Hi there - 
I've an external (via USB) Hitachi 3TB 7K3000 that had been humming along on my iMac (currently running mountain lion) when all went south (I suppose most people don't come here to talk about how great their drives are working!)
The testdisk log results are below.  I'll note that there were a couple of errors on the screen that didn't make it into the log; they followed a line that did (the check_FAT one):
     check_FAT: Unusual media descriptor (0xf0!=0xf8)
     Warning: number of heads/cylinder mismatches 16 (FAT) != 1 (HD)
     Warning: number of sectors per track mismatches 32 (FAT) != 1 (HD)
Basically the disk is being seen by various programs (including testdisk) as 746GB, while it's actually a 3TB drive.  The partitions seem to be ok inside the disk, but too large for what the system sees as the disk.
Hitachi claims the disk looks like this:
Label capacity                              3TB
Bytes per Sector                            512
Logical Layout
   Number of Heads                                    16
   Number of Sectors/ Track                       63
   Number of Cylinders1                        16,383
   Number of Sectors                  5,860,533,168
   Total Logical Data Bytes   3,000,592,982,016
Any hints, RTFMs, or whatever would be greatly appreciated.  I have searched around a fair bit but haven't seen the answer to my particular predicament, but I'd love to be shown the way.
(I did hit stop after awhile, the 00% progress meter wasn't moving at all, but I can rerun, do other tests, etc., etc.)
Mon Sep  3 13:39:20 2012
Command line: TestDisk
TestDisk 6.14-WIP, Data Recovery Utility, September 2012
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Darwin, kernel 12.1.0 (Darwin Kernel Version 12.1.0: Tue Aug 14 13:29:55 PDT 2012; root:xnu-2050.9
Compiler: GCC 4.2
Compilation date: 2012-09-01T19:01:09
ext2fs lib: none, ntfs lib: none, reiserfs lib: none, ewf lib: none
Hard disk list
Disk /dev/disk0 - 251 GB / 233 GiB - 490234752 sectors (RO), sector size=512
Disk /dev/disk1 - 801 GB / 746 GiB - 1565565872 sectors, sector size=512
Disk /dev/disk2 - 3932 MB / 3750 MiB - 7680000 sectors (RO), sector size=512
Disk /dev/disk3 - 536 MB / 512 MiB - 1048650 sectors (RO), sector size=512
Disk /dev/rdisk0 - 251 GB / 233 GiB - 490234752 sectors (RO), sector size=512
Disk /dev/rdisk1 - 801 GB / 746 GiB - 1565565872 sectors, sector size=512
Disk /dev/rdisk2 - 3932 MB / 3750 MiB - 7680000 sectors (RO), sector size=512
Disk /dev/rdisk3 - 536 MB / 512 MiB - 1048650 sectors (RO), sector size=512
Partition table type (auto): EFI GPT
Disk /dev/disk1 - 801 GB / 746 GiB
Partition table type: EFI GPT
Analyse Disk /dev/disk1 - 801 GB / 746 GiB - 1565565872 sectors
hdr_size=92
hdr_lba_self=1
hdr_lba_alt=5860533167 (expected 1565565871)
hdr_lba_start=34
hdr_lba_end=5860533134
hdr_lba_table=2
hdr_entries=128
hdr_entsz=128
Current partition structure:
 1 P EFI System                    40     409639     409600 [EFI System Partition]
 2 P Mac HFS                   409640 5860270983 5859861344 [mittens]
search_part()
Disk /dev/disk1 - 801 GB / 746 GiB - 1565565872 sectors
check_FAT: Unusual media descriptor (0xf0!=0xf8)
FAT32 at 40/0/1
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]
     FAT32, blocksize=512, 209 MB / 200 MiB
HFS+ magic value at 409640/0/1
part_size 5859861344
     Mac HFS                   409640 5860270983 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=409640, size=5859861344, end=5860270983, disk end=1565565872)
HFS+ magic value at 588584/0/1
part_size 5859861344
     Mac HFS                   588584 5860449927 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=588584, size=5859861344, end=5860449927, disk end=1565565872)
HFS+ magic value at 590224/0/1
part_size 5859861344
     Mac HFS                   590224 5860451567 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=590224, size=5859861344, end=5860451567, disk end=1565565872)
HFS+ magic value at 592264/0/1
part_size 5859861344
     Mac HFS                   592264 5860453607 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=592264, size=5859861344, end=5860453607, disk end=1565565872)
HFS+ magic value at 593896/0/1
part_size 5859861344
     Mac HFS                   593896 5860455239 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=593896, size=5859861344, end=5860455239, disk end=1565565872)
