Re: A bit of a problem with a Linux/XP dual boot setup...

On 07/17/2010 04:00 AM, Dick Roark wrote:
I have two disks, one contains Fedora 12 and the other contains
Windows XP. Both boot and run individually in the same computer (by
swapping cables). I am trying to set up a dual boot using GRUB but
I'm having some problems. Here is my grub.conf file:

# 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 (hd0,0)

# kernel /vmlinuz-version ro root=/dev/mapper/vg_shorty-lv_root

# initrd /initrd-[generic-]version.img

# boot=/dev/sda

default=2

timeout=15

splashimage=(hd0,0)/grub/splash.xpm.gz

# hiddenmenu

title Fedora (2.6.32.16-141.fc12.i686.PAE)

root (hd0,0)

kernel /vmlinuz-2.6.32.16-141.fc12.i686.PAE ro
root=/dev/mapper/vg_shorty-lv_root LANG=en_US.UTF-8
SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rhgb quiet

initrd /initramfs-2.6.32.16-141.fc12.i686.PAE.img

title Fedora (2.6.31.5-127.fc12.i686.PAE)

root (hd0,0)

kernel /vmlinuz-2.6.31.5-127.fc12.i686.PAE ro
root=/dev/mapper/vg_shorty-lv_root LANG=en_US.UTF-8
SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rhgb quiet

initrd /initramfs-2.6.31.5-127.fc12.i686.PAE.img

title Windows XP

root (hd1,2)

makeactive

chainloader +1


Here's the fdisk output:

[root@shorty droark]# fdisk -l


Disk /dev/sda: 500.1 GB, 500106780160 bytes

255 heads, 63 sectors/track, 60801 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x0001c9cc


Device Boot Start End Blocks Id System

/dev/sda1 * 1 26 204799+ 83 Linux

Partition 1 does not end on cylinder boundary.

/dev/sda2 26 60802 488179712 8e Linux LVM

Partition 2 does not end on cylinder boundary.


Disk /dev/sdb: 500.1 GB, 500106780160 bytes

255 heads, 63 sectors/track, 60801 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x076d076c


Device Boot Start End Blocks Id System

/dev/sdb1 1 26 204799+ 83 Linux

Partition 1 does not end on cylinder boundary.

/dev/sdb2 * 26 60802 488179650 7 HPFS/NTFS

Partition 2 does not end on cylinder boundary.


Disk /dev/dm-0: 494.3 GB, 494307115008 bytes

255 heads, 63 sectors/track, 60096 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x00000000


Disk /dev/dm-0 doesn't contain a valid partition table


Disk /dev/dm-1: 5586 MB, 5586812928 bytes

255 heads, 63 sectors/track, 679 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x00000000


Disk /dev/dm-1 doesn't contain a valid partition table


Disk /dev/sdc: 1812.1 GB, 1812124903424 bytes

255 heads, 63 sectors/track, 220311 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x5044b1a4


Device Boot Start End Blocks Id System

/dev/sdc1 * 1 121601 976760001 7 HPFS/NTFS

[root@shorty droark]#


Eventually I have tried every combination for the disk/partition on
the NTFS disk. While the "Windows XP" option always appears in the
GRUB options, the option fails each time with something like "disk not
found". When that happens, I can still select the Fedora kernel and
away we happily go.

Sorry for the bother and thanks for anything.

Dick

You have only 2 partitions on disk containing windows, yet you say:

title Windows XP
root (hd1,2)
makeactive
chainloader +1

Since grub partition numbers start at 0, and windows is
on partition 1, your entry
root (hd1,2)
needs to change to
root (hd1,1)

Try it and let us know.
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