Remastering Debian Netinstall CD for PS3

Introduction

• Unfortunately, we cannot use official Debian netinstall CD with PS3 OtherOS++ because of the vanilla ps3disk HDD driver.
• We have to modify it and replace the Linux kernel on the netinstall CD with our PS3 Linux kernel.

Remastering

• Grab the official powerpc Debian netinst CD from here: http://www.debian.org/CD/netinst/

mkdir netinst
cd netinst

losetup /dev/loop1 ./debian-6.0.5-powerpc-netinst.iso
mount /dev/loop1 /mnt/iso

cp -r /mnt/iso /root/netinst/

ls -l iso/install/powerpc64/
total 22636
-r--r--r-- 1 root root  4414184 Sep  8 13:30 initrd.gz
-r--r--r-- 1 root root 11384603 Sep  8 13:30 vmlinux
-r--r--r-- 1 root root  7375128 Sep  8 13:30 vmlinuz-chrp.initrd

# we have to modify initrd.gz and replace vmlinux with our PS3 Linux kernel

# remaster initrd

cat iso/install/powerpc64/initrd.gz | gunzip > initrd.cpio
mkdir initrd
cpio -i -d -H newc --no-absolute-filenames < ../initrd.cpio

rm -rf lib/modules/2.6.32-5-powerpc64
cp -r /home/glevand/linux-3.5.3-build/lib/modules/3.5.3 lib/modules/
depmod -b /root/netinst/initrd 3.5.3

find . | cpio -H newc -o > ../initrd.cpio
cd ..
cat initrd.cpio | gzip > iso/install/powerpc64/initrd.gz

cp /home/glevand/linux-3.5.3-build/boot/vmlinux iso/install/powerpc64/vmlinux
/opt/powerpc64-linux-gcc-4.6.2/bin/powerpc64-linux-strip iso/install/powerpc64/vmlinux