GRUB not detecting Windows 7 (surprise!)
BOOOOORING, I know! But I'm ONE MORE guy who can't quite figure out how to boot my win7 partition. It's been two months now and I have to get back in there for some proprietary stuff that just doesn't work in wine.
I can mount the partition, access the files, but os-prober just will not see it. I'm scared to even place the windows restore CD in my optical drive, because Precise is running oh-so-nicely and I don't want to screw it all up!
The output of sudo fdisk -l:
my bootinfo URL: http://paste.ubuntu.com/1276068/
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
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x07f2837e
Device Boot Start End Blocks Id System
/dev/sda1 63 208844 104391 de Dell Utility
/dev/sda2 208896 41172991 20482048 83 Linux
/dev/sda3 * 41172992 216954241 87890625 7 HPFS/NTFS/exFAT
/dev/sda4 216954878 976771071 379908097 5 Extended
/dev/sda5 216954880 951328767 367186944 83 Linux
/dev/sda6 951330816 964028415 6348800 82 Linux swap / Solaris
/dev/sda7 964030464 976771071 6370304 82 Linux swap / Solaris
What should I do? Try the windows CD and hope for the best? Is it possible the problem is in the VBR of /dev/sda3? If so, how can I replace just that?
Cheers, thanks for taking the time to help aNOTHER guy through this common stumbling block.
Re: GRUB not detecting Windows 7 (surprise!)
Moved to other OS as it really is a Windows repair issue.
It probably is fixable, but you over wrote the Windows boot partition. Normal installs of Windows 7 have a hidden 100MB boot/repair partition and the main install. You are missing two key boot files.
Windows Boot files:
/boot.ini /ntldr /NTDETECT.COM
Vista/7 (with 7 the first two files are usually in a separate 100MB boot partition)
/bootmgr /Boot/BCD /Windows/System32/winload.exe
You are missing bootmgr & the BCD. I did see one user who just copied bootmgr & the BCD into his system from his repairCD. But of course he then had to edit the BCD as the defaults were the repair not the install.
For Windows repair to work you also need the boot flag (in Windows make active) on your sda3. It was on the now missing Windows boot partition. Windows will only repair the boot of the partition with the boot flag. And that partition has to be formated NTFS and a primary partition (which yours is).
You do have a Windows repairCD or USB? You need a current version repairCD or Linux liveCD for every operating system you have installed. If you have access to another Windows 7 same 64 or 32 bit version you can make a repair CD.
Make your own Windows repairCD (not vendor recovery):
Windows 7 repair USB, Also Vista if service pack installed
Windows 8 UEFI repair USB must be FAT32
How to Boot to the System Recovery Options in Windows 7
fix boot loader With screen shots from full Windows install media