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I'm lost. With the new option in Ubuntu 12.10: "Use LVM with the new Ubuntu installation" I have not thought that my Windows partition would be getting lost. I did it in the trust that Ubuntu would have warned me. Now it seems like all my files on the disk were deleted.

As you must understand, I am totally new in LVM, just thought it is worth a try. I already tried boot-rescue, there is no MBR to fix anymore. After reinstalling GRUB, no Windows is selectable. I also tried gparted, after I wondered that I couldn't mount the Win partition, but there is no Win partition anymore. Only a boot block on top of my hd in fat format gives me a bit hope that my Windows with all my precious files (guess guys, they are that important) can be reanimated.

I've just not thought and were not warned that I could loose the other OS if I choose "Use LVM with the new Ubuntu installation". How can I get my boot option for Windows back? Is the Windows with its files deleted and lost so?

GParted shows me something similar to this:

................................................................................‌​
Partition - file System - Mount point - Size       - Used       - Unused     - Flag
.................................................................................
/dev/sda1 - fat32       - /boot/efi   - 190 MiB    - 902 KiB    - 189.12 MiB - boot
.................................................................................
/dev/sda2 - ext2        - /boot       - 244 MiB    - 44 MiB     - 199.4 MiB
 ................................................................................
/dev/sda3 - lvm2 pv     - ubuntu      - 465.34 GiB - 465.29 GiB - 48 MiB     - lvm 
.................................................................................
unallocated - 1.02 MiB
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Could you post a screen shot of Gparted? –  Dominic Jordan Hasford Oct 21 '12 at 23:54
    
Sorry, Since I don't own 10 reputation points (nah - that ain't silly) I am not allowed to post pictures due to spam protection "as mother says" –  Daniel Oct 22 '12 at 0:33
    
But it's like this: –  Daniel Oct 22 '12 at 0:33
    
But it's like this: ................................................................................‌​............................................. Partition - file System - Mount point - Size - Used - Unused - Flag............................................... /dev/sda1 - fat32 - /boot/efi - 190 MiB - 902 KiB - 189.12 MiB - boot................................................... /dev/sda2 - ext2 - /boot - 244 MiB - 44 MiB - 199.4 MiB ............................................................. /dev/sda3 - lvm2 pv - ubuntu - 465.34 GiB - 465.29 GiB - 48 MiB - lvm ....... unallocated - 1.02 MiB –  Daniel Oct 22 '12 at 0:40
    
From Ubuntu, can you access your windows partitions files or partition? –  Dominic Jordan Hasford Oct 22 '12 at 4:02
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1 Answer

when i messed up windows mbr and could not fix windows sturtup using windows disk this link helped me http://thameera.wordpress.com/2011/04/24/restoring-the-windows-mbr-using-a-ubuntu-live-cd-or-usb/ after executing commands i booted from windows dvd and fixed sturtup problems using boot repair on windows disk then to get ubuntu boot option back i booted from ubuntu cd and restored & updated grub,then i installed burg boot manager wich can see other systems perfectly.Thats how it worked for me hope it will help

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Well, thanks to the both of you who took a minute for responding. Since the GUID cannot be recognized by Win it seems like the logical partition set up as lvm really busted it. There is no way to get anything restored, even with the most sensitive boot loader. My opinion is that it could be worth to mention what lvm might do to other OS's. However - at least I got chicken! –  Daniel Oct 23 '12 at 20:02
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