Bug 489624 – >=sys-kernel/dracut-031 - usrmount module is not included when needed

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Alexander Tsoy 2013-10-27 20:57:05 UTC]

1. For systemd users.
Since dracut-031 usrmount module is not included in initramfs. I guess this should break setups with separate /usr + systemd + dracut initramfs without systemd module. This issue has been introduced in commit [1] and it haven't been fixed even by commit [2], because on gentoo /sbin/init is not a symlink to systemd binary.

2. For openrc users.
dracut's upstream have opinion that if /sbin/init is not on /usr, then /usr should be mounted by init and not by initramfs [3]. AFAIK our openrc devs expects that /usr is mounted by initramfs: for example, openrc lauches udev before mounting /usr ("localmount" service).

[1] http://git.kernel.org/cgit/boot/dracut/dracut.git/commit/?id=1a1c80febe939733161d52ab80963e8cef9ebc62
[2] http://git.kernel.org/cgit/boot/dracut/dracut.git/commit/?id=0106da599a227cf1c28c3648b7e77985f617b878
[3] http://article.gmane.org/gmane.linux.kernel.initramfs/3453

[Comment 1 Alexander Tsoy 2013-10-28 12:35:59 UTC]

(In reply to Alexander Tsoy from comment #0)
> 2. For openrc users.
> dracut's upstream have opinion that if /sbin/init is not on /usr, then /usr
> should be mounted by init and not by initramfs [3]. AFAIK our openrc devs
> expects that /usr is mounted by initramfs: for example, openrc lauches udev
> before mounting /usr ("localmount" service).
> 

Actually the same problem should be with systemd installed into "/". So this looks like a real dracut bug.

[Comment 2 Alexander Tsoy 2013-11-20 20:15:46 UTC]

In recent dracut versions systemd module is always included if systemd is installed on the system. So systemd users are not affected by this bug.

[Comment 3 Alexander Tsoy 2013-11-20 20:16:49 UTC]

Created attachment 363696 [details, diff]
dracut-034-fix-usrmount.patch

[Comment 4 Alexander Tsoy 2013-12-11 13:57:26 UTC]

Fixed in git:
http://git.kernel.org/cgit/boot/dracut/dracut.git/commit/?id=ded4c82acedb373ed4393b69a9683c6bee38ff48

[Comment 5 Amadeusz Żołnowski (RETIRED) 2013-12-14 16:09:37 UTC]

Thanks Alexander!

+*dracut-034-r2 (14 Dec 2013)
+
+  14 Dec 2013; Amadeusz Żołnowski <[e-mail]> +dracut-034-r2.ebuild,
+  +files/034-0013-usrmount-always-install.patch:
+  Committing on behalf of Alexander Tsoy <[e-mail]>.
+  Fixes bug #489624 and bug #491778.
+
+  usrmount module used to be not always installed when it was needed.
+