Today, I built the mainline kernel v2.6.33.4 on Lucid. Most instruments were taken from here: https://wiki.ubuntu.com/KernelTeam/GitKernelBuild:
1. Unpack:
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# tar -jxf linux-2.6.33.4.tar.bz2 |
2. Config:
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# cd linux-2.6.33.4 # cp /boot/config-`uname -r` .config # yes '' | make oldconfig # make menuconfig |
The last line is optional. The wiki said:
Note that Ubuntu kernels build with debugging information on, which makes the resulting kernel modules (*.ko files) much larger than they would otherwise be (linux-image*.deb will be 200-300 MB instead of 20-30 MB). To turn this off, go into “Kernel hacking”; then, under “Kernel debugging”, turn off “Compile the kernel with debug info”.
It’s outdated maybe. When building kernel 2.6.24.x in Hardy, It WAS 200-300MB. But in Lucid, it is always 20-30MB. When you turn off the option, the build process took 80min instead of 100min, and 800MB instead of 5G storage. The option is configured by “CONFIG_DEBUG_KERNEL” in .config file.
3. Build:
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# make-kpkg clean # CONCURRENCY_LEVEL=`getconf _NPROCESSORS_ONLN` fakeroot make-kpkg --initrd --append-to-version=-custom --revision=2.6.33.4-1 kernel_image kernel_headers |
After all, two files were generated. It contains 2772 modules. You may find the usage of “–append-to-version” and “–revision” options here:
*) linux-headers-2.6.33.4-custom_2.6.33.4-1_i386.deb
*) linux-image-2.6.33.4-custom_2.6.33.4-1_i386.deb
4. Install:
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# sudo dpkg -i linux-headers-2.6.33.4-custom_2.6.33.4-1_i386.deb # sudo dpkg -i linux-image-2.6.33.4-custom_2.6.33.4-1_i386.deb # sudo update-initramfs -c -k 2.6.33.4-custom # sudo update-grub |
The last 2 lines are NOT mentioned in the wiki. They are used to generate the initrd image in Lucid. The build also do not generate abi and vmcoreinfo files in /boot.
5. Reference: