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Old 04-07-2008, 11:15 PM   #1
Registered: Jul 2007
Location: Penang , Malaysia.
Distribution: red hat linux
Posts: 133

Rep: Reputation: 15
Smile system cannot direct boot from HDD, using floppy grub to boot?

Hi, my system cannot direct boot from hdd, so i have try to using super grub disk(floppy disk)to manual boot with below command:

root (hd0,0)
kernel /vmlinuz-2.5.18 ro root=LABEL=/
initrd /initrd-2.5.18.img

I success boot into linux system. But when restart the system, than need again manually issue the command to boot it, How to edit the super grub disk to automatic boot to system or other grub to automatic boot into my system.

propose: Harddisk cannot automatic boot, need floppy or cd to boot, want to automatic boot from floppy or cd than direct boot to my hdd.

Old 04-07-2008, 11:31 PM   #2
Registered: Mar 2008
Posts: 53

Rep: Reputation: 15
After you login as linux root. Insert an empty floppy after it is mounted issue the command.

# mkbootdisk <linux-version>

It will make a boot floppy for ur linux. One thing is that it used to work for redhat 9 when the linux image was small. May not work for new versions.
Old 04-08-2008, 04:33 AM   #3
Registered: Jul 2007
Location: Penang , Malaysia.
Distribution: red hat linux
Posts: 133

Original Poster
Rep: Reputation: 15
Smile The linux version is latest, mkbootdisk cannot fit into floppy disk.

Hi, mkbootdisk to make a boot disk, but this system is latest linux system, then floppy disk cannot fit. How to use floppy grub to boot, than automatic boot into harddisk system:

This is my system linux kernel and initrd file:

root (hd0,0)
kernel /vmlinuz-2.6.10
initrd /initrd-2.6.10.img

I think sure have a way to edit the grub on floppy disk, than can direct automatic boot my hdd.

Old 04-08-2008, 01:10 PM   #4
Registered: Apr 2008
Posts: 100

Rep: Reputation: 15

Change the default entry on the floppy in file grub.conf or add another entry like:

title AnyNameWillDo
        root (hd0,0)
        kernel /vmlinuz-2.6.10 ro root=/dev/VolGroup00/LogVol00 rhgb quiet
        initrd /initrd-2.6.10.img
My example has an LVM setup (/dev/VolGroup00/LogVol00). Obviously you must change the path to your hard disk (maybe something like /dev/sda1).

This way booting starts from floppy, but will load the system from the hard disk.


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Last edited by marquardl; 05-01-2008 at 01:40 AM.


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