Comment 0 for bug 26058

Grub installs and works fine until you change into Windows XP. When you shutdown
Windows XP and boot again, grub doesn't even appear (no error, nothing) and the
computer restarts and keeps restarting if you don't turn it off or put a boot
cd. After boot cd, grub-install --recheck --no-floppy /dev/hda and update-grub,
things are back to normal. Until next time you boot into Windows XP...

Useless bug reports perhaps related to this are bug 12179, bug 23666, bug 25517,
bug 10712, and bug 11284.

More information below:

manu@~ $ grub --version
grub (GNU GRUB 0.95)

manu@~ $ sudo fdisk -l
Password:

Disk /dev/hda: 41.1 GB, 41110142976 bytes
255 heads, 63 sectors/track, 4998 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot Start End Blocks Id System
/dev/hda1 * 1 783 6289416 7 HPFS/NTFS
/dev/hda2 3123 4993 15028807+ f W95 Ext'd (LBA)
/dev/hda3 4994 4998 40162+ 1e Hidden W95 FAT16 (LBA)
/dev/hda4 784 3122 18788017+ 83 Linux
/dev/hda5 3123 4786 13366048+ 7 HPFS/NTFS
/dev/hda6 4787 4993 1662696 82 Linux swap / Solaris

Partition table entries are not in disk order

manu@~ $ cat /boot/grub/menu.lst

# menu.lst - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-doc/.

## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
default 0

## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout 10

## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
#hiddenmenu

# Pretty colours
#color cyan/blue white/blue

## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
# e.g. password topsecret
# password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret

#
# examples
#
# title Windows 95/98/NT/2000
# root (hd0,0)
# makeactive
# chainloader +1
#
# title Linux
# root (hd0,1)
# kernel /vmlinuz root=/dev/hda2 ro
#

#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specifiv kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
# kopt=root=/dev/hda4 ro

## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,3)

## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
## lockalternative=false
# lockalternative=false

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery mode) single
# altoptions=(recovery mode) single

## nonaltoption boot targets option
## This option controls options to pass to only the
## primary kernel menu item.
## You can have ONLY one nonaltoptions line
# nonaltoptions=quiet splash

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all

## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true

## ## End Default Options ##

title Ubuntu, kernel 2.6.12-9-686
root (hd0,3)
kernel /boot/vmlinuz-2.6.12-9-686 root=/dev/hda4 ro quiet splash
initrd /boot/initrd.img-2.6.12-9-686
savedefault
boot

title Ubuntu, kernel 2.6.12-9-686 (recovery mode)
root (hd0,3)
kernel /boot/vmlinuz-2.6.12-9-686 root=/dev/hda4 ro single
initrd /boot/initrd.img-2.6.12-9-686
boot

title Ubuntu, kernel 2.6.12-9-386
root (hd0,3)
kernel /boot/vmlinuz-2.6.12-9-386 root=/dev/hda4 ro quiet splash
initrd /boot/initrd.img-2.6.12-9-386
savedefault
boot

title Ubuntu, kernel 2.6.12-9-386 (recovery mode)
root (hd0,3)
kernel /boot/vmlinuz-2.6.12-9-386 root=/dev/hda4 ro single
initrd /boot/initrd.img-2.6.12-9-386
boot

title Ubuntu, memtest86+
root (hd0,3)
kernel /boot/memtest86+.bin
boot

### END DEBIAN AUTOMAGIC KERNELS LIST

# This is a divider, added to separate the menu items below from the Debian
# ones.
title Other operating systems:
root

# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/hda1
title Microsoft Windows XP Professional
root (hd0,0)
#savedefault
makeactive
chainloader +1

(Uncommenting savedefault doesn't change anything)

Please, just ask me for any other info you may need!