Windows "missing operating system" after Ubuntu 12.10 instal?

[jp1016]

Hi, I used rEFIt to install Ubuntu 12.10 on my macbook pro, which also had windows 7 on it. Now when I try to use the windows partition, it displays the message "missing operating system" on a black screen. If there's any other information needed I'll post more.

Any help is appreciated! Thanks!

[fdrake]

Hi, I used rEFIt to install Ubuntu 12.10 on my macbook pro, which also had windows 7 on it. Now when I try to use the windows partition, it displays the message "missing operating system" on a black screen. If there's any other information needed I'll post more.

Any help is appreciated! Thanks!

you have to fix the win partition with a windows cd. select the part that says repair windows or something like that..

[jp1016]

Now if I have lost that cd, is there anything I can do

[Bucky Ball]

Thread moved to Installation & Upgrades


Try Boot Repair ...

https://help.ubuntu.com/community/Boot-Repair

I don't know what rEFIT is but that may negate Boot Repair working.

Are you positive you haven't wiped Windows in the process of installing? If you can boot from the LiveCD, open Gparted and post a screen shot of your hard drive partitioning.

You can also open a terminal and post the output of:

sudo blkid

[jp1016]

I can see all my windows files from my mac osx finder. Do I use that terminal code in OSX or Ubuntu?

[jp1016]

I also created a recovery disk using a different laptop? Will it work? and how do I boot into the cd on my mac?

[Bucky Ball]

Have you tried Boot Repair??? Create a bootable disk or run it from the Ubuntu liveCD (it will install to that from Software Centre).

You run that code in a terminal in Ubuntu. Who knows, could work in the terminal in Mac, too ...

[fdrake]

I also created a recovery disk using a different laptop? Will it work?

NO recover cd are configurated only for that spec hardware

and how do I boot into the cd on my mac?

in order to boot from cd/usb you have to select the boot device from the bios. I do not have a mac but if you google around i am sure you'll find a way.

[jp1016]

Well I tried Boot Repair, and it uninstalled grub, and I reinstalled it onto the same linux partition. Was I supposed to continue without installing it again? What should I do now.

[Bucky Ball]

Boot Repair shouldn't uninstall grub unless you ask it. Sure it didn't just install it somewhere else? In Linux lingo, in a straightforward setup, it should be on the beginning of sda, first drive.

Boot Repair should rewrite your grub with any OSs it detects then write it to the correct place ...