[Bug 1860762] [NEW] Upgrade with zfs-on-root failures

[Seth Arnold]

Public bug reported:

I followed rlaager's howto for installing Ubuntu 18.04 LTS with ZFS root
(but used disco). I've also set up sanoid to perform periodic snapshots
of bpool (which stores /boot).

The upgrade from disco to eoan didn't go well:

[.. trimmed to fit in the comment box; more context in attachment ..]

/ubuntu at autosnap_2020-01-24_04:00:05_frequently
Found initrd image: initrd.img-5.3.0-29-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:00:05_frequently
Found linux image: vmlinuz-5.0.0-39-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
Found initrd image: initrd.img-5.0.0-39-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
Found linux image: vmlinuz-5.0.0-40-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
Found initrd image: initrd.img-5.0.0-40-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
Found linux image: vmlinuz-5.3.0-29-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
Found initrd image: initrd.img-5.3.0-29-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
Adding boot menu entry for EFI firmware configuration
done
Processing triggers for dbus (1.12.14-1ubuntu2) ...
Processing triggers for initramfs-tools (0.133ubuntu10) ...
update-initramfs: Generating /boot/initrd.img-5.3.0-29-generic
cryptsetup: ERROR: Couldn't resolve device rpool/ROOT/ubuntu
cryptsetup: WARNING: Couldn't determine root device
Error 24 : Write error : cannot write compressed block 
E: mkinitramfs failure cpio 141 lz4 -9 -l 24
update-initramfs: failed for /boot/initrd.img-5.3.0-29-generic with 1.
dpkg: error processing package initramfs-tools (--configure):
 installed initramfs-tools package post-installation script subprocess returned error exit status 1
Processing triggers for shim-signed (1.39+15+1533136590.3beb971-0ubuntu1) ...
Nothing to do.
Processing triggers for libgdk-pixbuf2.0-0:amd64 (2.40.0+dfsg-1build1) ...
Errors were encountered while processing:
 initramfs-tools
Exception during pm.DoInstall():  E:Sub-process /usr/bin/dpkg returned an error code (1)

Could not install the upgrades

The upgrade has aborted. Your system could be in an unusable state. A 
recovery will run now (dpkg --configure -a). 

Setting up initramfs-tools (0.133ubuntu10) ...
update-initramfs: deferring update (trigger activated)
Processing triggers for initramfs-tools (0.133ubuntu10) ...
update-initramfs: Generating /boot/initrd.img-5.3.0-29-generic
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/initramfs-tools.0.crash'
cryptsetup: ERROR: Couldn't resolve device rpool/ROOT/ubuntu
cryptsetup: WARNING: Couldn't determine root device
Error 24 : Write error : cannot write compressed block 
E: mkinitramfs failure cpio 141 lz4 -9 -l 24
update-initramfs: failed for /boot/initrd.img-5.3.0-29-generic with 1.
dpkg: error processing package initramfs-tools (--configure):
 installed initramfs-tools package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 initramfs-tools

Upgrade complete

The upgrade has completed but there were errors during the upgrade 
process. 

To continue please press [ENTER]

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: ubuntu-release-upgrader-core 1:19.10.15.4
ProcVersionSignature: Ubuntu 5.0.0-40.44-generic 5.0.21
Uname: Linux 5.0.0-40-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu8.3
Architecture: amd64
CrashDB: ubuntu
Date: Fri Jan 24 06:02:32 2020
PackageArchitecture: all
ProcEnviron:
 TERM=rxvt-unicode-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to eoan on 2020-01-24 (0 days ago)
VarLogDistupgradeAptclonesystemstate.tar.gz:
 Error: command ['pkexec', 'cat', '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'] failed with exit code 127: polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie
 Error executing command as another user: Not authorized
 
 This incident has been reported.
VarLogDistupgradeXorgFixuplog:
 INFO:root:/usr/bin/do-release-upgrade running
 INFO:root:No xorg.conf, exiting

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


** Tags: amd64 apport-bug dist-upgrade eoan

** Attachment added: "log"
   https://bugs.launchpad.net/bugs/1860762/+attachment/5322567/+files/log

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https://bugs.launchpad.net/bugs/1860762

Title:
  Upgrade with zfs-on-root failures

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  I followed rlaager's howto for installing Ubuntu 18.04 LTS with ZFS
  root (but used disco). I've also set up sanoid to perform periodic
  snapshots of bpool (which stores /boot).

