Unofficial user repositories/Repo-ck
Repo-ck is an unofficial Arch Linux repository hosting generic and CPU-optimized kernels. It has been in operation since 2011 and is maintained by graysky.
|Brand||Group Alias||Description||Build flags enabled by patchset|
|Any||ck-generic||x86-64 generic kernel good for any supported CPU||-march=x86-64|
|ck-generic-v2||x86-64-v2 generic kernel good for any supported CPU||-march=x86-64-v2|
|ck-generic-v3||x86-64-v3 generic kernel good for any supported CPU||-march=x86-64-v3|
|ck-generic-v4||x86-64-v4 generic kernel good for any supported CPU||-march=x86-64-v4|
Selecting the correct CPU optimized package
If a model specific kernel is not offered, users should select one of the three generic packages that is best matched to the specific hardware. To tell which generic package is best, simply run:
$ /lib/ld-linux-x86-64.so.2 --help | grep supported
x86-64-v3 (supported, searched) is in the output, use the ck-generic-v3 group. If only
x86-64-v2 (supported, searched) is in the output, use the ck-generic-v2 group. If neither are in the output, use the ck-generic group.
Those wanting CPU-specific optimized packages can run the following command (assuming that base-devel is installed):
$ gcc -c -Q -march=native --help=target | grep march
-march is what GCC would use natively. Refer to the table above for a mapping of this value to the correct group; again, not every possible value will have a specific group.
For further help, see:
Speed benefits of CPU optimized packages
Extensive testing comparing the effect of GCC compile options show varying results, from no change to rather significant speed ups.   
Add the repository to
/etc/pacman.conf under the Arch official repositories:
[repo-ck] Server = http://repo-ck.com/$arch
Sign graysky's key:
# pacman-key -r 5EE46C4C --keyserver keyserver.ubuntu.com && pacman-key --lsign-key 5EE46C4C
aviallon hosts a mirror with better bandwidth and stability, synchronized every 6 hours. You can add it to your
[repo-ck] Server = https://mirror.lesviallon.fr/$repo/os/$arch Server = http://repo-ck.com/$arch
Update your sync database and install the chosen kernel variant (see above for available variants):
# pacman -Syu linux-ck
Update boot loader configuration
If you are using GRUB with a common setup, then you can update its configuration by regenerating the main configuration file.
Please use the BBS thread.
Error: signature from graysky is unknown trust
Users must import and sign graysky's gpg key. Instructions along with his key ID are located at repo-ck.com. See also Pacman/Package signing#Adding unofficial keys.