How to install YDL 2.0 on an RS/6000


Subject: How to install YDL 2.0 on an RS/6000
From: Leigh Brown (leigh@solinno.co.uk)
Date: Mon Jul 16 2001 - 01:51:31 MDT


Hi all,

I was browsing the archives for information as to how to install YDL 2.0
on an RS/6000 and couldn't find any answers. I have since worked out a
way that _should_ work (I say should, because I haven't quite got it
working yet - more on that later).

Anyway, its quite simple, if laborious.

1) Format MS-DOS floppy and copy the correct zImage onto it.
2) Uncompress appropriate (text or X11) ramdisk image and copy
   onto 12 (sorry :-( ) blank floppies. Possibly like this:
   $ gunzip -c ramdisk-blah-blah.gz >/tmp/ramdisk
   $ dd if=/tmp/ramdisk of=/dev/fd0 bs=512 count=2880
   $ dd if=/tmp/ramdisk of=/dev/fd0 bs=512 count=2880 skip=2880
   $ dd if=/tmp/ramdisk of=/dev/fd0 bs=512 count=2880 skip=5760
   .. and so on ..
3) Boot to open firmware prompt (F8 on my 43P-140).
4) Boot kernel from MS-DOS floppy. My command line is:
   0> boot floppy:,\zImage root=/dev/fd0 load_ramdisk=1
           ramdisk_size=128000 noinitrd
   (above command must be all on one line, substitute zImage with
    your kernel filename).
5) Feed it the 12 ramdisk images as it prompts for them.
6) The installer will start.

Now, I got stuck on point 6. This is because I had to compile a custom
kernel for my 43P-140 and I hadn't included USB support (as a 43P-140
doesn't have USB). The installer tries to mount /proc/bus/usb and
aborts if it can't.

I'll recompile my kernel and have another go when I get time, but the
technique should work for a standard RS/6000.

Anyway, hope this helps. Please cc me on any follow ups.

Cheers,

Leigh.



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