RebuildPPAKernelImages

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ppa kernel

Install ppa kernel on ubuntu20.04 via:

add-apt-repository ppa:tuxinvader/lts-mainline -y
apt update -y
apt-get install -y linux-generic-5.19

After reboot, check the kernel via:

# uname -r
5.19.3-051903-generic

Customization of Kernel

uncomment the deb-srcfor ppa:

# cat /etc/apt/sources.list.d/tuxinvader-ubuntu-lts-mainline-focal.list 
deb http://ppa.launchpad.net/tuxinvader/lts-mainline/ubuntu focal main
deb-src http://ppa.launchpad.net/tuxinvader/lts-mainline/ubuntu focal main
# apt update

Get the source code:

# apt install linux-source-5.19.3
# ls /usr/src/linux-source-5.19.3/
debian  debian.master  linux-source-5.19.3.tar.bz2

Get the build-dep for kernel:

# apt build-dep linux-generic-5.19
# apt build-dep linux-doc

Prepare the build tree:

# cd /usr/src/linux-source
# bunzip2 linux-source-5.19.3.tar.bz2
# tar xf linux-source-5.19.3.tar
# mv linux-source-5.19.3/* .
# mkdir debian/stamps

Build via:

# fakeroot debian/rules clean
# fakeroot debian/rules editconfigs
# fakeroot debian/rules binary-headers binary-generic binary-perarch

build will take sometimes, so drink a cup of H~~~ot tea and wait.

Check the built result:

# ls /usr/src/*.deb
/usr/src/linux-buildinfo-5.19.3-051903-generic_5.19.3-051903.202208220846_amd64.deb
/usr/src/linux-headers-5.19.3-051903_5.19.3-051903.202208220846_all.deb
/usr/src/linux-headers-5.19.3-051903-generic_5.19.3-051903.202208220846_amd64.deb
/usr/src/linux-image-unsigned-5.19.3-051903-generic_5.19.3-051903.202208220846_amd64.deb
/usr/src/linux-modules-5.19.3-051903-generic_5.19.3-051903.202208220846_amd64.deb

Benchmark

glmark2 result:

# uname -r
5.19.3-051903-generic
# export DISPLAY=:179
# glmark2
=======================================================
    glmark2 2021.02
=======================================================
    OpenGL Information
    GL_VENDOR:     Intel
    GL_RENDERER:   Mesa Intel(R) Graphics (SG1)
    GL_VERSION:    4.6 (Compatibility Profile) Mesa 22.2.0-devel (git-e8fc5cc 2022-06-22 focal-oibaf-ppa)
=======================================================
.........
=======================================================
                                  glmark2 Score: 2886 
=======================================================