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Article #534

Re: why can't one boot from /dev/hdb?

#534
From: Dan Jacobson
Date: Thu, 07 Dec 2000 03:59
58 lines
2940 bytes
OK, looks good, but how do I say this in grub?

"Svend Olaf Mikkelsen" <svolaf@inet.uni2.dk>
> "Dan Jacobson" <jidanni@kimo.FiXcomTHiS.tw> wrote:
>
> >boot=/dev/fd0
>
> boot=/dev/hdb
> >map=/boot/map
> >install=/boot/boot.b
> >vga=normal
> >default=linux
> >keytable=/boot/us.klt
> >prompt
> >timeout=50
> disk=/dev/hda
> bios=0x81
> disk=/dev/hdb
> bios=0x80
> >message=/boot/message
> >menu-scheme=wb:bw:wb:bw
> >image=/boot/vmlinuz
> > label=linux
> > root=/dev/hdb1
> > initrd=/boot/initrd.img
> > append=" hdc=ide-scsi"
> > read-only
> >other=/dev/hda1
> > label=windows
> > table=/dev/hda
> > map-drive=0x80
> >    to=0x81
> > map-drive=0x81
> >    to=0x80

I found the grub way to say 'map' [which I indeed had to remove to
boot windows from the floppy, it was already mapped apparently],
but I can't find the grub way to say disk=/dev/hda, bios=0x81...

I'm fairly sure then all I need to do is
# grub
root (hd1,1)..... #or wherever one's /boot is
setup (hd1) #write only the MBR of hdb

how does this differ from doing
# lilo
with the above /etc/lilo.conf?
Would lilo here also only write the MBR of hdb?

Just curious, grub is said to be more flexible than lilo.
Do we see any glimpses of these additional flexibilities in the above examples?

[my problem is/was: I want to set the bios to boot from hdb where linux lives,
hda is windows.  I currently can boot from the floppy [not a rescue floppy, but
just a grub in the MBR floppy]
--
www.geocities.com/jidanni E-mail: restore ".com."  ???
Tel:+886-4-5854780; starting in year 2001: +886-4-25854780
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From: "Dan Jacobson" <jidanni@kimo.FiXcomTHiS.tw>
Newsgroups: alt.os.linux.mandrake,comp.os.linux.setup,gnu.utils.help
Subject: Re: why can't one boot from /dev/hdb?
Date: Thu, 7 Dec 2000 11:59:50 +0800
Organization: Taiwan is Taiwan is not China
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