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Re: Dual Boot NextStep, OpenStep
From: |
Richard van Paasen |
Subject: |
Re: Dual Boot NextStep, OpenStep |
Date: |
Tue, 18 Jun 2002 19:12:57 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020412 Debian/0.9.9-6 |
I encountered some weird behaviour, read on ...
Stefan Böhringer wrote:
It is unusual that you do not see any partitions but depending on your
disk size this may be due to different CHS-mappings comparing Linux with
NS/OS.
That seems to be a problem on my machine. The fdisk output for the disk
on which OpenStep is running is listed below: there are no partitions in
use and the drive size differs according to the drive and bios. I tried
to change the bios settings from LBA to NORMAL and LARGE mapping of CHS
parameters, but that doesn't work: OpenStep can't boot then because the
boot loader cannot find the config files. The same behaviour is shown
for the NextStep disk.
Anyway, I can mount the NextStep harddisk from OpenStep (it was already
mounted for me on /Disk). Using this, I edited the fstab file on the
NextStep disk and set the mountpoint of / to /dev/hd1a. This way
NextStep should be able to boot from the second harddisk with the
correct root partition.
After rebooting, I typed the following on the boot prompt:
hd(1,1)mach_kernel rootdev=/dev/hd1a
But... as I already suspected, the boot loader responds that the
partition is invalid. It however continues loading after 3 retries. Then
it continues in diagnostic mode, and low and behold, after a few
seconds I see NextStep coming up!!!
This puzzles me, did the boot loader start the correct kernel? Maybe it
started the kernel from the OpenStep partition with the NextStep root
partition! How can I tell?
Richard.
FDISK OUTPUT in OPENSTEP
======================================================
OpenStep:3# fdisk
NeXT fdisk v1.02
Device: /dev/rhd0h
No partitions in use
Unused Blocks Start Size
-------------------------------
Free Space 0 812
Fdisk main menu
----------------
1) Create a new partition
<...>
6) Save changes and quit
Enter 1-6: 4
Partition Table
----------------
Act H S Cyl Id H S Cyl Begin Size
--- - - --- -- - - --- ----- ----
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
Disk Information
-----------------
Disk statistics according to device driver and bios:
device: 813 Megabytes, 1665216 sectors
bios: 812 Megabytes, 1663200 sectors
cylinders = 825, heads = 32, sectors/track = 63
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