Can't boot Win7 after installing Ubuntu

[WhiteLion]

This might sound like the usual problem, but it isn't. I had win 7 installed, decided to install ubuntu on this desktop computer. I had a windows partition, and a few other partitions, one with a wubi install of windows that I never used, so I decided to delete it, while installing ubuntu 10.10. I had free unallocated space for installing ubuntu, which was contiguous to the partition of the wubi install of ubuntu, so I decided to merge them, I did all this in gparted while installing ubuntu 10.10, 2gb swap, then 15gb root and all that remained to home. Everything worked out fine (of course I never touched the win7 partition). After reboot grub doesn't show win 7, so I thought I'll just add it to grub, followed a few tutorials on this forum, but nothing worked.
Then I remembered that the partition which I deleted to merge with the ubuntu partition, was an Active partition, and soon found out that my win7 partition was not active! (this is probably because I installed win 7 while I had still win vista, so that active partition was where vista was). So now a ~100mb apparently unallocated partition was the active partition (win 7 hidden boot partition?), and trying the Startup repair of win 7 cd doesn't work, tried bootrec /fixboot, successfully, but bootrec /rebuildbcd can't find any Windows installation, even after setting the win7 partition as active with DiskPart.
I don't know if this is the right place to post this, as this is almost entirely a windows problem, but I just wanted to have Ubuntu working alongside Windows (I use a lot adobe's sw, which runs sadly only on windows, otherwise I would use only ubuntu).
Please let me know what can I do! Thank you!

[Rubi1200]

Hi and welcome to the forums :)

The best thing to do right now is the following:

Boot the computer with a LiveCD choosing to try not install Ubuntu.

At the live desktop, download and run the boot info script linked at the bottom of my post (instructions included).

Copy/paste the contents from the text file that is generated and post it back here.

The results will tell us what is where and make offering solutions easier.

Thanks.

[WhiteLion]

Hi and welcome to the forums :)

Boot the computer with a LiveCD choosing to try not install Ubuntu.


Hi, thanks for the help! I ran the boot info script in Ubuntu, not the live cd (I've read in the instructions "Boot into any Linux based operating system"). Is it ok? If not I'll do it on the live cd.

PS: this entry in grub is the one I added manually, following instructions of this forum, win 7 is on sda3:
### BEGIN /etc/grub.d/11_Windows ###
menuentry “Windows 7″ {
set root=(hd0,3)
chainloader +1
}
### END /etc/grub.d/11_Windows ###

2ndPS: sdb is just a backup disk, there are no win installations there (and never were).

Here is the result, and thanks again!

Boot Info Script 0.55 dated February 15th, 2010

============================= Boot Info Summary: ==============================

=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #6 for (,msdos6)/boot/grub.
=> Windows is installed in the MBR of /dev/sdb

sda1: __________________________________________________ _______________________

File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed:
mount: unknown filesystem type ''

sda2: __________________________________________________ _______________________

File system: Extended Partition
Boot sector type: -
Boot sector info:

sda5: __________________________________________________ _______________________

File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 10.10
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sda6: __________________________________________________ _______________________

File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files/dirs:

sda7: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows XP
Boot sector info: According to the info in the boot sector, sda7 starts
at sector 63.
Operating System:
Boot files/dirs:

sda3: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files/dirs: /Boot/BCD /Windows/System32/winload.exe /wubildr.mbr
/wubildr

sdb1: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows XP
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

sdb2: __________________________________________________ _______________________

File system: Extended Partition
Boot sector type: -
Boot sector info:

sdb5: __________________________________________________ _______________________

File system: vfat
Boot sector type: MSWIN4.1: Fat 32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

=========================== Drive/Partition Info: =============================

Drive: sda ___________________ __________________________________________________ ___

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
28 heads, 40 sectors/track, 1744218 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sda1 * 1,312 273,279 271,968 82 Linux swap / Solaris
/dev/sda2 3,907,582 922,685,966 918,778,385 f W95 Ext d (LBA)
Extended partition linking to another extended partition
/dev/sda5 3,907,584 33,202,175 29,294,592 83 Linux
/dev/sda6 33,204,224 409,591,807 376,387,584 83 Linux
/dev/sda7 409,603,887 922,685,903 513,082,017 7 HPFS/NTFS
/dev/sda3 922,685,967 1,045,567,103 122,881,137 7 HPFS/NTFS


