Kernel configuration copying, compile, grub2 and systemd-boot updating, old kernel cleaning script for Gentoo Linux.
- If you are using systemd-boot you should first learn rootfs disk UUID or LVM partitions and then add it to the script:
ROOT_UUID="dfc577c0-edd4-8543-a3fe-d7d49bd8f141"Optional: You can add specific kernel parameters to CMDLINE. Example:
CMDLINE="ro init=/usr/lib/systemd/systemd rootfstype=ext4 quiet"
Usage: ./build-kernel.sh: [-h] [-c] [-i] [-l] [-s] [-r] [-a]
-h Show this help message
-c Configure and compile kernel
-i Build, Install kernel and initramfs
-l Update boot system(grub or systemd-boot)
-s Sign kernel with secure boot key and cert
-r Remove old kernel(s) and initramfs(exclude last 2 kernel(s))
-a All of the above (execute all options)
NOTE: I have rewritten the script. If you are using the old version, you should update it.