Re: [gentoo-user] Systemd and lvm

[Robin Atwood <robin.atwood@attglobal.net>]

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On Sunday 06 January 2013, Canek Peláez Valdés wrote:
> On Sat, Jan 5, 2013 at 7:36 AM, Robin Atwood <robin.atwood@attglobal.net> 
wrote:
> > On Friday 04 Jan 2013, Canek Peláez Valdés wrote:
> >> On Fri, Jan 4, 2013 at 10:11 AM, Robin Atwood
> >> 
> >> <robin.atwood@attglobal.net> wrote:
> >> > Having observed all the ranting, I thought I would try systemd on a
> >> > laptop. It actually seems to work quite well and it is a lot faster.
> >> > However I am having trouble getting my LVM partitions mounted. I
> >> > installed the LVM service unit from the Gentoo Wiki but it never
> >> > completes, timing-out on a job that mounts /var. The VG is actually
> >> > created by an initramfs and when systemd dumps you out to the
> >> > emergency shell you can use lvs to see the volumes, /dev/mapper has
> >> > all the correct devices and "dmsetup ls" shows the LVs. In fact,
> >> > everything appears as it should, the partitions just don't get
> >> > mounted. I circumvented this by putting "mount -a" in the lvm.service
> >> > unit, which then completes and the mount jobs time-out. Everything
> >> > seems to be OK but it is a bit of a kludge. One thing I notice is:
> >> > 
> >> > 
> >> > 
> >> > # udevadm info -p /dev/mapper/vg00-rootfs -q all
> >> > 
> >> > syspath not found
> >> > 
> >> > 
> >> > 
> >> > Udev seems not to know about the LVs. Any ideas?
> >> 
> >> How did you create your initramfs? Have you tried dracut, with
> >> DRACUT_MODULES="lvm"?
> >> 
> >> Regards.
> > 
> > I always use genkernel with LVM=YES in genkernel.conf. There is a thread
> > about the udev issue at
> > http://forums.gentoo.org/viewtopic-p-6837888.html . I tried the
> > suggested work-around but it made no difference, I must still use "mount
> > - a".
> 
> I've never used genkernel. You could try dracut; its mandatory
> dependencies are minimal, and it's actually designed to create an
> initramfs, not like genkernel, where the functionality was added as an
> afterthought.
> 
> Another option is to roll your own initramfs, like the first responder
> in the forums thread.
> 
> Good luck.

Maybe I will try dracut but I suspect the problem lies with systemd.

-Robin
-- 
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Robin Atwood.

"Ship me somewheres east of Suez, where the best is like the worst,
 Where there ain't no Ten Commandments an' a man can raise a thirst"
         from "Mandalay" by Rudyard Kipling
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