[arch-general] Kernel modules not loaded after Linux update

[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.

> According to the description of kernel downgrading in the wiki, I
> should have downgraded linux-headers, too, but these are not in my
> package cache - are they included in the kernel package now?

No.  It's still a package.
https://www.archlinux.org/packages/core/x86_64/linux-headers/

    $ pacman -Slq | egrep '^linux($|-)'
    linux
    linux-api-headers
    linux-atm
    linux-docs
    linux-firmware
    linux-headers
    linux-lts
    linux-lts-docs
    linux-lts-headers
    linux-hardened
    linux-hardened-docs
    linux-hardened-headers
    linux-zen
    linux-zen-docs
    linux-zen-headers
    linux-tools-meta
    $

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

-- 
Cheers, Ralph.
https://plus.google.com/+RalphCorderoy