HFS+ magic value at 595640/0/1
part_size 5859861344
     Mac HFS                   595640 5860456983 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=595640, size=5859861344, end=5860456983, disk end=1565565872)
HFS+ magic value at 598040/0/1
part_size 5859861344
     Mac HFS                   598040 5860459383 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=598040, size=5859861344, end=5860459383, disk end=1565565872)
HFS+ magic value at 599248/0/1
part_size 5859861344
     Mac HFS                   599248 5860460591 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=599248, size=5859861344, end=5860460591, disk end=1565565872)
HFS+ magic value at 601184/0/1
part_size 5859861344
     Mac HFS                   601184 5860462527 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=601184, size=5859861344, end=5860462527, disk end=1565565872)
HFS+ magic value at 602904/0/1
part_size 5859861344
     Mac HFS                   602904 5860464247 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=602904, size=5859861344, end=5860464247, disk end=1565565872)
HFS+ magic value at 604736/0/1
part_size 5859861344
     Mac HFS                   604736 5860466079 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=604736, size=5859861344, end=5860466079, disk end=1565565872)
HFS+ magic value at 606504/0/1
part_size 5859861344
     Mac HFS                   606504 5860467847 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=606504, size=5859861344, end=5860467847, disk end=1565565872)
HFS+ magic value at 608400/0/1
part_size 5859861344
     Mac HFS                   608400 5860469743 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=608400, size=5859861344, end=5860469743, disk end=1565565872)
HFS+ magic value at 609016/0/1
part_size 5859861344
     Mac HFS                   609016 5860470359 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=609016, size=5859861344, end=5860470359, disk end=1565565872)
HFS+ magic value at 610768/0/1
part_size 5859861344
     Mac HFS                   610768 5860472111 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=610768, size=5859861344, end=5860472111, disk end=1565565872)
HFS+ magic value at 612824/0/1
part_size 5859861344
     Mac HFS                   612824 5860474167 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=612824, size=5859861344, end=5860474167, disk end=1565565872)
HFS+ magic value at 614432/0/1
part_size 5859861344
     Mac HFS                   614432 5860475775 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=614432, size=5859861344, end=5860475775, disk end=1565565872)
HFS+ magic value at 616216/0/1
part_size 5859861344
     Mac HFS                   616216 5860477559 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=616216, size=5859861344, end=5860477559, disk end=1565565872)
HFS+ magic value at 618032/0/1
part_size 5859861344
     Mac HFS                   618032 5860479375 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=618032, size=5859861344, end=5860479375, disk end=1565565872)
HFS+ magic value at 621432/0/1
part_size 5859861344
     Mac HFS                   621432 5860482775 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=621432, size=5859861344, end=5860482775, disk end=1565565872)
HFS+ magic value at 621464/0/1
part_size 5859861344
     Mac HFS                   621464 5860482807 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=621464, size=5859861344, end=5860482807, disk end=1565565872)
HFS+ magic value at 623344/0/1
part_size 5859861344
     Mac HFS                   623344 5860484687 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=623344, size=5859861344, end=5860484687, disk end=1565565872)
HFS+ magic value at 625328/0/1
part_size 5859861344
     Mac HFS                   625328 5860486671 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=625328, size=5859861344, end=5860486671, disk end=1565565872)
HFS+ magic value at 627632/0/1
part_size 5859861344
     Mac HFS                   627632 5860488975 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=627632, size=5859861344, end=5860488975, disk end=1565565872)
HFS+ magic value at 629496/0/1
part_size 5859861344
     Mac HFS                   629496 5860490839 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=629496, size=5859861344, end=5860490839, disk end=1565565872)
