How to build custom Pop!_OS kernel? (with patch) about linux HOT 1 CLOSED

Figured this out! 🙂 Instead of make deb-pkg ..., looks like we should use make bindeb-pkg .... This fixes the patch errors mentioned above.

So, to build and install a Pop!_OS Linux kernel with a patch:

1. Clone Pop_OS! Linux kernel repository

$ git clone --depth 1 https://github.com/pop-os/linux.git; cd linux

2. Use the current kernel config

$ cp /boot/$(uname -r) > .config

• and change the following settings in .config
  • remove trusted and revocation keys:

    CONFIG_SYSTEM_TRUSTED_KEYS=""
    CONFIG_SYSTEM_REVOCATION_KEYS=""
    

  • disable kernel module compression:
    (fixes random SSL signing error, ref. https://askubuntu.com/a/1497413)

    CONFIG_MODULE_COMPRESS_NONE=y
    # CONFIG_MODULE_COMPRESS_ZSTD is not set
    

3. Apply any source code changes and patches

4. Clean and build with bindeb-pkg

$ make clean
$ make -j12 bindeb-pkg LOCALVERSION=-custom KDEB_PKGVERSION=$(make kernelversion)-1

6. Install the new kernel

$ cd ..
$ sudo dpkg -i linux-headers-6.6.10-custom_6.6.10-1_amd64.deb linux-image-6.6.10-custom_6.6.10-1_amd64.deb

and set it as the default with kernelstub:

sudo kernelstub -v -k /boot/vmlinuz-6.6.10-custom -i /boot/initrd.img-6.6.10-custom

7. Reboot

from linux.