This chapter contains a short overview over the 7248-133 and Linux
for PowerPC. The data for the other 7248 models should not be too
different from this.
The IBM RS/6000 43P model 7248-133 is a not extremely new PReP
based PowerPC workstation which was produced from 1995 through
1997. The 43P series includes a lot of machines, both CHRP
and PReP based. Our model has among other things this to offer:
PReP architecture
132MHz PowerPC model 604 processor
512K synchronous L2 cache
Max 192MB RAM (EDO)
Integrated ncr53c810 SCSI-2 controller
Integrated IDE controller
Integrated AMD PCnet32 PCI ethernet adapter
Integrated IBM E15 2MB graphics adapter based on the S3
Vision864 chip
Integrated Crystal Audio cs4232 sound adapter
1.44MB Floppy disk drive
IBM 8X SCSI CD-ROM drive
Usually equipped with a 1.2MB IBM DPES 31080 SCSI
hardisk
You can find more information at IBM's sales manual for this machine, found at this horrible URL
Linux has now a native port to the PowerPC processor, and all
official code is maintained in the main kernel tree.
The main part of the port was done by Gary Thomas. The story of
the port can be found here. For more information on running Linux on
the PowerPC processor, check out the LinuxPPC homepage
http://www.penguinppc.org.
The LinuxPPC-2000 distribution has no less than two installation
programs included on the CD. Unfortunately, there are some bugs
that we have to sort out to make them work. The first is the
"native" LinuxPPC installer, made with a graphical user
interface. We're going to use this method after some hacking to
get it to work. The second is a text based simple installation.
You may want to try it if nothing else works. The installer from
the ncurses- and text based Red Hat installation program may also
occure if you use old ramdisks. It's abandoned by LinuxPPC, and
will not work with LinuxPPC-2000.
We are actually not going to change much. The only problem is
that the X installer LinuxPPC has made is made to work on
PowerMacs, and is therefore a little buggy on our dear 7248 box.
So, we have to do some of the configuration manually. Don't
despair, this document will lead you through it, step by step.