HFS+ magic value at 629832/0/1
part_size 5859861344
     Mac HFS                   629832 5860491175 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=629832, size=5859861344, end=5860491175, disk end=1565565872)
HFS+ magic value at 630848/0/1
part_size 5859861344
     Mac HFS                   630848 5860492191 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=630848, size=5859861344, end=5860492191, disk end=1565565872)
HFS+ magic value at 632008/0/1
part_size 5859861344
     Mac HFS                   632008 5860493351 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=632008, size=5859861344, end=5860493351, disk end=1565565872)
HFS+ magic value at 632440/0/1
part_size 5859861344
     Mac HFS                   632440 5860493783 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=632440, size=5859861344, end=5860493783, disk end=1565565872)
HFS+ magic value at 632664/0/1
part_size 5859861344
     Mac HFS                   632664 5860494007 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=632664, size=5859861344, end=5860494007, disk end=1565565872)
HFS+ magic value at 633032/0/1
part_size 5859861344
     Mac HFS                   633032 5860494375 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=633032, size=5859861344, end=5860494375, disk end=1565565872)
HFS+ magic value at 633496/0/1
part_size 5859861344
     Mac HFS                   633496 5860494839 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=633496, size=5859861344, end=5860494839, disk end=1565565872)
HFS+ magic value at 633944/0/1
part_size 5859861344
     Mac HFS                   633944 5860495287 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=633944, size=5859861344, end=5860495287, disk end=1565565872)
HFS+ magic value at 635208/0/1
part_size 5859861344
     Mac HFS                   635208 5860496551 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=635208, size=5859861344, end=5860496551, disk end=1565565872)
HFS+ magic value at 637320/0/1
part_size 5859861344
     Mac HFS                   637320 5860498663 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=637320, size=5859861344, end=5860498663, disk end=1565565872)
HFS+ magic value at 638832/0/1
part_size 5859861344
     Mac HFS                   638832 5860500175 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=638832, size=5859861344, end=5860500175, disk end=1565565872)
HFS+ magic value at 639568/0/1
part_size 5859861344
     Mac HFS                   639568 5860500911 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=639568, size=5859861344, end=5860500911, disk end=1565565872)
HFS+ magic value at 641336/0/1
part_size 5859861344
     Mac HFS                   641336 5860502679 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=641336, size=5859861344, end=5860502679, disk end=1565565872)
HFS+ magic value at 642416/0/1
part_size 5859861344
     Mac HFS                   642416 5860503759 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=642416, size=5859861344, end=5860503759, disk end=1565565872)
HFS+ magic value at 642512/0/1
part_size 5859861344
     Mac HFS                   642512 5860503855 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=642512, size=5859861344, end=5860503855, disk end=1565565872)
HFS+ magic value at 642624/0/1
part_size 5859861344
     Mac HFS                   642624 5860503967 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=642624, size=5859861344, end=5860503967, disk end=1565565872)
HFS+ magic value at 645320/0/1
part_size 5859861344
     Mac HFS                   645320 5860506663 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=645320, size=5859861344, end=5860506663, disk end=1565565872)
HFS+ magic value at 645432/0/1
part_size 5859861344
     Mac HFS                   645432 5860506775 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=645432, size=5859861344, end=5860506775, disk end=1565565872)
HFS+ magic value at 647248/0/1
part_size 5859861344
     Mac HFS                   647248 5860508591 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=647248, size=5859861344, end=5860508591, disk end=1565565872)
HFS+ magic value at 648440/0/1
part_size 5859861344
     Mac HFS                   648440 5860509783 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=648440, size=5859861344, end=5860509783, disk end=1565565872)
