Debian LiveCD
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Introduction
- Sometimes we need to boot Linux without HDD e.g. if you want to experiment with HDD encryption, enable/disable it without causing damage to your data. For such cases we need a LiveCD which doesn't mount HDD at boot.
Creating Initial System with debootstrap
apt-get install debootstrap
mkdir livecd
debootstrap --arch powerpc squeeze /root/livecd http://ftp.us.debian.org/debian
# Grab a beer and reverse some PS3 stuff in the meantime :)
# Enter chroot environment
mount -t proc none /root/livecd/proc
mount --rbind /dev /root/livecd/dev
LANG=C chroot /root/livecd /bin/bash
export TERM=xterm-color
echo "debian" > /etc/hostname
dpkg-reconfigure tzdata
# Configure network interfaces
cat /etc/network/interfaces
---
auto lo
iface lo inet loopback
allow-hotplug eth0
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-ssid ssid
wpa-psk psk
-EOF-
Initramfs
Linux 3 Kernel
- We need a Linux 3 kernel with overlayfs support so we could create a tmpfs over our read-only base filesystem.
- At the moment overlayfs is not supported on Linux 3.5 so it leaves us with Linux 3.4 which doesn't really matter because all my Linux 3 drivers are supported on Linux 3.4 just fine.
- Furthermore, we want to compile PS3 HDD driver as module because in this case we can easily change HDD region flags.