Drive: sdb ___________________ __________________________________________________ ___

Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sdb1 63 956,285,189 956,285,127 7 HPFS/NTFS
/dev/sdb2 956,285,190 976,768,064 20,482,875 f W95 Ext d (LBA)
/dev/sdb5 956,285,253 976,768,064 20,482,812 b W95 FAT32


blkid -c /dev/null: __________________________________________________ __________

Device UUID TYPE LABEL

/dev/sda2: PTTYPE="dos"
/dev/sda3 70C4DA75C4DA3CD2 ntfs
/dev/sda5 8d00537c-4e54-4d2f-bc68-31d84370271a ext4
/dev/sda6 d127b20e-9ed8-4600-aee5-31b1d593449c ext4
/dev/sda7 01C9CA761C81F380 ntfs
/dev/sda: PTTYPE="dos"
/dev/sdb1 42341D2B341D2387 ntfs My Book
/dev/sdb2: PTTYPE="dos"
/dev/sdb5 460A-5191 vfat BACKUP
/dev/sdb: PTTYPE="dos"

============================ "mount | grep ^/dev output: ===========================

Device Mount_Point Type Options

/dev/sda5 / ext4 (rw,errors=remount-ro,commit=0)
/dev/sda6 /home ext4 (rw,commit=0)
/dev/sda7 /media/01C9CA761C81F380 fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_ permissions)
/dev/sda3 /media/70C4DA75C4DA3CD2 fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_ permissions)
/dev/sdb5 /media/BACKUP vfat (rw,nosuid,nodev,uhelper=udisks,uid=1000,gid=1000, shortname=mixed,dmask=0077,utf8=1,showexec,flush)
/dev/sdb1 /media/My Book fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_ permissions)


=========================== sda5/boot/grub/grub.cfg: ===========================

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}

function recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}

function load_video {
insmod vbe
insmod vga
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 8d00537c-4e54-4d2f-bc68-31d84370271a
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 8d00537c-4e54-4d2f-bc68-31d84370271a
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
if [ "${recordfail}" = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 2.6.35-24-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 8d00537c-4e54-4d2f-bc68-31d84370271a
linux /boot/vmlinuz-2.6.35-24-generic root=UUID=8d00537c-4e54-4d2f-bc68-31d84370271a ro quiet splash
initrd /boot/initrd.img-2.6.35-24-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-24-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 8d00537c-4e54-4d2f-bc68-31d84370271a
echo 'Loading Linux 2.6.35-24-generic ...'
linux /boot/vmlinuz-2.6.35-24-generic root=UUID=8d00537c-4e54-4d2f-bc68-31d84370271a ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.35-24-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 8d00537c-4e54-4d2f-bc68-31d84370271a
linux /boot/vmlinuz-2.6.35-22-generic root=UUID=8d00537c-4e54-4d2f-bc68-31d84370271a ro quiet splash
initrd /boot/initrd.img-2.6.35-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 8d00537c-4e54-4d2f-bc68-31d84370271a
echo 'Loading Linux 2.6.35-22-generic ...'
linux /boot/vmlinuz-2.6.35-22-generic root=UUID=8d00537c-4e54-4d2f-bc68-31d84370271a ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.35-22-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/11_Windows ###
menuentry “Windows 7″ {
set root=(hd0,3)
chainloader +1
}
### END /etc/grub.d/11_Windows ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 8d00537c-4e54-4d2f-bc68-31d84370271a
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 8d00537c-4e54-4d2f-bc68-31d84370271a
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
if [ "x${timeout}" != "x-1" ]; then
if keystatus; then
if keystatus --shift; then
set timeout=-1
else
set timeout=0
fi
else
if sleep --interruptible 3 ; then
set timeout=0
fi
fi
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

=============================== sda5/etc/fstab: ===============================

# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda7 during installation
UUID=8d00537c-4e54-4d2f-bc68-31d84370271a / ext4 errors=remount-ro 0 1
# /home was on /dev/sda8 during installation
UUID=d127b20e-9ed8-4600-aee5-31b1d593449c /home ext4 defaults 0 2
/dev/sda1 none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0