HFS+ magic value at 649848/0/1
part_size 5859861344
     Mac HFS                   649848 5860511191 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=649848, size=5859861344, end=5860511191, disk end=1565565872)
HFS+ magic value at 651560/0/1
part_size 5859861344
     Mac HFS                   651560 5860512903 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=651560, size=5859861344, end=5860512903, disk end=1565565872)
HFS+ magic value at 651712/0/1
part_size 5859861344
     Mac HFS                   651712 5860513055 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=651712, size=5859861344, end=5860513055, disk end=1565565872)
HFS+ magic value at 651784/0/1
part_size 5859861344
     Mac HFS                   651784 5860513127 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=651784, size=5859861344, end=5860513127, disk end=1565565872)
HFS+ magic value at 652008/0/1
part_size 5859861344
     Mac HFS                   652008 5860513351 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=652008, size=5859861344, end=5860513351, disk end=1565565872)
HFS+ magic value at 652096/0/1
part_size 5859861344
     Mac HFS                   652096 5860513439 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=652096, size=5859861344, end=5860513439, disk end=1565565872)
HFS+ magic value at 652896/0/1
part_size 5859861344
     Mac HFS                   652896 5860514239 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=652896, size=5859861344, end=5860514239, disk end=1565565872)
HFS+ magic value at 652912/0/1
part_size 5859861344
     Mac HFS                   652912 5860514255 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=652912, size=5859861344, end=5860514255, disk end=1565565872)
HFS+ magic value at 653088/0/1
part_size 5859861344
     Mac HFS                   653088 5860514431 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=653088, size=5859861344, end=5860514431, disk end=1565565872)
HFS+ magic value at 653872/0/1
part_size 5859861344
     Mac HFS                   653872 5860515215 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=653872, size=5859861344, end=5860515215, disk end=1565565872)
HFS+ magic value at 654184/0/1
part_size 5859861344
     Mac HFS                   654184 5860515527 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=654184, size=5859861344, end=5860515527, disk end=1565565872)
HFS+ magic value at 654264/0/1
part_size 5859861344
     Mac HFS                   654264 5860515607 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=654264, size=5859861344, end=5860515607, disk end=1565565872)
HFS+ magic value at 654360/0/1
part_size 5859861344
     Mac HFS                   654360 5860515703 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=654360, size=5859861344, end=5860515703, disk end=1565565872)
HFS+ magic value at 654568/0/1
part_size 5859861344
     Mac HFS                   654568 5860515911 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=654568, size=5859861344, end=5860515911, disk end=1565565872)
HFS+ magic value at 654720/0/1
part_size 5859861344
     Mac HFS                   654720 5860516063 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=654720, size=5859861344, end=5860516063, disk end=1565565872)
HFS+ magic value at 654920/0/1
part_size 5859861344
     Mac HFS                   654920 5860516263 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=654920, size=5859861344, end=5860516263, disk end=1565565872)
HFS+ magic value at 655072/0/1
part_size 5859861344
     Mac HFS                   655072 5860516415 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=655072, size=5859861344, end=5860516415, disk end=1565565872)
HFS+ magic value at 655200/0/1
part_size 5859861344
     Mac HFS                   655200 5860516543 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=655200, size=5859861344, end=5860516543, disk end=1565565872)
HFS+ magic value at 655336/0/1
part_size 5859861344
     Mac HFS                   655336 5860516679 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=655336, size=5859861344, end=5860516679, disk end=1565565872)
Search for partition aborted
Disk /dev/disk1 - 801 GB / 746 GiB - 1565565872 sectors
Check the harddisk size: HD jumpers settings, BIOS detection...
