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Old 01-04-2004, 12:32 AM   #1
popp
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Registered: Jan 2004
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Grub boot to CD


Just want to know how to edit the grub file to boot to a CD... tried

title CD
root (cd0)

I was just fooling around and it didn't work :( The real command would be useful
 
Old 01-04-2004, 04:31 AM   #2
FreakboY
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title CD
rootnoverify (cdrom,0)

if not try "/dev/cdrom"
I'm just guessing... i'm not at my pc right now...
 
Old 01-04-2004, 07:23 AM   #3
Demonbane
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Registered: Aug 2003
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AFAIK grub does support booting a CD natively, but if someone knows how to do it please let me know.
In the meantime try this, download this bootsector file and put it in your /boot
http://ryantsai.ozforces.com.au/bootflop.bin
and add in grub.conf/menu.lst:
Code:
title Floppy/CDROM
chainloader /boot/bootflop.bin +1
what this file does is that it'll first try booting from the floppy, if one isnt present then it'll try to boot from the cdrom, a bit of a nuisance but hey it works.
 
Old 01-13-2004, 10:50 AM   #4
metagore
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Does anyone have a hack of this bootsector that will just jump to the booting from CD instead of testing the floppy first?
 
Old 01-13-2004, 12:46 PM   #5
MrOuija
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CMOS Option

You should be able to modify the boot order in the CMOS, just change the first boot device to CDROM, it is commonly set to floppy.
 
Old 01-13-2004, 03:50 PM   #6
metagore
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Well, the point is not to boot the system to the CDROM. That I know how to do.

What I have is a floppy disk that I need to leave in the drive and have it bypass it to the CDROM unless another option is being selected. I am using grub on a FAT12 floppy disk. I have a Freedos boot sector for when I want to boot to the floppy. I want to use this bootsector (minus the floppy check) as the default option.

This way I can boot to the floppy if I select it, otherwise it will resume booting to the other devices.

Unfortunately I know very little about x86 assembly code otherwise I would have done it by now.
 
  


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