  The upgrade from disco to eoan didn't go well:

  [.. trimmed to fit in the comment box; more context in attachment ..]

  /ubuntu at autosnap_2020-01-24_04:00:05_frequently
  Found initrd image: initrd.img-5.3.0-29-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:00:05_frequently
  Found linux image: vmlinuz-5.0.0-39-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
  Found initrd image: initrd.img-5.0.0-39-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
  Found linux image: vmlinuz-5.0.0-40-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
  Found initrd image: initrd.img-5.0.0-40-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
  Found linux image: vmlinuz-5.3.0-29-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
  Found initrd image: initrd.img-5.3.0-29-generic in rpool/ROOT/ubuntu at autosnap_2020-01-24_04:15:05_frequently
  Adding boot menu entry for EFI firmware configuration
  done
  Processing triggers for dbus (1.12.14-1ubuntu2) ...
  Processing triggers for initramfs-tools (0.133ubuntu10) ...
  update-initramfs: Generating /boot/initrd.img-5.3.0-29-generic
  cryptsetup: ERROR: Couldn't resolve device rpool/ROOT/ubuntu
  cryptsetup: WARNING: Couldn't determine root device
  Error 24 : Write error : cannot write compressed block 
  E: mkinitramfs failure cpio 141 lz4 -9 -l 24
  update-initramfs: failed for /boot/initrd.img-5.3.0-29-generic with 1.
  dpkg: error processing package initramfs-tools (--configure):
   installed initramfs-tools package post-installation script subprocess returned error exit status 1
  Processing triggers for shim-signed (1.39+15+1533136590.3beb971-0ubuntu1) ...
  Nothing to do.
  Processing triggers for libgdk-pixbuf2.0-0:amd64 (2.40.0+dfsg-1build1) ...
  Errors were encountered while processing:
   initramfs-tools
  Exception during pm.DoInstall():  E:Sub-process /usr/bin/dpkg returned an error code (1)

  Could not install the upgrades

  The upgrade has aborted. Your system could be in an unusable state. A 
  recovery will run now (dpkg --configure -a). 

  Setting up initramfs-tools (0.133ubuntu10) ...
  update-initramfs: deferring update (trigger activated)
  Processing triggers for initramfs-tools (0.133ubuntu10) ...
  update-initramfs: Generating /boot/initrd.img-5.3.0-29-generic
  ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/initramfs-tools.0.crash'
  cryptsetup: ERROR: Couldn't resolve device rpool/ROOT/ubuntu
  cryptsetup: WARNING: Couldn't determine root device
  Error 24 : Write error : cannot write compressed block 
  E: mkinitramfs failure cpio 141 lz4 -9 -l 24
  update-initramfs: failed for /boot/initrd.img-5.3.0-29-generic with 1.
  dpkg: error processing package initramfs-tools (--configure):
   installed initramfs-tools package post-installation script subprocess returned error exit status 1
  Errors were encountered while processing:
   initramfs-tools

  Upgrade complete

  The upgrade has completed but there were errors during the upgrade 
  process. 

  To continue please press [ENTER]

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: ubuntu-release-upgrader-core 1:19.10.15.4
  ProcVersionSignature: Ubuntu 5.0.0-40.44-generic 5.0.21
  Uname: Linux 5.0.0-40-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu8.3
  Architecture: amd64
  CrashDB: ubuntu
  Date: Fri Jan 24 06:02:32 2020
  PackageArchitecture: all
  ProcEnviron:
   TERM=rxvt-unicode-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to eoan on 2020-01-24 (0 days ago)
  VarLogDistupgradeAptclonesystemstate.tar.gz:
   Error: command ['pkexec', 'cat', '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'] failed with exit code 127: polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie
   Error executing command as another user: Not authorized
   
   This incident has been reported.
  VarLogDistupgradeXorgFixuplog:
   INFO:root:/usr/bin/do-release-upgrade running
   INFO:root:No xorg.conf, exiting

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