=================== sda5: Location of files loaded by Grub: ===================


4.3GB: boot/grub/core.img
8.9GB: boot/grub/grub.cfg
3.6GB: boot/initrd.img-2.6.35-22-generic
3.7GB: boot/initrd.img-2.6.35-24-generic
5.4GB: boot/vmlinuz-2.6.35-22-generic
5.4GB: boot/vmlinuz-2.6.35-24-generic
3.7GB: initrd.img
3.6GB: initrd.img.old
5.4GB: vmlinuz
5.4GB: vmlinuz.old
=========================== Unknown MBRs/Boot Sectors/etc =======================

Unknown BootLoader on sda1

00000000 00 4d 00 1e 43 a6 00 5a ad 28 12 10 00 9c 0f 08 |.M..C..Z.(......|
00000010 00 00 1a 00 1e f2 4f be 72 82 a6 00 1e b6 11 00 |......O.r.......|
00000020 00 d1 00 1e 00 75 28 5e 1d 79 53 10 00 20 87 14 |.....u(^.yS.. ..|
00000030 00 00 78 00 1e 02 35 00 42 0b 48 07 10 00 ff 16 |..x...5.B.H.....|
00000040 08 00 00 6f 00 0f 76 a0 96 08 00 75 11 10 00 6e |...o..v....u...n|
00000050 19 00 00 02 44 00 0f 09 14 82 34 2f 3f 80 10 00 |....D.....4/?...|
00000060 b2 1b 00 00 45 00 0f 00 b5 f7 87 60 46 f9 0f 00 |....E......`F...|
00000070 00 f7 1d 00 00 b9 01 00 00 38 58 6a a8 00 b5 00 |.........8Xj....|
00000080 bc 0c 02 ec 13 80 bd 87 c4 c4 c9 01 4b 05 1d 66 |............K..f|
00000090 0b 00 20 00 cf 00 29 00 07 00 8b 00 52 02 00 d0 |.. ...).....R...|
000000a0 00 1e 00 0c f2 00 03 00 51 81 0e ff ff fd 00 05 |........Q.......|
000000b0 01 01 18 09 ab 80 14 81 03 05 80 30 0c 80 01 8d |...........0....|
000000c0 80 01 2a 99 80 01 36 80 40 3d 80 01 15 ff 01 06 |..*...6.@=......|
000000d0 00 e6 02 00 80 00 43 49 00 4d 5f 41 63 74 73 41 |......CI.M_ActsA|
000000e0 73 20 53 70 61 72 65 00 5d 65 73 00 63 72 69 70 |s Spare.]es.crip|
000000f0 74 69 6f 6e 40 00 00 54 68 65 20 8c 10 20 80 61 |tion@..The .. .a|
00000100 73 73 6f 63 69 61 01 10 00 20 69 6e 64 69 63 61 |ssocia... indica|
00000110 74 00 65 73 20 77 68 69 63 68 00 20 65 6c 65 6d |t.es which. elem|
00000120 65 6e 74 80 73 20 63 61 6e 20 73 01 28 00 20 6f |ent.s can s.(. o|
00000130 72 20 72 65 70 6c a0 61 63 65 20 74 80 26 6f 00 |r repl.ace t.&o.|
00000140 02 00 72 20 61 67 67 72 65 67 45 00 1c 64 06 19 |..r aggregE..d..|
00000150 2e 20 20 81 36 66 08 61 63 74 00 14 61 74 20 61 |. .6f.act..at a|
00000160 c3 04 20 01 25 6f 70 65 72 80 16 80 37 00 20 22 |.. .%oper...7. "|
00000170 68 6f 74 20 73 74 00 61 6e 64 62 79 22 20 6d 40 |hot st.andby" m@|
00000180 6f 64 65 20 69 73 80 0a 65 00 63 69 66 69 65 64 |ode is..e.cified|
00000190 20 6f 8c 6e 20 c0 1e 04 22 20 62 79 05 18 00 20 | o.n ..." by... |
000001a0 62 61 73 69 73 2e 00 40 00 41 4d 45 4e 44 c0 00 |basis..@.AMEND..|
000001b0 54 00 00 00 4c 4f 43 41 4c 45 00 00 00 47 72 6f |T...LOCALE...Gro|
000001c0 75 70 00 9e 66 81 53 c6 00 01 58 40 8a 80 03 41 |up..f.S...X@...A|
000001d0 5b 5a 38 40 50 4c c0 00 82 5e 59 00 02 00 70 72 |[Z8@PL...^Y...pr|
000001e0 65 66 3a 41 46 42 4d c3 0f 00 0e 44 8d 4e c2 05 |ef:AFBM....D.N..|
000001f0 80 3f 66 65 72 65 c6 6e 00 40 00 42 72 65 73 02 |.?fere.n.@.Bres.|
00000200

[amsterdamharu]

sda7: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows XP
Boot sector info: According to the info in the boot sector, sda7 starts
at sector 63.
Operating System:
Boot files/dirs:

Looks like Windows is found but not put in the grub.cfg, could you try the following command?


sudo update-grub
cat /boot/grub/grub.cfg | grep indo

Then post the output of it here?

