How to replace ubuntu 20.04 kernel with clearlinux kernel?
https://github.com/clearlinux-pkgs/linux
https://aur.archlinux.org/packages/linux-clear/
How to use clearlinux kernel for ubuntu?
Hoping for a step-by-step copy/paste guide to replace ubuntu kernel with clearlinux kernel. still incomplete copy/paste code. I wish it will be completed someday.
**DONE**
android@nazar:~/patched_source/linux-5.6.10$ cd ../
android@nazar:~/patched_source$ ls
linux-5.6.10 linux-headers-5.6.10+_5.6.10+-1_amd64.deb
linux-5.6.10+_5.6.10+-1_amd64.buildinfo linux-image-5.6.10+_5.6.10+-1_amd64.deb
linux-5.6.10+_5.6.10+-1_amd64.changes linux-libc-dev_5.6.10+-1_amd64.deb
android@nazar:~/patched_source$ uname -a
Linux nazar 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
android@nazar:~/patched_source$ sudo dpkg -i ../*.deb
[sudo] password for android:
dpkg: error: cannot access archive '../*.deb': No such file or directory
android@nazar:~/patched_source$ sudo dpkg -i *.deb
Selecting previously unselected package linux-headers-5.6.10+.
(Reading database ... 152012 files and directories currently installed.)
Preparing to unpack linux-headers-5.6.10+_5.6.10+-1_amd64.deb ...
Unpacking linux-headers-5.6.10+ (5.6.10+-1) ...
Selecting previously unselected package linux-image-5.6.10+.
Preparing to unpack linux-image-5.6.10+_5.6.10+-1_amd64.deb ...
Unpacking linux-image-5.6.10+ (5.6.10+-1) ...
Preparing to unpack linux-libc-dev_5.6.10+-1_amd64.deb ...
Unpacking linux-libc-dev:amd64 (5.6.10+-1) over (5.4.0-26.30) ...
Setting up linux-headers-5.6.10+ (5.6.10+-1) ...
Setting up linux-image-5.6.10+ (5.6.10+-1) ...
* dkms: running auto installation service for kernel 5.6.10+
Kernel preparation unnecessary for this kernel. Skipping...
applying patch 0002-Makefile.patch...patching file Makefile
Hunk #1 succeeded at 113 with fuzz 1.
Hunk #2 succeeded at 132 with fuzz 2 (offset 1 line).
applying patch 0003-Make-up-for-missing-init_MUTEX.patch...patching file src/wl/sys/wl_linux.c
Hunk #1 succeeded at 111 with fuzz 2 (offset 12 lines).
applying patch 0010-change-the-network-interface-name-from-eth-to-wlan.patch...patching file src/wl/sys/wl_linux.c
Hunk #1 succeeded at 221 (offset -14 lines).
applying patch 0013-gcc.patch...patching file Makefile
applying patch 0019-broadcom-sta-6.30.223.248-3.18-null-pointer-fix.patch...patching file src/wl/sys/wl_linux.c
Hunk #1 succeeded at 2169 (offset 12 lines).
applying patch 0020-add-support-for-linux-4.3.patch...patching file src/shared/linux_osl.c
applying patch 0021-add-support-for-Linux-4.7.patch...patching file src/wl/sys/wl_cfg80211_hybrid.c
applying patch 0022-add-support-for-Linux-4.8.patch...patching file src/wl/sys/wl_cfg80211_hybrid.c
Hunk #1 succeeded at 2391 (offset 3 lines).
Hunk #2 succeeded at 2501 (offset 3 lines).
Hunk #3 succeeded at 2933 (offset 9 lines).
applying patch 0023-add-support-for-Linux-4.11.patch...patching file src/include/linuxver.h
patching file src/wl/sys/wl_linux.c
Hunk #1 succeeded at 2919 (offset 4 lines).
applying patch 0024-add-support-for-Linux-4.12.patch...patching file src/wl/sys/wl_cfg80211_hybrid.c
Hunk #1 succeeded at 55 (offset 5 lines).
Hunk #2 succeeded at 472 (offset 5 lines).
