ARM/N900/Install/kexec

Native installation is based on kexec. Default Maemo kernel however doesn't have support for it so it needs to be replaced first. Compile fremantle kernel with following patches.

• ARM: 5884/1: arm: Fix DCC console for v7
• ARM: 5885/1: arm: Flush TLB entries in setup_mm_for_reboot()
• ARM: 5886/1: arm: Fix cpu_proc_fin() for proc-v7.S and make kexec work
• ARM: 5888/1: arm: Update comments in cacheflush.h and remove unnecessary V6 and V7 comments

Instructions for compiling Maemo kernel can be found from: Maemo kernel guide

Create a symbolic link on N900 so that existing kernel modules will be used with the new kernel.

cd /lib/modules
ln -s 2.6.28-omap1 2.6.28-omap1-kexec-patched

Flash the patched kernel:

flasher -f -k zImage-kexec-patched

Install kexec-tools user space application from Maemo-extras repository.

Install Meego image on external micro mmc card.

sudo moblin-image-writer <image-file>

Connect external micro mmc card.

Run kexec

kexec -l /boot/zImage-2.6.33 --command-line="init=/sbin/init rootwait root=/dev/mmcblk0p1 rw console=ttyS2,115200n8"
sync
kexec -e