[WhiteLion]

sudo update-grub
cat /boot/grub/grub.cfg | grep indoThen post the output of it here?

Output:
### BEGIN /etc/grub.d/11_Windows ###
menuentry “Windows 7″ {
### END /etc/grub.d/11_Windows ###

Edit: by the way, sda7 is not where windows 7 is, it's a storage partition I use, there are only common files, there isn't any OS installed

[amsterdamharu]

So is there a Windows in the menu when you boot?

[WhiteLion]

So is there a Windows in the menu when you boot?

Grub doesn't show up at all when I power on the pc, it goes straight to Ubuntu.

[amsterdamharu]

Try holding down the shift key to show the menu.

[presence1960]

============================= Boot Info Summary: ==============================

=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #6 for (,msdos6)/boot/grub.
=> Windows is installed in the MBR of /dev/sdb

GRUB is looking to the wrong partition that is why you don't get a GRUB menu. It should be pointing to partition #5 (sda5).

You can save the ubuntu installation by boot ing from the Live CD/USB. Choose try ubuntu without installing. When the desktop loads open a terminal and run
sudo mount /dev/sda5 /mntThis will mount your ubuntu root partition. Next in terminal run
sudo grub-install --root-directory=/mnt/ /dev/sda This will put GRUB on the MBR and pointing to the correct partition.

As far as windows you may need to reinstall because if you installed windows 7 with Vista your windows 7 boot files were combined with Vista's. When you removed Vista you removed the files necessary to boot 7.
I am only ok with windows, but if meierfra is around he may be able to save your windows without reinstalling.

Your sda3 is a system reserved for windows 7. But if sda7 is your windows partition, which it probably is because you installed 7 after Vista it will never boot because a sole windows OS needs to be a primary partition. sda7 is logical. This makes a lot of sense because the default behavior for windows when installing a second windows OS is to make the new OS in a logical partition.

[IWantFroyo]

You have to back up your Windows 7, then erase your entire disk. Partition and install Ubuntu, then do the same with Windows. If you just put Linux in, it sometimes tends to corrupt some of the important Windows stuff. Just a precaution for people who have used their Windows system to save big programs before deciding to use Ubuntu.

[presence1960]

=========================== Drive/Partition Info: =============================

Drive: sda ___________________ __________________________________________________ ___

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
28 heads, 40 sectors/track, 1744218 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sda1 * 1,312 273,279 271,968 82 Linux swap / Solaris
/dev/sda2 3,907,582 922,685,966 918,778,385 f W95 Ext d (LBA)
Extended partition linking to another extended partition
/dev/sda5 3,907,584 33,202,175 29,294,592 83 Linux
/dev/sda6 33,204,224 409,591,807 376,387,584 83 Linux
/dev/sda7 409,603,887 922,685,903 513,082,017 7 HPFS/NTFS
/dev/sda3 922,685,967 1,045,567,103 122,881,137 7 HPFS/NTFS

The red above is probably not a good sign!

I would back up any important data, format and partition the disk the way you want it. Install windows first then reinstall ubuntu.

[WhiteLion]

Try holding down the shift key to show the menu.

Ok, did that and the Grub menu doesn't have win7.



Your sda3 is a system reserved for windows 7. But if sda7 is your windows partition, which it probably is because you installed 7 after Vista it will never boot because a sole windows OS needs to be a primary partition. sda7 is logical. This makes a lot of sense because the default behavior for windows when installing a second windows OS is to make the new OS in a logical partition.

Ubuntu is running just fine, the problem is with windows 7. When I uninstalled Vista Win7 was still running fine, but now I'm afraid I formatted the active partition where Win7 had it's boots files, so I don't know how to repair it, as Win7 recovery doesn't work. Sda3 is where win7 is installed, there is nothing in sda7!
Thanks to each of you for the help so far, I would really like to recover win7, I can't use adobe's products, particularly lightroom, without it.

