage.rules
Just to confirm that you are on the right track: that file is indeed
coming from the upstream udev package and therefore any changes should
be made upstream.

> Obviously, the variables ID_FS_LABEL_ENC and ID_FS_USAGE should
> not be copied from parent device to partition device, but only
I’m not sure if that is so obvious. I mean, yeah, it’s one way of fixing
it, but I personally can’t judge if there are any downsides by changing
this.

> A cross-post (not by me) from grub-devel list to linux-hotplug
> list did not yield any reaction:
>   http://www.spinics.net/lists/hotplug/msg05813.html
> although i tried to explain the background in a follow-up:
>   http://www.spinics.net/lists/hotplug/msg05814.html
> (2 weeks ago)
>
> Now i ponder how to motivate udev rule developers to look into
> this issue and hopefully fix it.
AFAICT, you can post udev patches on the systemd-devel mailing list:
http://lists.freedesktop.org/mailman/listinfo/systemd-devel

Note that sending a patch is the best way to get this fixed, or at least
encourage discussion about the change you are proposing to make.

If, after posting that patch and waiting for a couple of days, you still
have trouble reaching upstream, let me know and I can try to pull some
strings.

Thanks.

-- 
Best regards,
Michael