Arch Linux

frumble

Member

From: Germany

Registered: 2012-05-20

Posts: 162

Website

Custom Kernel: mkinitcpio doesn't find modules [solved]

Hey, I want to compile AMDs branch of Linux 4.3 with AMDGPU Powerplay support for Radeon 'Tonga'+ reclocking support. I followed the wiki.
My steps were:

git clone git://people.freedesktop.org/~agd5f/linux/ -b amdgpu-powerplay

cd linux/

make mrproper

make nconfig [enabled Powerplay, gave the kernel the name AMDGPUPOWERPLAY]

sudo make modules_install

...

sudo cp -v bzImage /boot/vmlinuz-AMDGPUPOWERPLAY

mkinitcpio -k 4.3.0-AMDGPUPOWERPLAY+ -c /etc/mkinitcpio.conf -g /boot/initramfs-AMDGPUPOWERPLAY.img

First, make modules_install was successful but gave this errors at the end of the long output:

...
  INSTALL /lib/firmware/yam/9600.bin
  DEPMOD  4.3.0-AMDGPUPOWERPLAY+
depmod: ERROR: Found 2 modules in dependency cycles!
depmod: ERROR: Cycle detected: lnet -> libcfs -> lnet
Makefile:1136: die Regel für Ziel „_modinst_post“ scheiterte
make: *** [_modinst_post] Fehler 1

But I got a folder /usr/lib/modules/4.3.0-AMDGPUPOWERPLAY+/ (why the heck with the plus?) with a size of 49 MiB.

Next, mkinitcpio gave this output:

…
==> ERROR: module not found: `crc32c'
==> WARNING: No modules were added to the image. This is probably not what you want.
==> Creating xz-compressed initcpio image: /boot/initramfs-AMDGPUPOWERPLAY+.img
==> WARNING: errors were encountered during the build. The image may not be complete.

Complete log

So there is no btrfs etc. Here a "tree" of the files in /usr/lib/modules/4.3.0-AMDGPUPOWERPLAY+/kernel/
The modules are installed, why doesn't mkinitcpio recognize them?

Last edited by frumble (2015-11-16 23:24:22)

graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,600

Website

Re: Custom Kernel: mkinitcpio doesn't find modules [solved]

Recommend you repeat this using the linux PKGBUILD from ABS.

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CPU-optimized Linux-ck packages @ Repo-ck  • AUR packages • Zsh and other configs

frumble

Member

From: Germany

Registered: 2012-05-20

Posts: 162

Website

Re: Custom Kernel: mkinitcpio doesn't find modules [solved]

I think it's caused by the problems after modules_install. Seems to be a dependency issue: https://lkml.org/lkml/2015/11/7/229
Actually, I don't understand how I could use the PKGBUILD from ABS to compile this kernel from the git branch on freedesktop.org.

graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,600

Website

Re: Custom Kernel: mkinitcpio doesn't find modules [solved]

Maybe not ABS, but you can use a PKGBUILD.  See: https://aur.archlinux.org/packages/linux-git/

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CPU-optimized Linux-ck packages @ Repo-ck  • AUR packages • Zsh and other configs

frumble

Member

From: Germany

Registered: 2012-05-20

Posts: 162

Website

Re: Custom Kernel: mkinitcpio doesn't find modules [solved]

Tried a bit harder: Disabling lNet in kconfig did the trick. No errors with modules_install, kernel boots fine and AMDGPU PowerPlay works. But thanks for your help!

Jhackler

Member

Registered: 2014-01-27

Posts: 20

Re: Custom Kernel: mkinitcpio doesn't find modules [solved]

Hey any chance anyone would be willing to make this an Aur package

frumble

Member

From: Germany

Registered: 2012-05-20

Posts: 162

Website

Re: Custom Kernel: mkinitcpio doesn't find modules [solved]

Hey any chance anyone would be willing to make this an Aur package

Wait till the release of Linux 4.4 and Linux 4.5 RC 1 in the very next weeks, then you will get AMDGPU + POWERPLAY support in the "Linux Mainline" AUR script.