So, today I checked for updates in the web interface and OMV found some, so I did the update. After that, seeing that there was a kernel update, I rebooted and I wasn't able to do anything anymore.
I have a ZFS pool where I keep all the media files and looks like zfs module didn't load anymore. I took a look at the logs and saw that there was a problem with upgrading linux-headers-amd64 package, which also triggered problems with other important packages: openmediavault-omvextrasorg, zfsutils-linux, zfs-zed.
I went to the machine and rebooted. I chose the latest known working kernel, but I get the same prolem: ZFS pool is not mounted because zfs module is not loaded.
I checked /var/log/apt/history.log and tried to manually run the latest command I found in there and here's the output:
~# apt-get --yes --allow-downgrades --allow-change-held-packages --fix-missing --auto-remove --allow-unauthenticated --show-upgraded --option DPkg::Options::=--force-confold dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
linux-headers-amd64
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
3 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up openmediavault-omvextrasorg (4.1.16) ...
Updating configuration database ...
Warning: apt-key should not be used in scripts (called from postinst maintainerscript of the package openmediavault-omvextrasorg)
Executing: /tmp/apt-key-gpghome.GoOwqJkY2R/gpg.1.sh --no-tty --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 9dc858229fc7dd38854ae2d88d81803c0ebfcd88
gpg: keyserver receive failed: No keyserver available
run-parts: /usr/share/openmediavault/mkconf/apt.d/15omvextras exited with return code 2
ERROR: Failed to create the default configuration: Command '['/usr/share/openmediavault/confdb/create.d/conf.system.omvextras.sh']' returned non-zero exit status 1
dpkg: error processing package openmediavault-omvextrasorg (--configure):
subprocess installed post-installation script returned error exit status 1
Setting up zfsutils-linux (0.7.12-2+deb10u1~bpo9+1) ...
Job for zfs-mount.service failed because the control process exited with error code.
See "systemctl status zfs-mount.service" and "journalctl -xe" for details.
invoke-rc.d: initscript zfs-mount, action "restart" failed.
● zfs-mount.service - Mount ZFS filesystems
Loaded: loaded (/lib/systemd/system/zfs-mount.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Wed 2019-10-02 21:05:06 EEST; 3ms ago
Docs: man:zfs(8)
Process: 6009 ExecStart=/sbin/zfs mount -a (code=exited, status=1/FAILURE)
Main PID: 6009 (code=exited, status=1/FAILURE)
Oct 02 21:05:06 tesla systemd[1]: Starting Mount ZFS filesystems...
Oct 02 21:05:06 tesla zfs[6009]: The ZFS modules are not loaded.
Oct 02 21:05:06 tesla zfs[6009]: Try running '/sbin/modprobe zfs' as root to load them.
Oct 02 21:05:06 tesla systemd[1]: zfs-mount.service: Main process exited, code=exited, status=1/FAILURE
Oct 02 21:05:06 tesla systemd[1]: Failed to start Mount ZFS filesystems.
Oct 02 21:05:06 tesla systemd[1]: zfs-mount.service: Unit entered failed state.
Oct 02 21:05:06 tesla systemd[1]: zfs-mount.service: Failed with result 'exit-code'.
dpkg: error processing package zfsutils-linux (--configure):
subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of zfs-zed:
zfs-zed depends on zfsutils-linux (>= 0.7.12-2+deb10u1~bpo9+1); however:
Package zfsutils-linux is not configured yet.
dpkg: error processing package zfs-zed (--configure):
dependency problems - leaving unconfigured
Processing triggers for openmediavault (4.1.26-1) ...
Updating locale files ...
Updating file permissions ...
Purging internal cache ...
Restarting engine daemon ...
Errors were encountered while processing:
openmediavault-omvextrasorg
zfsutils-linux
zfs-zed
E: Sub-process /usr/bin/dpkg returned an error code (1)What can I do in this case? I have no idea at the moment and all my music, photos, movies are "suspended".