A couple of weeks ago, I dropped my external drive while a program was writing data to it. The drive seems to spin up fine, without beeps/scratches. The drive also has EFI and Recovery partitions. One of the two data partitions also mounts. I need to recover data from the other partition; any help will be appreciated.
I'm not sure if my issue is related to this question and its solution, but I used wxHexEditor to go to the offset for the partition in question, and did not see the HFSJ string in the third block. Every time I try searching for all possible instances for HFSJ, it takes too long and eventually the program becomes unresponsive.
I'm attaching the results of various tests on the drive. The partition I want to recover from is "HDD WD...", I don't care about the rest.
diskutil list /dev/disk2
/dev/disk2 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *2.0 TB disk2
1: EFI EFI 209.7 MB disk2s1
2: Apple_HFS BackupPT 1000.0 GB disk2s2
3: Apple_HFS HDD WD 999.2 GB disk2s3
4: Apple_Boot Recovery HD 650.0 MB disk2s4
diskutil info /dev/disk2
Device Identifier: disk2
Device Node: /dev/disk2
Whole: Yes
Part of Whole: disk2
Device / Media Name: Mobile
Volume Name: Not applicable (no file system)
Mounted: Not applicable (no file system)
File System: None
Content (IOContent): GUID_partition_scheme
OS Can Be Installed: No
Media Type: Generic
Protocol: USB
SMART Status: Not Supported
Disk Size: 2.0 TB (2000365289472 Bytes) (exactly 3906963456 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: Not applicable (no file system)
Device Location: External
Removable Media: Fixed
Virtual: No
fdisk /dev/disk2
Disk: /dev/disk2 geometry: 243197/255/63 [3906963456 sectors]
Signature: 0x0
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
gpt recover /dev/disk2
gpt recover: unable to open device '/dev/disk2': Resource busy
gpt -r -vv show /dev/disk2
gpt show: /dev/disk2: mediasize=2000365289472; sectorsize=512; blocks=3906963456
gpt show: /dev/disk2: PMBR at sector 0
gpt show: /dev/disk2: Pri GPT at sector 1
gpt show: /dev/disk2: Sec GPT at sector 3906963455
start size index contents
0 1 PMBR
1 1 Pri GPT header
2 32 Pri GPT table
34 6
40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
409640 1953125000 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
1953534640 262144
1953796784 1951634952 3 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
3905431736 262144
3905693880 1269536 4 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
3906963416 7
3906963423 32 Sec GPT table
3906963455 1 Sec GPT header
