Ubuntu broken

[Steve Calvin]

My original post:

>> I don't know what was update last, but it was November 26th using
>> synaptic. Now when I boot my iMac ramdisk load fails as above and goes
>> into open firmware. Help with troubleshooting appreciated.
>>

I did get some help but it still hasn't solved the problem:

Here's what I did:

1.  Booted into the warty install cd.
2.  Ran ASH
3.  mkdir /mnt	
4.  mount /dev/ide/host0/bus0/target0/lun0/part5 /mnt
5.  mount -t proc none /mnt/proc
6.  chroot /mnt    			---the prompt changes to:  sh-3.00#
7.  ybin
8.  exit      			 		---returns to prompt: ~#
9.  umount /mnt     			--- "device or resource busy"
10.  reboot    		 		---reboots same symptoms

I could just reinstall, but would really like to be able to fix it, and 
not reinstall every time there's a problem. Ubuntu, and Linux for that 
matter, wouldn't be useful to me then.

Can I edit the yaboot configuration file or something else to get this 
going again?

Thanks,

steve