On 24/09/2017 20:37, David Denny wrote:
Dear BLFS,
I would be grateful for feedback on other's experience setting up LVM2
based on the BLFS instructions to determine if I've goofed somewhere,
or just hit a branch not covered.
I built my system based on LFS / BLFS. I've kept things pretty well
up to date and incrementally added a few things here and there.
I bought some big drives and am now working to implement LVM2 based on
the BLFS development version (9/23.)
I've built, tested and installed the LVM and associated software and
configured and populated several volumes, then rebooted.
On booting, the LVM volumes do not mount as they should. Note that my
boot / system isn't on the LVM volumes.
No errors are thrown, logs are clean. In fact, it seems that nothing
has happened at all. The system hangs at fstab processing and then
enters rescue state.
If I manually execute "lvchange -y a" then the drives will pop online
and mount perfectly. I can go to the multi-user state.
I was able to modify and install three of the systemd scripts that
come with LVM2 and modify one setting in lvm.conf to use lvmetad now
drives mount on boot. I'm not sure this is all I should do, but at
least the booting issue is addressed.
I do not see how the current software (udev rules, systemd units)
handles boot-up, and I would be grateful to understand if other people
are successful in having LVM go online at boot or not. If this is not
handled, I could offer some very simple redlines for consideration to
the BLFS write-up, otherwise I need to go find my problem.
Here are the configuration / versions I'm working with:
* BLFS Systemd development version, 9/22
* systemd-234
* BLFS systemd units, 20160602
* LVM2-2.02.171
* mdadm-4.0
* blfs-systemd-unit-20160602
* thin-provisioning from repository as of 9/22
I use SYSV and blfs bootscripts, and it seems LVM runs as it should. I
cannot help much with systemd. Sometimes, it may be needed to run pvscan
--cache -aay to make the logical volumes appear. But it is not needed
for my configuration.
Pierre
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