Re: [gentoo-user] Realtek r8169 realtek.ko not loaded.

[Alexander Puchmayr]

Am Sonntag, 17. Mai 2020, 14:52:32 CEST schrieb William Kenworthy:

Thanks for the example, but it does not work. 
I added 

Modules="realtek"

The called genkernel initramfs, and rebooted.

The module realtek gets loaded, but obviously too late, I get the same error 
message in dmesg and not eth0.

However, I extracted the produced initrd to tmp and made a "grep -r realtek" 
on this directory. After removing the audio-realtek related lines, this has 
has been found:
...
/lib/modules/5.4.28-gentoo/modules.dep:kernel/drivers/net/ethernet/realtek/
r8169.ko: kernel/drivers/net/phy/libphy.ko
...
./lib/modules/5.4.28-gentoo/modules.softdep:softdep r8169 pre: realtek
./lib/modules/5.4.28-gentoo/modules.order:kernel/drivers/net/phy/realtek.ko
...

There's a softdep-line for r8169 in
./lib/modules/5.4.28-gentoo/modules.softdep inside the initrd, but it seems to 
be ignored.

This lead me to initrd:/sbin/modprobe, which is a link to busybox. And the 
busybox binary embedded here is v1.20, released in 2012 (!). However, 
consulting google yielded that busybox's modprobe implementation does not 
support softdeps, even newer versions:

https://www.element14.com/community/message/234094
https://forums.slimdevices.com/showthread.php?107329-Cirrus-Logic-Audio-Card-and-Wolfson-support-in-PCP-3-20

It seems as if I get stuck here,  pre-loading required modules won't work as 
long this is not supported by busybox, which is a topic that the devs of 
busybox and genkernel have to solve.

I will have to switch to Victor's method of building the driver directly into 
the kernel and not as module.

Thanks
	Alex



>  Linux users can define a list of modules for a specific kernel version,
> # a released kernel version, a main kernel version or all kernel versions.
> # The most specific versioned variable will take precedence.
> # FreeBSD users can only use the modules="foo bar" setting.
> #modules_2_6_23_gentoo_r5="ieee1394 ohci1394"
> #modules_2_6_23="tun ieee1394"
> #modules_2_6="tun"
> #modules_2="ipv6"
> #modules="ohci1394"
>
> # Linux users can give modules a different name when they load - the new
> name
> # will also be used to pick arguments below.
> # This is not supported on FreeBSD.
> #modules="dummy:dummy1"
>
> # Linux users can give the modules some arguments if needed, per version
> # if necessary.
> # Again, the most specific versioned variable will take precedence.
> # This is not supported on FreeBSD.
> #module_ieee1394_args="debug"
> #module_ieee1394_args_2_6_23_gentoo_r5="debug2"
> #module_ieee1394_args_2_6_23="debug3"
> #module_ieee1394_args_2_6="debug4"
> #module_ieee1394_args_2="debug5"
>
> # You should consult your kernel documentation and configuration
> # for a list of modules and their options.
>
> modules="forcedeth nouveau"