windows overwrote boot record
Juan Kawada
juankawada at gmail.com
Fri Aug 22 01:10:53 UTC 2008
/media/etc/mtab
/dev/sda6 / ext2 rw,relatime,errors=remount-ro 0 0
proc /proc proc rw,noexec,nosuid,nodev 0 0
/sys /sys sysfs rw,noexec,nosuid,nodev 0 0
varrun /var/run tmpfs rw,noexec,nosuid,nodev,mode=0755 0 0
varlock /var/lock tmpfs rw,noexec,nosuid,nodev,mode=1777 0 0
udev /dev tmpfs rw,mode=0755 0 0
devshm /dev/shm tmpfs rw 0 0
devpts /dev/pts devpts rw,gid=5,mode=620 0 0
securityfs /sys/kernel/security securityfs rw 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,noexec,nosuid,nodev 0 0
fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# /dev/sda6
UUID=c9b44b26-5f41-48f0-bee9-778991065600 / ext2
relatime,errors=remount-ro 0 1
# /dev/sda5
UUID=01c0a273-845f-4658-a37b-16257de6e0ef none swap sw
0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
/dev/scd1 /media/cdrom1 udf,iso9660 user,noauto,exec,utf8 0 0
/media/boot/grub/device.map
(hd0) /dev/sda
/media/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'.
# 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=c9b44b26-5f41-48f0-bee9-778991065600 ro
## Setup crashdump menu entries
## e.g. crashdump=1
# crashdump=0
## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,5)
## 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
## 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 8.04.1, kernel 2.6.24-19-generic
root (hd0,5)
kernel /boot/vmlinuz-2.6.24-19-generic
root=UUID=c9b44b26-5f41-48f0-bee9-778991065600 ro quiet splash
initrd /boot/initrd.img-2.6.24-19-generic
quiet
title Ubuntu 8.04.1, kernel 2.6.24-19-generic (recovery mode)
root (hd0,5)
kernel /boot/vmlinuz-2.6.24-19-generic
root=UUID=c9b44b26-5f41-48f0-bee9-778991065600 ro single
initrd /boot/initrd.img-2.6.24-19-generic
title Ubuntu 8.04.1, memtest86+
root (hd0,5)
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
If nobody can think of anything else, I think I might try to install
another instance of linux on the harddrive. It'll rewrite the mbr, and
I'll be able to boot into kubuntu again. This definitely isn't the
best way, but it will (hopefully) work.
On 8/22/08, Karl Klinger <karlok at fastmail.fm> wrote:
> Juan Kawada wrote:
>> ubuntu at ubuntu:~$ sudo fdisk -l
>> omitting empty partition (5)
>>
>> Disk /dev/sda: 320.0 GB, 320072933376 bytes
>> 255 heads, 63 sectors/track, 38913 cylinders
>> Units = cylinders of 16065 * 512 = 8225280 bytes
>> Disk identifier: 0x724bd9dc
>>
>> Device Boot Start End Blocks Id System
>> /dev/sda1 * 1 6869 55175211 7 HPFS/NTFS
>> /dev/sda2 6870 11778 39431542+ 7 HPFS/NTFS
>> /dev/sda3 11779 38913 217961887+ 5 Extended
>> /dev/sda4 38162 38913 6040408+ 82 Linux swap /
>> Solaris
>> /dev/sda5 11779 38161 211921384+ 83 Linux
>>
> It looks like your partition table is messed up. The extended partition
> should always be sda4. This is my fdisk -l output:
>
> /dev/sda1 * 1 1216 9767488+ 7 HPFS/NTFS
> /dev/sda2 1217 1581 2931862+ 82 Linux swap / Solaris
> /dev/sda4 1582 9212 61296007+ 5 Extended
> /dev/sda5 1582 2797 9767488+ 83 Linux
> /dev/sda6 3539 6445 23350446 83 Linux
> /dev/sda7 6446 7632 9534546 83 Linux
> /dev/sda8 7633 9212 12691318+ 83 Linux
>
> Note that it skips sda3 to make sda4 the extended partition. Off-hand I
> don't know of a way to fix this, but maybe I'll think of something.
>
> Karl
>
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