The harddisk (801 GB / 746 GiB) seems too small! (< 3000 GB / 2794 GiB)
The following partitions can't be recovered:
     Mac HFS                   409640 5860270983 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   588584 5860449927 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   590224 5860451567 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   592264 5860453607 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   593896 5860455239 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   595640 5860456983 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   598040 5860459383 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   599248 5860460591 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   601184 5860462527 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   602904 5860464247 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   604736 5860466079 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   606504 5860467847 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   608400 5860469743 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   609016 5860470359 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   610768 5860472111 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   612824 5860474167 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   614432 5860475775 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   616216 5860477559 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   618032 5860479375 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   621432 5860482775 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   621464 5860482807 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   623344 5860484687 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   625328 5860486671 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   627632 5860488975 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   629496 5860490839 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   629832 5860491175 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   630848 5860492191 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   632008 5860493351 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   632440 5860493783 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   632664 5860494007 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   633032 5860494375 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   633496 5860494839 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   633944 5860495287 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   635208 5860496551 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   637320 5860498663 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   638832 5860500175 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   639568 5860500911 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   641336 5860502679 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   642416 5860503759 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   642512 5860503855 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   642624 5860503967 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   645320 5860506663 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   645432 5860506775 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   647248 5860508591 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   648440 5860509783 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   649848 5860511191 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   651560 5860512903 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   651712 5860513055 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   651784 5860513127 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   652008 5860513351 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   652096 5860513439 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   652896 5860514239 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   652912 5860514255 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   653088 5860514431 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   653872 5860515215 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   654184 5860515527 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   654264 5860515607 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   654360 5860515703 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   654568 5860515911 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   654720 5860516063 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   654920 5860516263 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   655072 5860516415 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   655200 5860516543 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
     Mac HFS                   655336 5860516679 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
Results
   P EFI System                    40     409639     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB
interface_write()
 1 P EFI System                    40     409639     409600 [EFI]
search_part()
Disk /dev/disk1 - 801 GB / 746 GiB - 1565565872 sectors
check_FAT: Unusual media descriptor (0xf0!=0xf8)
FAT32 at 40/0/1
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]
     FAT32, blocksize=512, 209 MB / 200 MiB
check_FAT: Unusual media descriptor (0xf0!=0xf8)
FAT32 at 46/0/1
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)
set_FAT_info: name from BS used
FAT32 at 46/0/1
     EFI System                    46     409645     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB
HFS+ magic value at 409640/0/1
part_size 5859861344
     Mac HFS                   409640 5860270983 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
This partition ends after the disk limits. (start=409640, size=5859861344, end=5860270983, disk end=1565565872)
HFS+ magic value at 409642/0/1
Search for partition aborted
Disk /dev/disk1 - 801 GB / 746 GiB - 1565565872 sectors
Check the harddisk size: HD jumpers settings, BIOS detection...
The harddisk (801 GB / 746 GiB) seems too small! (< 3000 GB / 2794 GiB)
The following partition can't be recovered:
     Mac HFS                   409640 5860270983 5859861344
     HFS+ blocksize=4096, 3000 GB / 2794 GiB
Results
     EFI System                    40     409639     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB
     EFI System                    46     409645     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB
interface_write()
 
No partition found or selected for recovery
simulate write!
TestDisk exited normally.
			
			
									
						
										
						Geometry woes
					Forum rules
When asking for technical support:
- Search for posts on the same topic before posting a new question.
- Give clear, specific information in the title of your post.
- Include as many details as you can, MOST POSTS WILL GET ONLY ONE OR TWO ANSWERS.
- Post a follow up with a "Thank you" or "This worked!"
- When you learn something, use that knowledge to HELP ANOTHER USER LATER.
Before posting, please read https://www.cgsecurity.org/testdisk.pdf
	When asking for technical support:
- Search for posts on the same topic before posting a new question.
- Give clear, specific information in the title of your post.
- Include as many details as you can, MOST POSTS WILL GET ONLY ONE OR TWO ANSWERS.
- Post a follow up with a "Thank you" or "This worked!"
- When you learn something, use that knowledge to HELP ANOTHER USER LATER.
Before posting, please read https://www.cgsecurity.org/testdisk.pdf
Re: Geometry woes
The first thing to do, might be to get your disk capacity back.
Currently your partition ends after disk limit.
A possibility might be hdat2.
Like in these examples;
http://forum.cgsecurity.org/phpBB3/raw- ... ilit=hdat2
http://forum.cgsecurity.org/phpBB3/post ... hdat2#p126
Setting back disk limit accesses the firmware of your disk.
In this case its recommended to connect your disk internally.
Fiona
			
			
									
						
										
						Currently your partition ends after disk limit.
A possibility might be hdat2.
Like in these examples;
http://forum.cgsecurity.org/phpBB3/raw- ... ilit=hdat2
http://forum.cgsecurity.org/phpBB3/post ... hdat2#p126
Setting back disk limit accesses the firmware of your disk.
In this case its recommended to connect your disk internally.
Fiona
