Hi,
There are much more useful post on the list that Mr. Pickering
wrote.
----------------------- Original Message -----------------------
From: "Stephen.Pickering" <[EMAIL PROTECTED]>
To: "ay" <[EMAIL PROTECTED]>,
<debian-powerpc@lists.debian.org>
Date: Tue, 22 Aug 2000 23:33:04 +0100
Subject: Re: Making a bootable CDROM for an RS/6000 PReP machine
----
----- Original Message -----
> Hi, I have an RS/6000 860 portable. I have debian ppc installed on
> it. The Debian PPC CD image was bootable for me, but the kernel wasnt
> correct and would bomb out. I tried to roll my own bootable CD with
> mkisofs, as a rockridge extensions, and a kernel image that works from
> floppy, as and El torito bootable CD. This cd is not bootable although
> mountable as ISO-9660. I was looking for some insight as to the format of
> the Debian PPC cd image and how it is bootable on my PReP machine, so
> I can make my own. I am
> currently sans floppy drive and would like to be able to test and compile
> kernels properly and the PReP boot isnt like LILO ;( ... Any help would
> be great. Ill have a floppy drive soon, but CD booting is much faster!
I have made bootable CD's for a Motorola Powerstack 604-100
(first version). If the IBM is PREP it should be the same,
assuming the kernel is bootable on the machine.
Here's what I posted to comp.os.linux.powerpc:
The CD that comes with debian 2.2r0 for PPC has a Prep
bootable CD #1, but it doesn't fully work, you still need
to use floppies for Motorola PowerStacks; not sure which
systems it works on, probably IBM's.
Here's what to do:
Get a copy of MkHybrid, I used the win32 version as
my burner is on my NT4 laptop so my notes are windowz based
(not to different for unix though).
o create a folder for the necessary files, I called it cdrom.
o Mount the first 2.2r0 CD in the CD reader (R:)
o Copy base2_2.tgz from:
R:\dists\potato\main\disks-powerpc\2.2.16-2000-07-26
to the folder cdrom.
o Copy the files from:
R:\dists\potato\main\disks-powerpc\2.2.16-2000-07-26\prep
to the folder cdrom.
The folder cdrom will look like:
Directory of D:\2.2_rev0-PPC\PrepBoot\cdrom
25-07-00 06:50p 16,496,028 base2_2.tgz
25-07-00 06:50p 2,069,854 bootfull.bin
25-07-00 06:50p 964,807 drivers.tgz
25-07-00 06:52p 10,925 install.txt
25-07-00 06:52p 723,034 linux
25-07-00 06:52p 62,792 sysmap.gz
8 File(s) 20,327,440 bytes
o Create the iso image (using the MkHybrid tool):
>mkhybrid -o cd.iso -J -L -r -T -V 2.2r0 -prep-boot bootfull.bin
cdrom
o Burn the cd image with whatever burner s/w you have for your
CD writer (I used Adaptec Easy CD Creator 3.5 lite).
o Boot using this cdrom:
PPC1-Diag> pboot 0 60 --Assuming your cd is scsi id 6
o When partitioning the disk ensure there is a PREP bootable
partition, here's my partition table:
Disk /dev/sda: 67 heads, 62 sectors, 1009 cylinders
Units = cylinders of 4154 * 512 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 2 4123 41 PPC PReP Boot
/dev/sda2 3 122 249240 82 Linux swap
/dev/sda3 123 1009 1842299 83 Linux
o Change the CD's as requested by the installer.
o After you have installed potato you will need to add
root=/dev/sda3 as a parameter during boot as the kernel is
built assuming /dev/sda1 as root.
o If you have a PPC1bug that supports the GEVEDIT command you
can set this as a global environment variable:
PPC1-Diag>GEVEDIT bootargs
bootargs=root=/dev/sda3
Update Global Environment Area of NVRAM (Y/N)? y
NOTE: It would be possible to copy the contents of disk 1 onto this
disk either as another session or simply add the files into the cdrom
directory and use mkhybrid to create the entire cd (have done in
the past), but I prefer leaving the debian cds untouched.
-------
Best regards.
----------------------
Kaz Aoshima = Editor of the PReP station
Solid Surface Lab. of Material development,
Faculty of engineering, Tohoku University, Japan
E-mail:[EMAIL PROTECTED]
#I would appreciate if you could give me suggestions
for my impolite English expressions.
