Grub error 5,can't get to windows boot

[Lambertus]

Hi there

I am using Ubuntu 11.4
I had OpenSuse 11.4 replaced by ubuntu 11.4 during the initial installation of ubuntu 11.4

When rebooting grub loading stage 1.5 fails with error 5
with no way to go back to windows

Somewhere i read use fixmbr from the windows install cd but the program is nowhere to be found.

I am using Windows 7 on an AMD X64 machine.

Who could help me?

Thanks


I did try bootsect.exe but that gave an error

I have reinstalled OpenSuse 11.4, same problem.


So my Windows 7 system looks unreachable.

I need urgent help, nothing works any more

[Lostfarmer]

From grub manual:

error 5 : Partition table invalid or corrupt
This error is returned if the sanity checks on the integrity of the partition table fail. This is a bad sign.

Boot into a live linux cd or if the installed linux works, post the last line '01f0' of

  XXX dd if=/dev/sda count=1 bs=512 | hexdump

the XXX=command is ran with root permissions. Precede command with 'su' or 'sudo' , it will depend on linux used.

On line 01f0 , the last digits needs to be 'aa55'.

If the integrity bits are missing , maybe some one can tell you how to fix easier then my way.

edit: the "|" in command above is called pipe and is the CAP of key '\'.

[Lambertus]

Thanks for the help

I have just a few minutes ago solved my problem by replacing grub
with gag4.10 bootmanager.

It enabled me to restore the information to boot from windows.

Took me the whole night to get there


Thanks again