Booting Linux 2.6 kernel on running PS3 Linux with kexec

Source: graf_chokolo @ http://ps3wiki.lan.st/index.php/Booting_Linux_2.6_kernel_on_running_PS3_Linux_with_kexec

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Compiling kexec for PS3 Linux

• To compile the latest kexec-tools on Debian Squeeze, you have to install autoconf and libc6-dev-ppc64 packages

$ git clone git://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git
$ cd kexec-tools
$ ./bootstrap
$ ./configure
$ make

Booting Linux 2.6 kernel with kexec on running PS3 Linux

• kexec-tools is very useful if you want to test a new Linux 2.6 kernel on PS3 without a long boot procedure with petitboot

# ./build/sbin/kexec -l /boot/vmlinux-2.6.38-rc4-00155-gb0fd285 --append="root=/dev/ps3dd1 video=720p"
# swapoff -a
# sync
# ./build/sbin/kexec -e

Booting Linux 3.5 kernel with kexec on running PS3 Linux

• Boot your new kernel on petitboot or on your running kernel.

# ./build/sbin/kexec -l /boot/vmlinux-3.5.4 --command-line="root=/dev/ps3da2 video=ps3fb:mode:0"
# ./build/sbin/kexec -u
# ./build/sbin/kexec -l /boot/vmlinux-3.5.4 --command-line="root=/dev/ps3da2 video=ps3fb:mode:0"
# sync
# reboot