PS: I'm going to be on vacation for the next few days, probably won't have access to internet.

[WhiteLion]

You have to back up your Windows 7, then erase your entire disk. Partition and install Ubuntu, then do the same with Windows. If you just put Linux in, it sometimes tends to corrupt some of the important Windows stuff. Just a precaution for people who have used their Windows system to save big programs before deciding to use Ubuntu.

If I use this last case resort, should I install first Windows or Ubuntu? Because presence1960 suggested first Win than Ubuntu.

[wilee-nilee]

If I use this last case resort, should I install first Windows or Ubuntu? Because presence1960 suggested first Win than Ubuntu.

Windows first is preferred.:)

[amsterdamharu]

Strange that the boot info script says that win7 boot sector is found on sda7 and winXP boot sector is found on sda3.

Anyway, you can see the content of sda3 and know that it's Windows 7.

You say there is no Windows 7 in the boot menu but the output of the commands you posted show a menu entry for Windows 7. Did you mean there is no working menu entry for Windows 7?

You can add the entry manually by doing the following:
press alt + F2, type "gksu gedit" and click run.
Open the file /etc/grub.d/40_custom and change the content of the file to:


#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
menuentry "Microsoft Windows 7 (on /dev/sda3)" {
insmod ntfs
set root='(hd0,6)'
search --no-floppy --fs-uuid --set 70C4DA75C4DA3CD2
drivemap -s (hd0) ${root}
chainloader +1
}Now execute the following command:

sudo update-grubNow when you reboot you should definitely have a windows 7 entry in the menu.

[vnoeal]

I'm new to this forum. I have the same problem that I can't boot my Window 7 after installing Ubuntu 10.10. I installed Ubuntu 10.10 over windows 7 and in the boot menu I can see both OS. I don't have any hassles booting Ubuntu and its working fine. I can't boot Windows 7, I think I have some problem with my boot record. Found below my Boot info script. Please help me.

Boot Info Script 0.55 dated February 15th, 2010

============================= Boot Info Summary: ==============================

=> Windows is installed in the MBR of /dev/sda

sda1: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Grub 2
Boot sector info: Grub 2 is installed in the boot sector of sda1 and
looks at sector 276980464 of the same hard drive for
core.img, but core.img can not be found at this
location. No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files/dirs: /bootmgr /Boot/BCD /Windows/System32/winload.exe /grldr

sda2: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

sda3: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

sda4: __________________________________________________ _______________________

File system: Extended Partition
Boot sector type: Unknown
Boot sector info:

sda5: __________________________________________________ _______________________

File system: vfat
Boot sector type: -
Boot sector info: According to the info in the boot sector, sda5 starts
at sector 63.
Operating System:
Boot files/dirs:

sda6: __________________________________________________ _______________________

File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 10.10
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sda7: __________________________________________________ _______________________

File system: swap
Boot sector type: -
Boot sector info:

=========================== Drive/Partition Info: =============================

Drive: sda ___________________ __________________________________________________ ___

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sda1 * 2,048 104,859,647 104,857,600 7 HPFS/NTFS
/dev/sda2 104,859,648 209,717,247 104,857,600 7 HPFS/NTFS
/dev/sda3 209,717,304 263,639,622 53,922,319 7 HPFS/NTFS
/dev/sda4 263,641,086 312,576,704 48,935,619 5 Extended
/dev/sda5 283,209,948 312,576,704 29,366,757 bc Acronis BackUp
/dev/sda6 263,641,088 282,277,887 18,636,800 83 Linux
/dev/sda7 282,279,936 283,209,727 929,792 82 Linux swap / Solaris


blkid -c /dev/null: __________________________________________________ __________

Device UUID TYPE LABEL

/dev/sda1 BE7ED7067ED6B67D ntfs
/dev/sda2 DCAEC24DAEC21FBE ntfs DATA STORE
/dev/sda3 6E64046C640438FB ntfs BAKEUPS
/dev/sda4: PTTYPE="dos"
/dev/sda5 B305-089D vfat ACRONIS SZ
/dev/sda6 73248553-b766-40a1-94d4-dba86dd1a2b4 ext4
/dev/sda7 e0c44820-9068-4e31-a4ca-d199b3dda6a8 swap
/dev/sda: PTTYPE="dos"

