====== yaboot ======

  * [[PowerMac G5]]

  * [[https://help.ubuntu.com/community/YabootConfigurationForMacintoshPowerPCsDualBoot|Ubuntu yaboot]]

Use yaboot to boot into a Linux install from a PowerPC Mac.

Create a configuration file in ''/etc/yaboot.conf''.

Set the boot parameter to the partition where the NewWorld bootblock is installed (typically /dev/sda2).

<code>
boot=/dev/sda2
</code>

Use ''ofpath'' to determine the HDD name used by OpenFirmware.  Use the full device name, not a partition:

<code>
ofpath /dev/sda
</code>

<code>
device=/ht@0,f2000000/pci@9/k2-sata-root@c/k2-sata@0/disk@0:
</code>

The partition number is the one with the root OS install.  It's highly recommended to keep ''/boot'' on the same partition.

<code>
# HFS partition
boot=/dev/sda2
device=/ht@0,f2000000/pci@9/k2-sata-root@c/k2-sata@0/disk@0:
# Linux partition
partition=3
delay=10
timeout=40
install=/usr/lib/yaboot/yaboot
magicboot=/usr/lib/yaboot/ofboot
# Allow booting from CD
enablecdboot
# Allow booting from Open Firmware
enableofboot
image=/boot/vmlinux-3.6.11
	label=linux
	root=/dev/sda3
	read-only
</code>

Once the configuration file is complete, use ''mkofboot'' to install it.  This will create an HFS filesystem on the bootblock partition.  If you are booted into a LiveCD, it will look for the files that are listed in the config file.  In other words, when installing it, do it from the same filesystem that the boot files exist on.

<code>
mkofboot
</code>