jiapei100
October 16th, 2009, 06:42 PM
I've got two hard disks on my computer.
However, I installed Windows XP (NTFS) on the first hard disk, say, sda;
and installed Ubuntu 9.04 (EXT3) on the second hard disk, say, sdb.
Therefore, my grub is probably also on the very first several sectors on the second hard disk.
Now, symptoms:
1) I can see my ext3 file system from WindowsXP
2) I can boot my Ubuntu 9.04 with a boot CD
you may pick up:
installation->boot from existing system-> etc...
namely, let the CD boot first for you to start something like Lino or Grub.
3) I can't start grub. Without the CD, whenever rebooting, it will be automatically booted into WindowsXP.
df info:
$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdb1 111441192 10206532 95573760 10% /
tmpfs 517088 0 517088 0% /lib/init/rw
varrun 517088 112 516976 1% /var/run
varlock 517088 0 517088 0% /var/lock
udev 517088 136 516952 1% /dev
tmpfs 517088 264 516824 1% /dev/shm
/dev/hdc 41030 41030 0 100% /media/CDROM
/etc/fstab info:
$ cat fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# /dev/sdb1
UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a / ext3 relatime,errors=remount-ro 0 1
# /dev/sdb2
UUID=b0ef92da-737f-4790-9fe7-82af0f77b281 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
/boot/grub/menu.lst info
$ cat 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'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
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 specific 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_2_6_8=root=/dev/hdc1 ro
## kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a ro
## default grub root device
## e.g. groot=(hd0,0)
# groot=c58f5d31-a733-4228-aa8b-313c4f5a492a
## 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
## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash
## should update-grub lock old automagic boot options
## e.g. lockold=false
## lockold=true
# lockold=false
## Xen hypervisor options to use with the default Xen boot option
# xenhopt=
## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0
## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery) single
# altoptions=(recovery mode) single
## 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
## specify if running in Xen domU or have grub detect automatically
## update-grub will ignore non-xen kernels when running in domU and vice versa
## e.g. indomU=detect
## indomU=true
## indomU=false
# indomU=detect
## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true
## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false
## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false
## ## End Default Options ##
title Ubuntu 9.04, kernel 2.6.28-15-generic
uuid c58f5d31-a733-4228-aa8b-313c4f5a492a
kernel /boot/vmlinuz-2.6.28-15-generic root=UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a ro quiet splash
initrd /boot/initrd.img-2.6.28-15-generic
quiet
title Ubuntu 9.04, kernel 2.6.28-15-generic (recovery mode)
uuid c58f5d31-a733-4228-aa8b-313c4f5a492a
kernel /boot/vmlinuz-2.6.28-15-generic root=UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a ro single
initrd /boot/initrd.img-2.6.28-15-generic
title Ubuntu 9.04, kernel 2.6.28-11-generic
uuid c58f5d31-a733-4228-aa8b-313c4f5a492a
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a ro quiet splash
initrd /boot/initrd.img-2.6.28-11-generic
quiet
title Ubuntu 9.04, kernel 2.6.28-11-generic (recovery mode)
uuid c58f5d31-a733-4228-aa8b-313c4f5a492a
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a ro single
initrd /boot/initrd.img-2.6.28-11-generic
title Ubuntu 9.04, memtest86+
uuid c58f5d31-a733-4228-aa8b-313c4f5a492a
kernel /boot/memtest86+.bin
quiet
### 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/sda1
title Microsoft Windows XP Professional
root (hd0,0)
savedefault
makeactive
chainloader +1
$
Please can anybody help??
Thanks in advance.
Cheers
JIA
However, I installed Windows XP (NTFS) on the first hard disk, say, sda;
and installed Ubuntu 9.04 (EXT3) on the second hard disk, say, sdb.
Therefore, my grub is probably also on the very first several sectors on the second hard disk.
Now, symptoms:
1) I can see my ext3 file system from WindowsXP
2) I can boot my Ubuntu 9.04 with a boot CD
you may pick up:
installation->boot from existing system-> etc...
namely, let the CD boot first for you to start something like Lino or Grub.
3) I can't start grub. Without the CD, whenever rebooting, it will be automatically booted into WindowsXP.
df info:
$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdb1 111441192 10206532 95573760 10% /
tmpfs 517088 0 517088 0% /lib/init/rw
varrun 517088 112 516976 1% /var/run
varlock 517088 0 517088 0% /var/lock
udev 517088 136 516952 1% /dev
tmpfs 517088 264 516824 1% /dev/shm
/dev/hdc 41030 41030 0 100% /media/CDROM
/etc/fstab info:
$ cat fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# /dev/sdb1
UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a / ext3 relatime,errors=remount-ro 0 1
# /dev/sdb2
UUID=b0ef92da-737f-4790-9fe7-82af0f77b281 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
/boot/grub/menu.lst info
$ cat 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'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
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 specific 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_2_6_8=root=/dev/hdc1 ro
## kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a ro
## default grub root device
## e.g. groot=(hd0,0)
# groot=c58f5d31-a733-4228-aa8b-313c4f5a492a
## 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
## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash
## should update-grub lock old automagic boot options
## e.g. lockold=false
## lockold=true
# lockold=false
## Xen hypervisor options to use with the default Xen boot option
# xenhopt=
## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0
## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery) single
# altoptions=(recovery mode) single
## 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
## specify if running in Xen domU or have grub detect automatically
## update-grub will ignore non-xen kernels when running in domU and vice versa
## e.g. indomU=detect
## indomU=true
## indomU=false
# indomU=detect
## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true
## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false
## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false
## ## End Default Options ##
title Ubuntu 9.04, kernel 2.6.28-15-generic
uuid c58f5d31-a733-4228-aa8b-313c4f5a492a
kernel /boot/vmlinuz-2.6.28-15-generic root=UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a ro quiet splash
initrd /boot/initrd.img-2.6.28-15-generic
quiet
title Ubuntu 9.04, kernel 2.6.28-15-generic (recovery mode)
uuid c58f5d31-a733-4228-aa8b-313c4f5a492a
kernel /boot/vmlinuz-2.6.28-15-generic root=UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a ro single
initrd /boot/initrd.img-2.6.28-15-generic
title Ubuntu 9.04, kernel 2.6.28-11-generic
uuid c58f5d31-a733-4228-aa8b-313c4f5a492a
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a ro quiet splash
initrd /boot/initrd.img-2.6.28-11-generic
quiet
title Ubuntu 9.04, kernel 2.6.28-11-generic (recovery mode)
uuid c58f5d31-a733-4228-aa8b-313c4f5a492a
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=c58f5d31-a733-4228-aa8b-313c4f5a492a ro single
initrd /boot/initrd.img-2.6.28-11-generic
title Ubuntu 9.04, memtest86+
uuid c58f5d31-a733-4228-aa8b-313c4f5a492a
kernel /boot/memtest86+.bin
quiet
### 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/sda1
title Microsoft Windows XP Professional
root (hd0,0)
savedefault
makeactive
chainloader +1
$
Please can anybody help??
Thanks in advance.
Cheers
JIA