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Question regarding multipath renaming during boot

From: Diego P Domingos
Subject: Question regarding multipath renaming during boot
Date: Wed, 10 Jun 2020 12:24:56 +0000

   Hi all,

   I have a system (SLES15-SP2) that, during the boot, the multipath disks
   are being renamed, i.e, we can see the following message:
localhost multipathd[5476]: 36001738c7c805d0c0000000000013593: rename 36001738c7
c805d0c0000000000013593 to mpathd

The boot process is fine, however, when I try to run a simple grub2-mkconfig I g
et the following:

# grub2-mkconfig -o /boot/grub2/grub.cfg
/usr/sbin/grub2-probe: error: failed to get canonical path of `/dev/mapper/36001
It seems the grub is trying to probe the old disk name instead the new one. I di
d some investigations and found that it seems grub is trying to get the
information from /proc/self/mountinfo - which still has the old name there.

I was wondering if is there anything I can do with grub itself to avoid this pro
blem. Have you ever faced this problem before?


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