-Seagate Barracuda LP 1.5TB
-The drive is a single exFAT partition.
-Contains no operating system.
-OSX 10.6.8 x64
-Windows 7 Service Pack 1 x64
Early this weekend the culprit Hard Drive began showing empty folders, shortly after un-mounting itself. I performed a Repair via Disk Utility (first instinct), it fixed a handful of lines in the red - "Successfully Repaired" - following the Hard Drive Mounts as "Untitled" and empty. No, I do not have a screenshot of the Disk Utility Repair & it's script, I didn't anticipate reaching this forum (although if Disk Utility dumps this info somewhere I can retrieve it). A second Disk Utility repair warranted no fixes, claiming no errors. I pulled the hard drive and moved it to an open SATA port on my PC.
**Please Note: Plugging the Hard Drive via USB to a Windows operating system warrants a "Raw" result, unlike OSX which mounts fine via USB. Plugging in via SATA warrants the same results as OSX (Mounted Empty Drive).**
I run a "chkdsk (drive): /r " - it finds corrupted sectors, finishes the process, drive remains empty. At this point I panic - image the Hard Drive. I run a "chkdsk (drive): /f", finds no errors. I get a copy of R-Studio, begin recovering files, although under interesting conditions - it shows exFAT, HFS, and HFS+ recoverable partitions nearing a dozen varied and overlapping sectors - even crashing the Software when selecting from some of the Partitions "Recognized". Naturally, very few folder structures were recovered, most files are present, but without file names. I'm already %75 complete recovering the files, a fail scenario here merely means no icing on the cake -- and to wade off other similar OSX exFAT Corrupted users straight to Data Recovery to save time.
OK! So here's what I've done with TestDisk:
2. Select Disk
3. Partition Table Type DEFAULTS [None]
3.1. SELECT [Intel]
5. No Partitions Are Found, [Quick Search]
5.1. [Quick Search] & [Deeper Search] Results 5.2. Re-Entry to [Quick Search] shows the following: 6. [Options]
6.1. Enable Expert Mode
7.1. A Single Partition is Listed
7.2. "1 * SpeedStor 255816 161 14 511633 67 26 4109694196"
7.3. No [Boot] Option Exists
8.1. [Type] is currently set to [f4]
9. (BACK TO STEP 3) "Select the partition table type"
9.1. Select [None]
10. Select [Advanced]
10.1. Select [Boot] 10.2. **Please Note Selecting
- Crashes Software**
This has been my stopping point before further scouring this forum for situations similar to mine concerning exFAT - none of which to this point are similar at all what-so-ever. I have no idea how to proceed, my conditions seem unique. Please troubleshoot me. I'm open to Ideas and to further providing information that may help repair the Hard Drive, if possible. I anticipated failure from the get-go and already began recovery via other means.