On 12/5/18 4:03 AM, François Patte wrote:
1- déc. 05 11:33:05 dipankar systemd[1]: systemd-modules-load.service:
Main process exited, code=exited, status=1/FAILURE
déc. 05 11:33:05 dipankar systemd[1]: systemd-modules-load.service:
Failed with result 'exit-code'.
déc. 05 11:33:05 dipankar systemd[1]: Failed to start Load Kernel Modules.
-- Subject: L'unité (unit) systemd-modules-load.service a échoué

This error occurs several times during the boot process.

You can ignore this.  I think I get these messages on all systems.

2- A lot of errors about lvm also occur:

  déc. 05 11:33:06 dipankar lvm[1178]:   3 logical volume(s) in volume
group "systeme" now active
déc. 05 11:33:06 dipankar lvm[1178]:   WARNING: Device mismatch detected
for debian/deb-racine which is accessing /dev/md127 instead of /dev/sda2.
déc. 05 11:33:06 dipankar lvm[1178]:   device-mapper: reload ioctl on
(253:0) failed: Périphérique ou ressource occupé<---- busy
déc. 05 11:33:06 dipankar lvm[1178]:   Failed to suspend debian/deb-racine.
déc. 05 11:33:06 dipankar kernel: device-mapper: table: 253:0: linear:
Device lookup failed
déc. 05 11:33:06 dipankar kernel: device-mapper: ioctl: error adding
target to table

This is where the problem is. Someone ran into a similar problem at work. I think it has to do with the RAID metadata type. lvm is detecting the volumes on the partition before the RAID is setup, so lvm tries to use the partition. Then it finds duplicates on the other RAID partition and doesn't like that.

Since all your lvm volumes are only on RAID volumes, you could try modifying the /etc/lvm/lvm.conf file. Find the global_filter option and add the following line:
global_filter = [ "r|sd|" ]

Does it work if you boot one of the F28 kernels from the boot menu? If not, you will need to use an F28 (or earlier) live boot to modify the file. I expect you will also need to regenerate the initramfs. I would suggest using the network install image in rescue mode as that makes it easier to chroot and work on the installed system. Be aware that if you do this, it will automatically cause an selinux relabel of the entire filesystem on next boot. You can avoid this by deleting the /.autorelabel file, but make sure you didn't modify any file labels.
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