============================ "mount | grep ^/dev output: ===========================

Device Mount_Point Type Options

/dev/sda6 / ext4 (rw,errors=remount-ro,commit=0)
/dev/sr0 /media/UDF Volume udf (ro,nosuid,nodev,uhelper=udisks,uid=1000,gid=1000, iocharset=utf8,umask=0077)


=========================== sda6/boot/grub/grub.cfg: ===========================

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}

function recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}

function load_video {
insmod vbe
insmod vga
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 73248553-b766-40a1-94d4-dba86dd1a2b4
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 73248553-b766-40a1-94d4-dba86dd1a2b4
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
if [ "${recordfail}" = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 2.6.35-24-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 73248553-b766-40a1-94d4-dba86dd1a2b4
linux /boot/vmlinuz-2.6.35-24-generic root=UUID=73248553-b766-40a1-94d4-dba86dd1a2b4 ro quiet splash
initrd /boot/initrd.img-2.6.35-24-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-24-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 73248553-b766-40a1-94d4-dba86dd1a2b4
echo 'Loading Linux 2.6.35-24-generic ...'
linux /boot/vmlinuz-2.6.35-24-generic root=UUID=73248553-b766-40a1-94d4-dba86dd1a2b4 ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.35-24-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 73248553-b766-40a1-94d4-dba86dd1a2b4
linux /boot/vmlinuz-2.6.35-22-generic root=UUID=73248553-b766-40a1-94d4-dba86dd1a2b4 ro quiet splash
initrd /boot/initrd.img-2.6.35-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 73248553-b766-40a1-94d4-dba86dd1a2b4
echo 'Loading Linux 2.6.35-22-generic ...'
linux /boot/vmlinuz-2.6.35-22-generic root=UUID=73248553-b766-40a1-94d4-dba86dd1a2b4 ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.35-22-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 73248553-b766-40a1-94d4-dba86dd1a2b4
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set 73248553-b766-40a1-94d4-dba86dd1a2b4
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sda1)" {
insmod part_msdos
insmod ntfs
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set be7ed7067ed6b67d
chainloader +1
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

=============================== sda6/etc/fstab: ===============================

# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda6 during installation
UUID=73248553-b766-40a1-94d4-dba86dd1a2b4 / ext4 errors=remount-ro 0 1
# swap was on /dev/sda7 during installation
UUID=e0c44820-9068-4e31-a4ca-d199b3dda6a8 none swap sw 0 0

=================== sda6: Location of files loaded by Grub: ===================


141.8GB: boot/grub/core.img
140.1GB: boot/grub/grub.cfg
136.1GB: boot/initrd.img-2.6.35-22-generic
136.1GB: boot/initrd.img-2.6.35-24-generic
141.8GB: boot/vmlinuz-2.6.35-22-generic
141.8GB: boot/vmlinuz-2.6.35-24-generic
136.1GB: initrd.img
136.1GB: initrd.img.old
141.8GB: vmlinuz
141.8GB: vmlinuz.old
=========================== Unknown MBRs/Boot Sectors/etc =======================

