Hi you guys, I`m in a bit of trouble here, I have this disk that I need to recover info from, it was reformated and all, so I started searching and discovered (I said discovered, because I am not a linux guy) Testdisk, tried it and liked it so much that I even repartioned my computer to have linux on it as well, I went with Ubuntu, and I tried Testdisk and searching for the partition that I need I think it found it but it says check_FAT: Bad jump in FAT partition, and I think that`s the partition I`m looking for because I remember I had my disks with fat32 filesystem, so please if you could help me. what can I do to recover the partition?

as what?

Boot a Live Gparted with a live session and boot it .

https://gparted.org/

Then post back the readout in code tags which is the hash mark on the toolbar in the advanced reply box.

My example:

Might not need to use sudo in gparted live session. I am not sure though. That is why I included it

In fact. Just checked and their command for fat partitions is

So disregard my parted -l command.
https://gparted.org/livecd.php

Hi, and thanks for your response, i tried Gparted on a virtual machine,and I got this error "end kernel panick-not syncing: attempted to kill the idle task"
and just hung there, with no response,anything else I can do?, oh and i reformated as NTFS

Any kernel panic is roughly equivalent to Windows' BSOD - reboot required.

Reformatted what, and why? Formatting typically eliminates the ability to recover data present prior to the formatting. It doesn't sound like you lost a partition or a filesystem. Rather, you corrupted one by formatting. If the old partition format is the same type, and the partitioning was not altered, you might get lucky with testdisk finding lost files. Replacing a FAT filesystem with an NTFS filesystem would be very destructive by comparison. Providing here output from parted -l as rokytnji demonstrated might allow someone to provide a more definitive outcome expectation.

You say you repartitioned to have (Ubuntu?) on a partition ostensibly, but you say later you were running Gparted in a VM. You need to clarify your environment, and detail better whatever you have done or intend to do.

If you have not resolved this problem, in addition to answering the questions in post 4, could you explain what you mean by 'have linux on my computer' means? Did you install Ubuntu on the same drive as the previously mentioned drive you reformatted? Did you create a separate partition? Was this partition created where the previous FAT partition you are trying to save data from existed?

Hi, and thanks for you response, and sorry for the delay on my answer, I repartiion my disk to have dual boot, not in the same disk I´m trying to recover but in other disk, so now I have ubuntu and windows in the same computer with the disk I´m tying to recover, that disk hasn´t been touched since I reformated, did I explain myself better now?

the good news is that reformatting doesn't re-zero or rewrite the disk with random data... regardless of file system, files themselves have flags pertaining to their type, such that recovery software, can retrive jpeg0, jpeg1, jpeg2, ... jpegnth, and so on, for most of the other file types, like pdf0, pdf1, pdf2, etc...

the bad news is that the titles can often be missing, so you have heaps of recovered files to sort..

If a drive is failing, it's a good idea to take a snapshot of it first thing, with ddrescue, and then perform recovery operations on the snapshot instead of on the drive itself.

The best thing of all, though of course, is having a backup to recover from.

I'd try to use testdisk to see if it can get data before you attempt any change.