Hunk #3 succeeded at 2371 (offset 5 lines).
Hunk #4 succeeded at 2388 (offset 5 lines).
applying patch 0025-add-support-for-Linux-4.14.patch...patching file src/shared/linux_osl.c
Hunk #1 succeeded at 1080 (offset 4 lines).
applying patch 0026-add-support-for-Linux-4.15.patch...patching file src/wl/sys/wl_linux.c
Hunk #2 succeeded at 2306 (offset 4 lines).
Hunk #3 succeeded at 2368 (offset 4 lines).
applying patch 0027-add-support-for-linux-5.1.patch...patching file src/include/linuxver.h
Hunk #1 succeeded at 595 (offset 4 lines).
Building module:
cleaning build area...
make -j4 KERNELRELEASE=5.6.10+ -C /lib/modules/5.6.10+/build M=/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build....(bad exit status: 2)
ERROR (dkms apport): kernel package linux-headers-5.6.10+ is not supported
Error! Bad return status for module build on kernel: 5.6.10+ (x86_64)
Consult /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log for more information.
[ OK ]
update-initramfs: Generating /boot/initrd.img-5.6.10+
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.6.10+
Found initrd image: /boot/initrd.img-5.6.10+
Found linux image: /boot/vmlinuz-5.4.0-26-generic
Found initrd image: /boot/initrd.img-5.4.0-26-generic
Adding boot menu entry for UEFI Firmware Settings
done
Setting up linux-libc-dev:amd64 (5.6.10+-1) ...
BEFORE REBOOT android@nazar:~/patched_source$ uname -a Linux nazar 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Solution 1:
I don't have specific experience with ClearLinux, but it looks like you can:
# It's best to first compile their gcc (https://github.com/clearlinux-pkgs/gcc)
mkdir ~/patched_source
git clone https://github.com/clearlinux-pkgs/linux ~/clearlinux_patches
cd ~/clearlinux_patches
./scripts/develop.sh linux.spec ~/patched_source
That should download the upstream kernel to a folder below ~/patched_source (it will tell you the exact name) and apply ClearLinux's own patches and default config.
You can then proceed to compile the kernel as usual, for instance:
cd that_folder
CC=/the/clearlinux/gcc make -j4 bindeb-pkg
# This will take a while and create a few linux-xxx.deb files in the parent directory
sudo dpkg -i ../*.deb # Or just the latest
Disabling the CONFIG_RETPOLINE mitigation makes it possible to compile with Ubuntu's gcc (at a cost, obviously).
The usual warnings apply: try in a VM first, secure boot can be tricky, there might be some Ubuntu-specific patches missing, ...
If you feel adventurous you can also add some of their own cmdline options to /etc/default/grub (like the ones in lines 8-15)
Solution 2:
Thanks to @Jacopo I am reposting this for my future refrence.
How to install clearlinux gcc in ubuntu?
https://cdn.download.clearlinux.org/releases/33040/clear/x86_64/os/Packages/
android@nazar:~/
wget https://cdn.download.clearlinux.org/releases/33030/clear/x86_64/os/Packages/gcc7-7.5.0-440.x86_64.rpm
sudo apt install alien git curl flex bison libssl-dev
sudo alien gcc7-7.5.0-440.x86_64.rpm
sudo dpkg -i gcc7_7.5.0-441_amd64.deb
gcc7 -v
mkdir ~/patched_source
git clone https://github.com/clearlinux-pkgs/linux ~/clearlinux_patches
cd ~/clearlinux_patches
git clone https://github.com/clearlinux-pkgs/linux ~/clearlinux_patches
cd ~/clearlinux_patches
./scripts/develop.sh linux.spec ~/patched_source
git config --global user.email "[email protected]"
./scripts/develop.sh linux.spec ~/patched_source
cd /home/android/patched_source/linux*
CC=/the/clearlinux/gcc make -j4 bindeb-pkg
sudo dpkg -i ../*.deb
post install freezing kernel
sudo apt-mark hold linux-generic linux-image-generic linux-headers-generic