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Re: [dm-devel] Volume group / volumes not activated at boot



Dne 23.10.2013 17:05, David Rosenstrauch napsal(a):
For several months now, my server has be been failing to activate all volume
groups / volumes at boot.  My server has 3 PV's, 3 VG's, and 4 LV's.  But for
some reason only 3 of the 4 LV's are activated after boot.

I can subsequently activate the VG manually (vgchange -ay vg2) and then mount
the LV.  But the fact that the LV never activates automatically at boot time
means that I can't add it in the fstab to so that it mounts at boot.

The start of the problem seems to coincide with when my distro (Arch Linux)
moved to using lvmetad for device discovery.  But the distro's LVM package
maintainer has reviewed my logs and can't see any reason why the volume group
is not getting activated.

IMHO in normal case distro should ensure that only devices needed for the
system are activated on the boot.

So if you need all your volumes from a VG active - just add somewhere in your
boot sequence    'vgchange -ay' if you need all LVs active.

There is also recently a support for 'autoactivated' LVs - but this needs lvmetad daemon running in your system.

Zdenek


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