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

[Peter Nabbefeld]

Am 22.07.2018 um 16:10 schrieb Ralph Corderoy:
> Hi Peter,
>
>>>> alias 'crypto_user': Function not implemented
>>> What's in /usr/lib/modules-load.d ?
>> Only bluez.conf
> OK, and...
>
>>> Is there something pulling in `crypto_user'?
> ...what's in the file?

Strange to me: Just the entry "crypto_user" - I'd usually expect some 
more config ... ;-)

>    And...
>
>>> What package owns that file?  `pacman -Qo foo'.
/usr/lib/modules-load.d/bluez.conf is contained in bluez 5.50-3


> I think therein lies your answer.
>
>>>> 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'".
>>> So that's you manually installing linux-headers just now, and it
>>> looks like it wasn't installed before.
>> The curious issue here is, linux-headers is installed, but the package
>> hasn't been put into the cache
> Because you obtained it directly and upgrade from it with `-U'.
> The cache is of packages sync'd with `-S'.

No. Usually I'm always using "pacman -Syu". I couldn't obtain any 
package manually, because I couldn't access the internet, when I 
couldn't load kernel modules.
>> I've currently still linux-headers 4.17.8 installed, though the kernel
>> has been downgraded to 4.17.2.
> `pacman -Qi linux-headers' should show `Required by' as `None'.

It shows: "Error: Package 'linux-headers' not found"
> Remove it with `sudo -i pacman -R linux-headers'.
>
Cannot remove.
Oops - just looked again at my pacman output - they have never been 
installed ... obviously I never needed them.