The multipath service on install/upgrade needs to be restarted (as any other service) to pick up the new code.
In your case that failed, from your log: Feb 13 01:30:16 goldenk modprobe[32552]: modprobe: WARNING: Module dm-multipath not found in directory /lib/modules/5.4.10-x86_64-linode132 ... Feb 13 01:30:16 goldenk multipathd[32553]: DM multipath kernel driver not loaded here we can see that you are missing modules for your kernel. But you have a linode specific kernel not produced by Ubuntu so I can't help you with that. A normal ubuntu kernel would come with a linux-modules-<version>-generic package that would hold the modules you are missing, for example (depends on the system and kernel version): $ dpkg -S /lib/modules/5.3.0-26-generic/kernel/drivers/scsi/device_handler/scsi_dh_rdac.ko /lib/modules/5.3.0-26-generic/kernel/drivers/md/dm-multipath.ko linux-modules-5.3.0-26-generic: /lib/modules/5.3.0-26-generic/kernel/drivers/scsi/device_handler/scsi_dh_rdac.ko linux-modules-5.3.0-26-generic: /lib/modules/5.3.0-26-generic/kernel/drivers/md/dm-multipath.ko I'm sorry, but as long as you stick with that kind of kernel (not sure if you have to on that cloud) you need to sort this out with Linode. ** Changed in: multipath-tools (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1863069 Title: package multipath-tools 0.7.9-3ubuntu6 failed to install/upgrade: installed multipath-tools package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/1863069/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs