[Bug 1974598] [NEW] upgrade from 20.04 to 22.04 failed

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do-release-upgrade seems to have failed on grub-efi, wondering if it
choked on my config; attached logs as per error message.

System was left in bootable, runnable state, but a zpool was blown away.

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system pools and one pool on NVMe were ok:

sribe at sribe000:~$ sudo zpool status
  pool: bpool
 state: ONLINE
  scan: scrub repaired 0B in 0 days 00:00:01 with 0 errors on Sun May  8 00:24:02 2022
config:

	NAME                                               STATE     READ WRITE CKSUM
	bpool                                              ONLINE       0     0     0
	  mirror-0                                         ONLINE       0     0     0
	    ata-SuperMicro_SSD_SMC0515D90120D212004-part2  ONLINE       0     0     0
	    ata-SuperMicro_SSD_SMC0515D94819DQL3014-part2  ONLINE       0     0     0

errors: No known data errors

  pool: pg_pool
 state: ONLINE
  scan: scrub repaired 0B in 0 days 00:00:15 with 0 errors on Sun May  8 00:24:16 2022
config:

	NAME                                                 STATE     READ WRITE CKSUM
	pg_pool                                              ONLINE       0     0     0
	  mirror-0                                           ONLINE       0     0     0
	    nvme-INTEL_SSDPELKX010T8_PHLJ0081015R1P0I-part1  ONLINE       0     0     0
	    nvme-INTEL_SSDPELKX010T8_PHLJ008100M71P0I-part1  ONLINE       0     0     0

errors: No known data errors

  pool: rpool
 state: ONLINE
  scan: scrub repaired 0B in 0 days 00:00:11 with 0 errors on Sun May  8 00:24:13 2022
config:

	NAME                                               STATE     READ WRITE CKSUM
	rpool                                              ONLINE       0     0     0
	  mirror-0                                         ONLINE       0     0     0
	    ata-SuperMicro_SSD_SMC0515D90120D212004-part3  ONLINE       0     0     0
	    ata-SuperMicro_SSD_SMC0515D94819DQL3014-part3  ONLINE       0     0     0

errors: No known data errors

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but an archive pool on HDD is fubar:

sribe at sribe000:~$ sudo zpool import
   pool: zp_repo
     id: 11719108999789418570
  state: FAULTED
 status: The pool metadata is corrupted.
 action: The pool cannot be imported due to damaged devices or data.
	The pool may be active on another system, but can be imported using
	the '-f' flag.
   see: http://zfsonlinux.org/msg/ZFS-8000-72
 config:

	zp_repo                                              FAULTED  corrupted data
	logs
	  mirror-1                                           ONLINE
	    nvme-INTEL_SSDPELKX010T8_PHLJ0081015R1P0I-part2  ONLINE
	    nvme-INTEL_SSDPELKX010T8_PHLJ008100M71P0I-part2  ONLINE

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the pool is not active on another system and import with -f fails

Fortunately, reverting to a snapshot of the system before the failed
upgrade brought the zpool back. I have a pretty customized ZFS setup,
including tweaks to /usr/share/initramfs-tools/scripts/zfs--so it might
be the case that I will never be able to use the automatic upgrade.

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bot-comment
-- 
upgrade from 20.04 to 22.04 failed
https://bugs.launchpad.net/bugs/1974598
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