I have an embarrassing but very urgent problem. A friend of mine asked me to set up their new external HD for both Time Machine and file storage, and to transfer over files from their old HD. I started to partition the new drive using Disk Utility, but the partition option was greyed out. The entire disk was formatted as exFat, so I thought to reformat it as HFS+. I began to do so with diskUtil:
diskUtil erasedisk hfs+ External /dev/disk2 (Note: this is on a Macbook Pro running El Capitan)
However, I mistyped. The new drive was not disk2, it was disk3--I had started to erase the old disk instead, which has important data in it. I realized my problem in an instant and
^C'd my way out of there, but the damage was done. Here's the sitch:
Terminal output says:
Starting erase on disk2 Unmounting disk diskutil:interrupted $ diskUtil list ... /dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk2 1: EFI EFI 209.7 MB disk2s1 2: Apple_HFS 999.8 GB disk2s2
As you can see, OSX recognizes the drive as GPT and the partition as HFS+. However, the drive will not show up in Finder.
- Windows (10) recognizes that I have an external HD plugged in, but nothing shows under "Volumes" when I view its device in Device Manager.
- Linux (Arch) recognizes the drive and the partition, just like OSX. I tried running ntfsfix, but to no avail. (It gave me a warning that said something about being unable to fix it and to try using chkdsk).
- I am not 100% certain what the state of this HD was before I half-formatted it. It was first used and formatted on a cheap Windows laptop when Vista was the newest Windows OS, so I would think that it was NTFS on an MBR scheme before I violated it. (Perhaps I'm wrong and someone knows better, but that's what I'm led to believe).
Anyways, here I am. I need to recover about 700GB of data, perhaps NTFS/MBR, on a drive that thinks it's HFS+/GPT. All of the data has got to be there, more or less at least, but I need help accessing it. If you have any insight or knowledge that could help me out, I would truly appreciate it.
(Lastly, I've downloaded and installed some data recovery software from Easeus. It's running a "scan" on the drive, and I suspect it'll fix my problem if I dish over $90 or so. This is just a last resort, though. I'd really rather not have this headache become an expensive one, and since it's picking a lot of data, I know there's gotta be a way to solve this with some elbow grease.)