Am 22.07.2018 um 14:40 schrieb Ralph Corderoy:
Hi Peter,
I cannot find the error message from the service again, sorry, so I cannot tell You, it had to do with some security parameter not set. It might be in journalctl(1)'s output. Sorry, cannot find that. :-/ You have no `journalctl' command, or using it doesn't help find the error message? `journalctl -S 2018-07-20' would show all messages starting from that date, for example. https://wiki.archlinux.org/index.php/Systemd#Journal
Seems I tried some wrong search string (using grep), now I found the following: Jul 22 09:41:48 tuchola systemd-modules-load[330]: Failed to lookup alias 'crypto_user': Function not implemented
If your cache no longer has old packages, you can use the online Archive. https://wiki.archlinux.org/index.php/Downgrading_packages#Arch_Linux_Archive Thank You, Ralph! I now wonder where the linux-headers are cached It's a cache so they don't have to still exist in there, especially if you've done something to clean it at some point. See when you had dealings with that package with `grep linux-headers /var/log/pacman.log'.
Nope. Only "[PACMAN] Running 'pacman -U linux-4.17.2-1-x86_64.pkg.tar.xz linux-headers-4.17.2-1-x86_64.pkg.tar.xz'".
they're not in /var/cache/pacman/pkg Are there any other `CacheDir' configured in /etc/pacman.conf ?
No.
Are these headers used for compilation of modules only, or do they add some more value to the running linux system, too? Just the former, I think, but could be wrong. https://wiki.archlinux.org/index.php/Compile_kernel_module I've never had it installed, but then I haven't built a kernel module on this system, nor do I have https://wiki.archlinux.org/index.php/Dynamic_Kernel_Module_Support
So this won't hurt until I recompile some module. Don't have DKMS support, either.