Clevo M770cuh seagate momentus hd potential problem?

Hi,

I've got a potential problem either with my clevo m770cuh or the seagate momentus 7200rpm 500gb hard drive. My problem is that I cannot install latest ubuntu with win7 in dual boot configuration. For example, if i have win 7 installed and then use the ubuntu cd to install ubuntu, the cd says my computer has no operating systems on it. The other way around if I have ubuntu installed on it and then try to install win 7, win 7 recognizes the linux partition but will not allow me to install win 7 unless i totally delete ubuntu partition. Does anyone have or had a problem like this, or think that it is a problem with my hard drive, or is it a problem with my laptop (motherboard, controller, etc.) I've updated it with the latest bios , ec, pkhetan posted here on this site. One problem I did have where I updated the ec, my laptop wouldn't turn on until i removed the battery and put it back in. So far, i've tried to revert back to old ec and bios which didn't help. Flashed my bios and ec to newest ones without problem. I've got no problems except the above. Thanks in advance for any help.

 

It was a gpt partition table which caused the problem. I don't know how I created it in the first place though. These are the steps I took (not necessary for everybody) to solve my problem. After searching i found this post

[ubuntu] after GPT the disk is gone - Ubuntu Forums

Which led me to this site

GPT fdisk Tutorial

I used the tool to convert my partitions from gpt to mbr. It seemed to work and it didn't erase my partitions, however after reboot i couldn't startup win 7 or repair them. However now Ubuntu cd recognized them. I had a previously saved image of win 7 so I reimaged my hard drive and then I then tried to install Ubuntu which recognized the win 7 partition again with no problem and installed successfully. More info at this post.
[ubuntu] Ubuntu cd does not see win 7 partition - Ubuntu Forums