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I've messed up with dynamic partitions and I need to backup
I had a dual boot of winxp on C, and win7 on S. All partitions are NTFS.
It was in this order: C, S, (ext4 7gb partition), F.
I originally wanted to remove C and the ext4 partition, to have one larger win 7 partition. I had a lot of data I wanted to keep on S and F, and was pretty naive.
I removed the ext4 and the C partition, and then right clicked on "extend partition" in the windows 7 disk management tool. I think doing so transformed my partitions into dynamic ones. I had a warning, and did not bother to search what those were. Again, shame on me.
Seeing that it did not boot anymore (NTLDR missing), I used a live CD to try to fix the problem. I first used the disk tool (not gparted) to set my S partition to active. The throbber wheel kept spinning. When I exited the disk utility it crashed (first 'uh oh'). I tried gparted, which displayed several errors too.
I tried many things:
* reinstalling windows xp on the C: doing so did not let me read the S or F
* the boot repair live CD https://help.ubuntu.com/community/Boot-Repair
* the Gparted live CD to use testdisk. Cumbersome as it could not boot in graphic mode due to some radeon problem.
I don't even know what could be the issue, testdisk tells me those partitions are not dynamic (they have the 0x7 code, not 0x42). I managed to backup some files from the F partition to a 8GB usb drive using the testdisk copy feature, but I have a lot more data I want to be able to copy. Being able to read it from a live CD would be enough.
A bigger worry is that testdisk unexpectedly quits (crashes?) when I try to scan files in the S partition.
I'm suspecting partition corruption, I can backup data from F, but S seems unreadable.
I've also read that there is a different between classic MBR and GPT boot record.
In both modes (intel and GPT), testdisk crashes. I've also read that there are dynamic disks and dynamic partitions, I'm not sure if those two things are the same.
So, my questions:
* What tool should I start trying to use to diagnostic my problem further if I don't know everything ?
* What other problem should I look into ?
* any other testdisk option or ntfs detail I should learn ?
I'm still not ready to pay 100 dollars for a software that can analyse a corrupted software.
I'm not sure dynamic partitions are the problem, but it's very probable Gparted or the live CD messed up my partitions in some way.
I know how to use linux and other tools, but I mostly use windows 7 (gaming, visual C++ etc).
Any idea ?