Problems booting Ubuntu on old Macintoshes with SCSI disk instead of IDE

[Lukas Sabota]

On Tue, 2006-06-20 at 18:47 +0200, lorenzo ayuda wrote:
> Hello to every one!
> 
> Five years ago I installed my first Linux on my Macintosh 7500 (a very
> old Macintosh with SCSI disks instead of IDE). I Installed Suse Linux
> 6.4 and 7.1 for PPC. Now I use Ubuntu on x86 machines but I would like
> use Ubuntu on my old PowerMac 7500 too.
> 
> I have tried to install Ubuntu and other recent distributions on my
> Mac. Ubuntu is the only one that complete all the installation. but
> when I try boot, it can not initialise the system.
> 
> I think I know what is happening. In old Macintoshes it is necessary
> the Mac OS to initialise the computer. Then a tool launch the kernel
> and linux begin to work.
> 
> 
> When I install Ubuntu. I launch the kernel with an additional file as
> ram-disk. This to thing are done when Mac OS system is runing. The
> launcher load the kernel and the randisk from the hard disk and launch
> this kernel with this ramdisk.
> 
> My Macintosh and all old macintoshes have SCSI hard disks instead IDE.
> I think the kernel, on Ubuntu and Kubuntu distribution, has the SCSI
> modules compiled separately. Then on installation time this scsi
> modules are loaded from the ramdisk. But on booting time there is not
> ramdisk and then the kernel can not load the SCSI module and can not
> mount the main disk.
> 
> If my theory is true then the solution for the old Macintoshes could
> be integrate the SCSI modules on the kernel for PPC distribution (or
> in another kernel for old macintoshes). I do not have too much
> experience to try recompile the kernel. And I think more people have
> the same problem as I. For this I would like propose to discuss the
> convenience of integrate the SCSI module in the kernel of PPC
> distribution to offer a solution to owners of old Macintoshes.
> 
> I do not know if this is the place to discuse and propose this class
> of thing.
> 
> Do you could help me?
> 
> Sorry by my pour english.
> 
> Regards, Lorenzo
You will probably get more answers on the ubuntu-users list.
Good luck with your problem!

God bless,
Lukas
>