Unknown BootLoader on sda4

00000000 42 84 7b 91 77 08 8c bf ea 29 8f 7a be bc 53 ff |B.{.w....).z..S.|
00000010 5b 05 49 0e 27 89 d0 7d dd 29 34 be a7 b6 57 fb |[.I.'..}.)4...W.|
00000020 32 9b 28 dc a3 0b ef f8 a9 b3 a2 60 95 48 ca d2 |2.(........`.H..|
00000030 5b 94 74 bd 22 7b 82 9c a3 cd a0 2a 7d ed 35 37 |[.t."{.....*}.57|
00000040 20 ae a7 d0 66 6a b3 9b 97 16 0a cf 0e 3d a8 3c | ...fj.......=.<|
00000050 0d 82 8e d5 9e 9b 05 a9 cd 2c 34 a3 78 50 65 b8 |.........,4.xPe.|
00000060 12 e0 19 35 61 1d f1 c7 87 0b 5e 20 c6 cf ac 03 |...5a.....^ ....|
00000070 7d 88 bb b3 ec 52 5b ac 34 73 bb ec 7c dd eb 2a |}....R[.4s..|..*|
00000080 11 72 02 95 a1 7a 13 5f 04 6b 89 60 9d 63 94 32 |.r...z._.k.`.c.2|
00000090 63 32 3d 46 fe 51 61 41 b9 ee eb dd 7f 5c 51 64 |c2=F.QaA.....\Qd|
000000a0 5b 60 cc 6e 82 58 18 13 ee 3d 81 32 67 81 13 43 |[`.n.X...=.2g..C|
000000b0 ea 89 6c f9 e0 c8 60 97 88 21 05 d0 f3 d5 95 58 |..l...`..!.....X|
000000c0 ed 99 a6 34 3f 8c e1 ab 6c 94 0e c2 96 99 5d 85 |...4?...l.....].|
000000d0 90 6b bb 20 1f 94 86 6d e6 c6 bb b1 11 3d 22 1a |.k. ...m.....=".|
000000e0 77 37 cd 8c a7 18 7f f9 e2 26 61 90 ab d2 11 5a |w7.......&a....Z|
000000f0 aa 96 61 51 77 1c ae 51 96 71 3c dd ce df 8f 2c |..aQw..Q.q<....,|
00000100 85 f9 e0 56 c3 ae 0b 79 66 5a 92 f5 df 00 d3 f3 |...V...yfZ......|
00000110 ed 9e 8e 5d 69 95 c4 30 4e 23 6b 4f 4e d9 7f 3a |...]i..0N#kON..:|
00000120 ee 43 db 27 39 36 d4 81 67 a8 f7 74 9d 98 bd ae |.C.'96..g..t....|
00000130 52 e5 e8 4f 25 43 8c cc 03 fc 7b e4 91 4c 90 c8 |R..O%C....{..L..|
00000140 30 d0 d8 18 2f af bc 4e 38 e2 1b 79 d7 35 e4 03 |0.../..N8..y.5..|
00000150 c8 41 06 7c b0 cb 7f 97 76 8d dd a0 d0 db f1 fb |.A.|....v.......|
00000160 28 b7 be 3d 82 a8 24 37 71 18 7a 1a a4 13 11 40 |(..=..$7q.z....@|
00000170 7d f9 6f e0 73 8b b6 83 81 09 f2 5a f3 9f e5 04 |}.o.s......Z....|
00000180 cf 21 8c f3 fd e5 a0 50 58 ba 53 d4 0a 43 57 c7 |.!.....PX.S..CW.|
00000190 08 8d cc a2 18 e3 2e 6d f8 1a e6 f6 cf 1b ca 83 |.......m........|
000001a0 67 28 5f 3d 24 8e eb 9f f9 09 42 4b 6b fd bf 83 |g(_=$.....BKk...|
000001b0 b3 0d 63 e4 b1 7a e8 1e 9c d1 d6 18 57 ba 00 01 |..c..z......W...|
000001c0 c1 ff bc fe ff ff de 98 2a 01 e5 19 c0 01 00 fe |........*.......|
000001d0 ff ff 05 fe ff ff 01 00 00 00 01 60 1c 01 00 00 |...........`....|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200

[WhiteLion]

Now when you reboot you should definitely have a windows 7 entry in the menu.
Yes, I could see it, but then windows couldn't find his boot files, so in the end I formatted everything and re-installed win and ubuntu, so now everything is working fine.
Thanks to each of you ubuntu fine users for the help, I really appreciate it.

to vnoeal: you should probably start your own thread, otherwise it becomes too chaotic.

[presence1960]

Yes, I could see it, but then windows couldn't find his boot files, so in the end I formatted everything and re-installed win and ubuntu, so now everything is working fine.
Thanks to each of you ubuntu fine users for the help, I really appreciate it.

to vnoeal: you should probably start your own thread, otherwise it becomes too chaotic.


=========================== Drive/Partition Info: =============================

Drive: sda ___________________ __________________________________________________ ___

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
28 heads, 40 sectors/track, 1744218 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sda1 * 1,312 273,279 271,968 82 Linux swap / Solaris
/dev/sda2 3,907,582 922,685,966 918,778,385 f W95 Ext d (LBA)
Extended partition linking to another extended partition
/dev/sda5 3,907,584 33,202,175 29,294,592 83 Linux
/dev/sda6 33,204,224 409,591,807 376,387,584 83 Linux
/dev/sda7 409,603,887 922,685,903 513,082,017 7 HPFS/NTFS
/dev/sda3 922,685,967 1,045,567,103 122,881,137 7 HPFS/NTFS

That was probably the best thing to do because your partition table was messed up.