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I had Windows 8 installed on a partition. Installed Ubuntu 12.10 on another, it works fine, but when I try to boot Windows 8, it says

error: device format "ldm/84ec4a8-84ad-11e1-a109-002655b2e743/Volume1" invalid: must be (f|h), with 0 <= N < 128.
Press any key to continue...

And then on the next screen

A disk error occured
Press Ctrl+Alt+Del to restart
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Did you use and external drive? – Farid Nov 20 '12 at 17:58
@Farid Nope, I didn't. – a_rahmanshah Nov 20 '12 at 18:01

Well I have the same problem. It's not that easy to make Windows 8 dual-bootable with another OS. This should help you (Answer 1). But you have to re-install Windows to do that, and that's where the next problem came up for me: Trying to install Win8 from DVD, the installer doesn't recognize partitions any more... I think formatting the Windows Partition (C, in most cases) could be a solution, but I don't know how to do that in Ubuntu.

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Is the LDM from dynamic partitions? Dynamic also on gpt as LDM

GRUB2 2.00 recognizes defunct LDM headers from old dynamic partitions

What do these Windows tools show? EASEUS Partition Master

Partition Wizard

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