how do i modify GRUB

zap

I installed fedora core 3.0, on a dual boot with windows xp everything went fine.

i could select which os i wanted from grub but then i downloaded all the fedora updates and now i have 3 choices in grub xp and two fedora core options? which one do i use and how do i get rid of the other 1?

Chad ghostal

should be something like
/boot/grub/menu.*
edit that file..
or you can edit it on the fly at boot time, when it starts up ( these changes wont stick )

i assume theres an extra option for a different kernal..
use the newest one i guess

zap

ye its an extra option for an updated kernel, also its changed itself fo its boots fedora by default now rather than windows

Chad ghostal

just change the order of the configs in the file,
i.e. cut and paste the full windows config above the fedora config lines,
that will make it default.

make a backup before you change it just in case..

did you find the file /boot/grub/menu.lst?

Fenster

/etc/grub.conf

It'll look something like this:

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd1,0)
#          kernel /vmlinuz-version ro root=/dev/hdb3
#          initrd /initrd-version.img
#boot=/dev/hda
default=4
timeout=5
splashimage=(hd1,0)/grub/splash.xpm.gz
hiddenmenu
#title Fedora Core (2.6.10-1.741_FC3)
#	root (hd1,0)
#	kernel /vmlinuz-2.6.10-1.741_FC3 ro root=/dev/hdb3 exec-shield=0
#	initrd /initrd-2.6.10-1.741_FC3.img
#title Fedora Core (2.6.9-1.724_FC3)
#	root (hd1,0)
#	kernel /vmlinuz-2.6.9-1.724_FC3 ro root=/dev/hdb3 exec-shield=0
#	initrd /initrd-2.6.9-1.724_FC3.img
#title Fedora Core (2.6.9-1.681_FC3)
#	root (hd1,0)
#	kernel /vmlinuz-2.6.9-1.681_FC3 ro root=/dev/hdb3 exec-shield=0
#	initrd /initrd-2.6.9-1.681_FC3.img
title Fedora Core (2.6.9-1.667)
	root (hd1,0)
	kernel /vmlinuz-2.6.9-1.667 ro root=/dev/hdb3 exec-shield=0
	initrd /initrd-2.6.9-1.667.img
title Windows XP
	rootnoverify (hd0,0)
	chainloader +1

default=4 is what you edit: Counting from 0, you set the number to whatever entry you want to go to by default. In my case its "Fedora Core (2.6.9-1.667)"

You comment out those entries you don't want to see by putting "#" at the start of the line. As for which one you use, its entirely up to yourself. When you update the kernel, you have the choice to boot to either the old kernel (as I do, my sound card doesn't work with the other ones), or boot to a newer kernel.

Mutant_Fruit

just before you remove anything, is one of the Fedora options a "Recovery" option?

I have 3 options in mine....
Debian (normal mode)
Debian (Recovery mode)
Windows XP

zap

Mutant_Fruit wrote:

just before you remove anything, is one of the Fedora options a "Recovery" option?

I have 3 options in mine....
Debian (normal mode)
Debian (Recovery mode)
Windows XP

no none were recovery 1 was xp others wer ethe version of the kernel that came on the cd and other was the updated kernel i downloaded