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I have just installed Ubuntu. It has been a long painful road as I've made every mistake possible. Finally things are looking up. When I turn on the computer I get to a boot menu. Ubuntu works, but windows does not.

If I try to select windows it goes to a black screen, then back to the boot menu.

I believe the issue is that the boot menu is trying to open up windows from dev/sda1 but in reality windows is in dev/sda2. This results in a black screen happening for about five seconds and then it takes me back to the boot menu! Please help! I'd love to keep Ubuntu, but I need to access Windows.

Here is the complete boot info log I got:

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

=> Lilo is installed in the MBR of /dev/sda.

sda1: __________________________________________

File system:       ntfs
Boot sector type:  Grub2 (v1.99)
Boot sector info:  Grub2 (v1.99) is installed in the boot sector of sda1 
                   and looks at sector 781374472 of the same hard drive 
                   for core.img. core.img is at this location and looks 
                   for (,msdos5)/boot/grub on this drive. No errors found 
                   in the Boot Parameter Block.
Operating System:  
Boot files:        /bootmgr /Boot/BCD

sda2: __________________________________________

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

sda3: __________________________________________

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

sda5: __________________________________________

File system:       ext4
Boot sector type:  -
Boot sector info: 
Operating System:  Ubuntu 11.10
Boot files:        /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sda6: __________________________________________

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

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

Drive: sda _______________________________________

Disk /dev/sda: 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 Sector End Sector # of Sectors Id System

/dev/sda1 * 2,048 206,847 204,800 7 NTFS / exFAT / HPFS /dev/sda2 206,848 695,974,276 695,767,429 7 NTFS / exFAT / HPFS /dev/sda3 695,975,934 976,771,071 280,795,138 5 Extended /dev/sda5 695,975,936 968,652,799 272,676,864 83 Linux /dev/sda6 968,654,848 976,771,071 8,116,224 82 Linux swap / Solaris

"blkid" output: ____________________________________

Device UUID TYPE LABEL

/dev/sda1 907251C67251B1A8 ntfs System Reserved /dev/sda2 60EC5404EC53D2C0 ntfs
/dev/sda5 cb187c79-003c-4187-a465-a65086a232e0 ext4
/dev/sda6 34f6876e-7e0e-4c27-aef7-54250c4fdea7 swap

================================ Mount points: =================================

Device Mount_Point Type Options

/dev/sda5 / ext4 (rw,errors=remount-ro,commit=0)

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

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1 Answer

up vote 2 down vote accepted

I have recently run into an issue with GRUB as well. Here is my post: http://askubuntu.com/questions/119597/grub-rescue-error-unknown-filesystem/119661#119661.

Boot into Ubuntu. Download and run boot-repair to fix your issue. Choose "Recommended Repair (repairs most frequent problems)" option.

Actually, it looks like you have Lilo, so this solution may not work for you. As an option, you could replace Lilo with GRUB, as GRUB is the most popular boot loader.

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Worked flawlessly. Thank you :). –  Jon Mcdonald Apr 15 '12 at 2:47
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