I hope this finds you well. First of all, I'd like to thank you very much for your invaluable contribution to this community.
Recently, my external hard drive failed to mount after a routine restart on a Mac. I made a full clone to another drive and am now attempting to recover the partition or files, anything ... I've already selected the <superblock> option via testdisk and written the header from the backup -- but the clone still fails to mount.
I've also tried photoRec in an attempt to recover files directly, but am coming up empty ... nothing found ...
I've attached the log from a testdisk analysis, and would appreciate any help, especially through your discerning eyes ... If there is anything that I can provide that would help in your assessment, I would gladly include ... Thanks again.
All the best,
Code: Select all
Tue Jun 20 21:25:36 2017
Command line: TestDisk
TestDisk 7.1-WIP, Data Recovery Utility, May 2017
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Darwin, kernel 16.1.0 (Darwin Kernel Version 16.1.0: Mon Oct 3 14:03:15 PDT 2016; root:xnu-3789.2
Compiler: GCC 4.0
Compilation date: 2017-06-16T14:21:47
ext2fs lib: 1.42.8, ntfs lib: libntfs-3g, reiserfs lib: 0.3.1-rc8, ewf lib: 20120504, curses lib: ncurses 5.4
Hard disk list
Disk /dev/disk0 - 500 GB / 465 GiB - 977105060 sectors (RO), sector size=512
Disk /dev/disk2 - 4000 GB / 3726 GiB - 7814037167 sectors, sector size=512
Disk /dev/disk3 - 4000 GB / 3725 GiB - 7813969920 sectors (RO), sector size=512
Disk /dev/rdisk0 - 500 GB / 465 GiB - 977105060 sectors (RO), sector size=512
Disk /dev/rdisk1 - 499 GB / 464 GiB - 974700800 sectors (RO), sector size=512
Disk /dev/rdisk2 - 4000 GB / 3726 GiB - 7814037167 sectors, sector size=512
Disk /dev/rdisk3 - 4000 GB / 3725 GiB - 7813969920 sectors (RO), sector size=512
Partition table type (auto): EFI GPT
Disk /dev/rdisk2 - 4000 GB / 3726 GiB
Partition table type: EFI GPT
Interface Advanced
hdr_size=92
hdr_lba_self=1
hdr_lba_alt=7814037166 (expected 7814037166)
hdr_lba_start=34
hdr_lba_end=7814037133
hdr_lba_table=2
hdr_entries=128
hdr_entsz=128
1 P Mac HFS 409640 7813774983 7813365344
HFS+ blocksize=8192 + Backup, 4000 GB / 3725 GiB
gpt_change_part_type
Change partition type:
1 P Mac HFS 409640 7813774983 7813365344
HFS+ blocksize=8192 + Backup, 4000 GB / 3725 GiB
Change partition type:
1 P HFS+ 409640 7813774983 7813365344
HFS+ blocksize=8192 + Backup, 4000 GB / 3725 GiB
HFS_HFSP_boot_sector
1 P Mac HFS 409640 7813774983 7813365344
HFS+ blocksize=8192 + Backup, 4000 GB / 3725 GiB
HFS+ magic value at 409640/0/1
HFS+ magic value at 409640/0/1
Volume header
HFS+ OK
Backup volume header
HFS+ OK
Sectors are identical.
Analyse Disk /dev/rdisk2 - 4000 GB / 3726 GiB - 7814037167 sectors
hdr_size=92
hdr_lba_self=1
hdr_lba_alt=7814037166 (expected 7814037166)
hdr_lba_start=34
hdr_lba_end=7814037133
hdr_lba_table=2
hdr_entries=128
hdr_entsz=128
Current partition structure:
1 P Mac HFS 409640 7813774983 7813365344
search_part()
Disk /dev/rdisk2 - 4000 GB / 3726 GiB - 7814037167 sectors
FAT32 at 40/0/1
check_FAT: Unusual media descriptor (0xf0!=0xf8)
FAT1 : 32-3182
FAT2 : 3183-6333
start_rootdir : 6334 root cluster : 2
Data : 6334-409599
sectors : 409600
cluster_size : 1
no_of_cluster : 403266 (2 - 403267)
fat_length 3151 calculated 3151
heads/cylinder 16 (FAT) != 1 (HD)
sect/track 32 (FAT) != 1 (HD)
FAT32 at 40/0/1
EFI System 40 409639 409600 [EFI System Partition] [EFI]
FAT32, blocksize=512, 209 MB / 200 MiB
HFS+ magic value at 409640/0/1
HFS+ magic value at 409640/0/1
part_size 3518398048
Mac HFS 409640 7813774983 7813365344
HFS+ blocksize=8192 + Backup, 4000 GB / 3725 GiB
Search for partition aborted
Results
P EFI System 40 409639 409600 [EFI System Partition] [EFI]
FAT32, blocksize=512, 209 MB / 200 MiB
P Mac HFS 409640 7813774983 7813365344
HFS+ blocksize=8192 + Backup, 4000 GB / 3725 GiB
interface_write()
1 P EFI System 40 409639 409600 [EFI System Partition] [EFI]
2 P Mac HFS 409640 7813774983 7813365344
simulate write!
Interface Advanced
hdr_size=92
hdr_lba_self=1
hdr_lba_alt=7814037166 (expected 7814037166)
hdr_lba_start=34
hdr_lba_end=7814037133
hdr_lba_table=2
hdr_entries=128
hdr_entsz=128
1 P Mac HFS 409640 7813774983 7813365344
HFS+ blocksize=8192 + Backup, 4000 GB / 3725 GiB
HFS_HFSP_boot_sector
1 P Mac HFS 409640 7813774983 7813365344
HFS+ blocksize=8192 + Backup, 4000 GB / 3725 GiB
HFS+ magic value at 409640/0/1
HFS+ magic value at 409640/0/1
Volume header
HFS+ OK
Backup volume header
HFS+ OK
Sectors are identical.