Hi, This is a little HOWTO about compile and use a custom kernel with live-helper. After some issues, our CDs works so we decides to provides this help here. Sorry if it's not the better way to do / better place to purpose.
We are assuming that we use the kernel version 2.6.24. and we have tested on Lenny with live-helper_1.0~a41. Required: module-assistant, gcc, libncurses-dev (optionnal) linux-source-2.6.24 1a) First, we need to fetch the kernel sources. ------------------------------------------------------------------ # aptitude install kernel-source-2.6.24 ------------------------------------------------------------------ Sources are fetched in /usr/src/linux-source-2.6.24.tar.bz2 1b) Using vanilla sources should work too ------------------------------------------------------------------ # wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.24.tar.bz2 ------------------------------------------------------------------ 2) Extract sources ------------------------------------------------------------------ # cd /usr/src # tar -xjf linux-source-2.6.24.tar.bz2 ------------------------------------------------------------------ 3) Configure the kernel Switch to the sources directory. ------------------------------------------------------------------ # cd linux-source-2.6.24 ------------------------------------------------------------------ 3a) with menuconfig (you will need libncurses-dev) ------------------------------------------------------------------ # make menuconfig ------------------------------------------------------------------ Note: don't forget to save configuration 3b) You can also use the debian/ubuntu configuration, and work from it. Configurations are usually stored in /boot and come with the linux-image-* packages. ------------------------------------------------------------------ # cp /boot/config-2.6.24 ./.config # make menuconfig (optionnal) ------------------------------------------------------------------ 4) Build the kernel packages Important: we need to append something something in our kernel version, it will help avoiding conflits with the debian / ubuntu kernels and select our kernel in the syslinux menu. It can be everything with letters and numbers, like -foobar. in this howto, we will use -dlb. Don't forget to add a revision too, it will be usefull for updates: ------------------------------------------------------------------ # fakeroot make-kpkg --initrd --revision=dlb.1.0 \ --append-to-version=-dlb kernel_image kernel_headers modules ------------------------------------------------------------------ 5) Build the modules packages We need to download some sources in order to get the live cd working. We need the lzma, squashfs and aufs modules. ------------------------------------------------------------------ # aptitude install lzma-source squashfs-source aufs-source ------------------------------------------------------------------ Prepare work ------------------------------------------------------------------ # cd /usr/src ------------------------------------------------------------------ In most cases, we don't need this link, but It can help with broken packages. ------------------------------------------------------------------ # rm -rf /usr/src/linux ------------------------------------------------------------------ link your source directory to /usr/src/linux ------------------------------------------------------------------ # ln -s linux-source-2.6.24 linux ------------------------------------------------------------------ build the modules with module-assistant ------------------------------------------------------------------ # m-a update # m-a build -k /usr/src/linux-source-2.6.24 lzma # m-a build -k /usr/src/linux-source-2.6.24 squashfs # m-a build -k /usr/src/linux-source-2.6.24 aufs ------------------------------------------------------------------ 6) Install the packages into our lh directory. At this point, you should have some packages in /usr/src Here is our /usr/src ------------------------------------------------------------------ debian:~# ls /usr/src/ aufs-modules-2.6.24-dlb_0+20080129-1+dlb.1.0_i386.deb aufs.tar.bz2 linux->linux-source-2.6.24 linux-headers-2.6.24-dlb_dlb.1.0_i386.deb linux-image-2.6.24-dlb_dlb.1.0_i386.deb linux-source-2.6.24 linux-source-2.6.24.tar.bz2 lzma-modules-2.6.24-dlb_4.43-12+dlb.1.0_i386.deb lzma.tar.bz2 modules squashfs-modules-2.6.24-dlb_3.3-3+dlb.1.0_i386.deb squashfs.tar.bz2 ------------------------------------------------------------------ Change to our live-helper directory ------------------------------------------------------------------ cd /home/user/LIVECD/ lh_config --syslinux-menu enabled # Plus eventually options cp -v /usr/src/*.deb config/chroot_local-packages/ ------------------------------------------------------------------ 7) Configure live helper Edit config/root with your favorite text editor. to avoid vi/emacs trolls, we will use nano. =) ------------------------------------------------------------------ # nano config/chroot ------------------------------------------------------------------ set LH_LINUX_PACKAGES="none" set LH_LINUX_FLAVOURS="dlb" where dlb is the "append-to-version" from the step 3 without the first dash. Don't forget to add "--syslinux-menu enabled" to lh_config Now you can lh_build your live CD/USB key and everything should be ok. We will appreciate commentaries / Critics -- Erwan Le Gall & Michel Depeige Groupe LINAGORA - http://linagora.com Tél : +33 1 58 18 68 28 fax : +33 1 58 18 68 29 _______________________________________________ debian-live-devel mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/debian-live-devel
