zfs mount on / is failing because / is not empty:
● zfs-mount.service - Mount ZFS filesystems
Loaded: loaded (/lib/systemd/system/zfs-mount.service; enabled; vendor
preset: enabled)
Active: failed (Result: exit-code) since Sun 2020-11-22 06:41:54 CET; 3ms
ago
Docs: man:zfs(8)
Process: 4123780 ExecStart=/sbin/zfs mount -a (code=exited,
status=1/FAILURE)
Main PID: 4123780 (code=exited, status=1/FAILURE)
nov 22 06:41:54 Home systemd[1]: Starting Mount ZFS filesystems...
nov 22 06:41:54 Home zfs[4123780]: cannot mount '/': directory is not empty
nov 22 06:41:54 Home systemd[1]: zfs-mount.service: Main process exited,
code=exited, status=1/FAILURE
nov 22 06:41:54 Home systemd[1]: zfs-mount.service: Failed with result
'exit-code'.
nov 22 06:41:54 Home systemd[1]: Failed to start Mount ZFS filesystems.
dpkg: error processing package zfsutils-linux (--configure):
installed zfsutils-linux package post-installation script subprocess returned
error exit status 1
This suggests a ZFS on / was installed. Do you mind informing me how
the install was performed?
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1905157
Title:
package zfsutils-linux 0.8.3-1ubuntu12.4 failed to install/upgrade:
installed zfsutils-linux package post-installation script subprocess
returned error exit status 1
Status in zfs-linux package in Ubuntu:
Incomplete
Bug description:
When I try to update zfsutils-linux, the upgrade process tries to mount all
zfs file systems but since my root / is on zfs it fails with:
nov 22 08:21:28 Home systemd[1]: Starting Mount ZFS filesystems...
nov 22 08:21:28 Home zfs[286979]: cannot mount '/': directory is not empty
nov 22 08:21:28 Home systemd[1]: zfs-mount.service: Main process exited,
code=exited, status=1/FAILURE
nov 22 08:21:28 Home systemd[1]: zfs-mount.service: Failed with result
'exit-code'.
nov 22 08:21:28 Home systemd[1]: Failed to start Mount ZFS filesystems.
As a consequence, the upgrade process fails.
ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: zfsutils-linux 0.8.3-1ubuntu12.4
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset
nvidia
ApportVersion: 2.20.11-0ubuntu27.12
AptOrdering:
linux-headers-5.4.0-52-generic:amd64: Remove
linux-headers-5.4.0-52:amd64: Remove
NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sun Nov 22 06:41:54 2020
ErrorMessage: installed zfsutils-linux package post-installation script
subprocess returned error exit status 1
InstallationDate: Installed on 2020-07-08 (136 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal,
3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4
RelatedPackageVersions:
dpkg 1.19.7ubuntu3
apt 2.0.2ubuntu0.1
SourcePackage: zfs-linux
Title: package zfsutils-linux 0.8.3-1ubuntu12.4 failed to install/upgrade:
installed zfsutils-linux package post-installation script subprocess returned
error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.default.zfs: 2020-08-05T10:29:12.101838
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