today I’ve encountered a strange error. I realised that I can upgrade to linux48 so I decided to try it out. You know how it is when you have a perfectly working system and trying out new things…
I found out that the network driver I’m using seems not so reliable anymore so I wanted to switch back to linux44. And oops, systemd is totally unhappy about it.
During the boot I can see there has been a problem.
systemctl --failed says:
UNIT LOAD ACTIVE SUB DESCRIPTION
● sddm.service loaded failed failed Simple Desktop Display Manager
● systemd-modules-load.service loaded failed failed Load Kernel Modules
LOAD = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB = The low-level unit activation state, values depend on unit type.
2 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use ‘systemctl list-unit-files’.
Nice. Furthermore, systemctl --status systemd-modules-load.service:
Loaded: loaded (/usr/lib/systemd/system/systemd-modules-load.service; static; vendor preset: disabled)
Active: failed (Result: exit-code) since Mon 2016-10-31 22:52:58 AEST; 1min 9s ago
Process: 171 ExecStart=/usr/lib/systemd/systemd-modules-load (code=exited, status=1/FAILURE)
Main PID: 171 (code=exited, status=1/FAILURE)
Generated by mhwd - Manjaro Hardware Detection
and finally, dmesg:
nvidia: disagrees about version of symbol module_layout
Same happens for the other two modules (8168 and vboxdrv) is I install them. If I switch back to linux48 kernel, everything is fine.
I don’t understand it – I haven’t changed anything and yet it seems some upgrade script has modified a systemd config / setting so it expects 4.8.x modules only.
Any ideas how to revert it back so 4.4 modules are happily loaded?