gparted destroying my backup drive?

I’m ultimately about to ask about partition recovery but please read on for the specifics!

Well today has been a techno disaster

Windows went down so booted to an old 6.06 lts ubuntu live cd to fix the mess.

Decided to do a backup of my important files first so connected my 1TB drive with lots of important files…..but of course ubuntu couldn’t write to ntfs properly back then so hit a problem.

To solve it I fired up parted switched to my backup drive. Which had all the options grayed out as it was mounted.

No matter. Terminal > sudo umount /dev/sdb

….not found.

After a seconds thought I right clicked the desktop icon for the drive and chose eject. Then refreshed parted. Options ungrayed result.

Entered two changes: resize the original ntfs backup partition with all of my files on it to leave 7odd th at the end. And reformat that empty space with extra3.

Selected option to write changes to disk.

Task one started then suddenly ubuntu remounted the drive of its own accord before the first task had completed. I can only assume it has some misguided urge to mount external disks.

An error screen also popped up which I closed too quickly without reading it as I wrongly concluded it was the second new partition which had also been mounted.

Now gparted shows the disk as divided into two with both marked as of unknown filesystem. The second takes up no actual space but appears on the list. The first has maintained its boot flag.

Help how do I recover my backup partition??
Sorry for typos Android phone prediction run amoc

Parted = gparted

Th =gb
Sorry for typos Android phone prediction run amoc

Parted = gparted

Th =gb
Sorry for typos Android phone prediction run amoc

Parted = gparted

Th =gb

I once had a similar problem and TestDisk was able to recover the partition

http://www.cgsecurity.org/wiki/TestDisk

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says:

I once had a similar problem and TestDisk was able to recover the partition
http://www.cgsecurity.org/wiki/TestDisk
References :