[Bug 1891867] Re: zfs not correctly imported at boot

[Balint Reczey]

** Package changed: systemd (Ubuntu) => zsys (Ubuntu)

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https://bugs.launchpad.net/bugs/1891867

Title:
  zfs not correctly imported at boot

Status in zsys package in Ubuntu:
  New

Bug description:
  On a fresh and up-to-date Ubuntu 20.04 amd64 installation I configured
  two encrypted partitions on the same hdd. On these I created a
  stripped zpool. After login I can import and mount the pool without
  problems, but the at-boot import fails after the first partitions is
  available and never tried again.

  zpool version:
  zfs-0.8.3-1ubuntu12.2
  zfs-kmod-0.8.3-1ubuntu12.2
  uname -a:
  Linux hostname 5.4.0-40-generic #44-Ubuntu SMP Tue Jun 23 00:01:04 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
  systemd --version
  systemd 245 (245.4-4ubuntu3.2)
  +PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid

  Relevant logs:
  Aug 17 07:12:25 hostname kernel: sd 1:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.82 TiB)
  Aug 17 07:12:25 hostname kernel: sd 1:0:0:0: [sdb] Write Protect is off
  Aug 17 07:12:25 hostname kernel: sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
  Aug 17 07:12:25 hostname kernel: sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
  Aug 17 07:12:25 hostname kernel:  sdb: sdb1 sdb2
  Aug 17 07:12:25 hostname kernel: sd 1:0:0:0: [sdb] Attached SCSI disk
  Aug 17 07:12:25 hostname systemd[1]: zfs-import-cache.service: Found ordering cycle on cryptsetup.target/start
  Aug 17 07:12:25 hostname systemd[1]: zfs-import-cache.service: Found dependency on systemd-cryptsetup at vol\x2dswap_crypt.service/start
  Aug 17 07:12:25 hostname systemd[1]: zfs-import-cache.service: Found dependency on systemd-random-seed.service/start
  Aug 17 07:12:25 hostname systemd[1]: zfs-import-cache.service: Found dependency on zfs-mount.service/start
  Aug 17 07:12:25 hostname systemd[1]: zfs-import-cache.service: Found dependency on zfs-import.target/start
  Aug 17 07:12:25 hostname systemd[1]: zfs-import-cache.service: Found dependency on zfs-import-cache.service/start
  Aug 17 07:12:25 hostname systemd[1]: zfs-import-cache.service: Job cryptsetup.target/start deleted to break ordering cycle starting with zfs-import-cache.service/start
  Aug 17 07:12:25 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-mount.service/start
  Aug 17 07:12:25 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-import.target/start
  Aug 17 07:12:25 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-import-cache.service/start
  Aug 17 07:12:25 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-mount.service/start
  Aug 17 07:12:25 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-import.target/start
  Aug 17 07:12:25 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-import-cache.service/start
  Aug 17 07:12:26 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-mount.service/start
  Aug 17 07:12:26 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-import.target/start
  Aug 17 07:12:26 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-import-cache.service/start
  Aug 17 07:12:26 hostname systemd[1]: Starting Cryptography Setup for sdb1_crypt...
  Aug 17 07:12:26 hostname systemd[1]: Starting Cryptography Setup for sdb2_crypt...
  Aug 17 07:12:26 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-mount.service/start
  Aug 17 07:12:26 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-import.target/start
  Aug 17 07:12:26 hostname systemd[1]: cryptsetup.target: Found dependency on zfs-import-cache.service/start
  Aug 17 07:12:32 hostname systemd[1]: Finished Cryptography Setup for sdb2_crypt.
  Aug 17 07:12:32 hostname systemd[1]: Reached target Block Device Preparation for /dev/mapper/sdb2_crypt.
  Aug 17 07:12:32 hostname zpool[1887]: cannot import 'sdb': no such pool or dataset
  Aug 17 07:12:32 hostname zpool[1887]:         Destroy and re-create the pool from
  Aug 17 07:12:32 hostname zpool[1887]:         a backup source.
  Aug 17 07:12:32 hostname systemd[1]: zfs-import-cache.service: Main process exited, code=exited, status=1/FAILURE
  Aug 17 07:12:32 hostname systemd[1]: zfs-import-cache.service: Failed with result 'exit-code'.
  Aug 17 07:12:34 hostname systemd[1]: Finished Cryptography Setup for sdb1_crypt.
  Aug 17 07:12:34 hostname systemd[1]: Reached target Block Device Preparation for /dev/mapper/sdb1_crypt.

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