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Re: [ot] grub with 2 hard disks (was [OT] Grub)



On Tue, Feb 27, 2001 at 11:25:11AM +0800, Joey Kool wrote:
| Ok, I was finally able to boot /dev/hdb and sees "GRUB" on the monitor. 
| But that's all. Seems like the thing hang or something though a cursor 
| is blinking. 
| 
| Another thing I can do is to install grub into the mbr of hd0 but don't
| really want to do that as this is a company pc not mine. Don't wanna to
| change /dev/hda's mbr held by nt.
| 
| (For purpose of clarity, the previous problem of os not found was due to
| the fact that I did not change the bios bootup sequence. I had to specify the 2nd harddisk as the bootup disk instead of the first in bios. 
| My pc is a IBM 300 GL.)
| 

(I'm going through several days of list mail)

When I first read your message, I thought you must be confused.  There
is only 1 MBR on a PC.  That's why it is the MASTER boot record.
Since you have changed your BIOS to look for the MBR in a different
location (/dev/hdb instead of /dev/hda) that might solve that issue.

I haven't tried this yet -- I need to get some Debian CDs to reinstall
first -- but according to GRUB's documentation (and assuming BIOS
compatibility) you should be able to make /dev/hda the linux disk and
/dev/hdb the NT disk (physically switching the disks on the bus).
THen use grub's swap functionality to make NT *think* it is on the
primary master disk.  (But switch the BIOS back to using /dev/hda as
the MBR)

Another alternative you have is to always boot off the floppy.  Not
quite ideal, but it isn't so bad either.

BTW, GRUB is the coolest thing I have seen yet.  I was able to use it
to dual boot a Win2k/RH6.2 system I had to install at work the other
week with no trouble.  The linux kernel is above the 1024 cylinder
too.  I tried LILO on a floppy first, but after a fair amount of
difficulty, it still couldn't boot windows.  Being able to configure
it /before/ an OS is running is very crucial for inexperienced users.
It's shell is very cool
too.

-D



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