Ubuntu will not boot via yaboot when installed on 2nd disk on G5 (PPC)

[Joey Stanford]

Ubuntu fails to load when installed on the 2nd disk of a PPC G5 computer

Ubuntu fails to load when installed on the 2nd disk of a PPC G5 computer. Yaboot incorrectly specifies the drive mapping during config. There is no way to boot, even when editing the hfs boot disk.

[Malcolm Gregson (malcolm-gregson)]

I have been unable to get Ubuntu to boot from my (4th) disk.
I have a copy of Mac OSX on each of my first two disks (hda,hdb), Yellow Dog on a third (hdc), and Ubuntu on a fourth (hdd).
Yaboot gives me the MacOS and Yellow Dog options, but not Ubuntu.
The only way to boot into Ubuntu is via the graphical bootloader - hold down "alt" key on startup.

My machine is a Power Mac G4 1.25 Ghz Dual Processor.

Here is my /etc/yaboot.conf file, run from Yellow Dog using /sbin/ybin -v

# yaboot.conf generated by anaconda

boot=/dev/hdc2
init-message="Welcome to Yellow Dog Linux! Hit <TAB> for boot options."
partition=6
timeout=30
install=/usr/lib/yaboot/yaboot
magicboot=/usr/lib/yaboot/ofboot
delay=10
enablecdboot
macosx=/dev/hda3
macos=/dev/hda3
defaultos=macosx

image=/vmlinux-2.6.10-1.ydl.1smp
 label=linux
 read-only
 initrd=/initrd-2.6.10-1.ydl.1smp.img
 root=/dev/hdc3
 append="rhgb quiet"

image=/vmlinux-2.6.10-1.ydl.1
 label=linux-up
 read-only
 initrd=/initrd-2.6.10-1.ydl.1.img
 root=/dev/hdc3
 append="rhgb quiet"

image=/boot/vmlinux-2.6.10-5-powerpc
 label=ubuntu
 read-only
 device=/dev/hdd
 partition=3
 initrd=/boot/initrd.img-2.6.10-5-powerpc
 root=/dev/hdd3

I hope this may be helpful. I should be glad to hear of any further progress.

[Colin Watson (cjwatson)]

Please attach a tarball of /proc/device-tree/ and say which device /boot and / are on, so that I can investigate what ofpath is doing with them.

[Colin Watson (cjwatson)]

Although this one was filed earlier, I'm going to make this a duplicate of bug 18474, as that one contains more information. If you don't have SATA disks, please un-duplicate this bug again.