windows 7 loader messes up grub

[Giovanni Dall'Olio]

Binary package hint: grub2

I have installed today's (april 25th) Lynx daily build on my laptop, on which WIndows7 is also installed.
The installation goes fine, but every time I boot the Windows system, log to it and then reboot, I get my system in a not-working state.

I can't load any operating system and I see this message on the screen:

"""no module name found
Aborted. Press any key to exit. (I pressed a key)
Broadcom UNDI PXE-2.1 v11.0.9
Copyright (C) 2000-2008 Broadcom Corporation
Copyright (C) 1997-2000 Intel Corporation
All rights reserved.
PXE-E61: Media test failure, check cable
PXE-M0F: Exiting Broadcom PXE ROM.
Operating System not found"""

I am not sure whether this is a message from GRUB or from window's boot loader; however, I tried to reinstall it multiple times and the problem is reproducible.
Tell me which files and logs you need me to post.

[Daniel Faulkner (daniel-faulkner)]

PXE is used to boot up using a network image. Please check that the boot order has your primary hard drive listed and that your hard drive is detected correctly in the BIOS.

[Giovanni Dall'Olio (dalloliogm-gmail)]

Sorry, I have resolved this bug and it happened to be a duplication of https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/482757 . It was caused by the software Dell Data Center on Windows that corrupted the MBR partition after the first Windows login.

you can close this, I am sorry I forgot I posted it.

[Colin Watson (cjwatson)]

Indeed, as you say. The version of GRUB in Natty has mechanisms to defend itself against this, so it shouldn't be a problem in the future.