Testdisk Quick Search generated following report:
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TestDisk 7.1-WIP, Data Recovery Utility, December 2018
Christophe GRENIER <grenier@cgsecurity.org>
https://www.cgsecurity.org
OS: Darwin, kernel 16.7.0 (Darwin Kernel Version 16.7.0: Tue Jan 30 11:27:06 PST 2018; root:xnu-3789.73.11~1/RELEASE_X86_64) x86_64
Compiler: GCC 4.0
Compilation date: 2019-01-11T07:56:50
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/disk1 - 500 GB / 465 GiB - 122086923 sectors, sector size=4096
Disk /dev/disk2 - 500 GB / 465 GiB - 976773168 sectors (RO), sector size=512
Disk /dev/rdisk0 - 500 GB / 465 GiB - 977105060 sectors (RO), sector size=512
Disk /dev/rdisk1 - 500 GB / 465 GiB - 122086923 sectors, sector size=4096
Disk /dev/rdisk2 - 500 GB / 465 GiB - 976773168 sectors (RO), sector size=512
Partition table type (auto): EFI GPT
Media is opened in read-only.
Disk /dev/disk0 - 500 GB / 465 GiB (RO)
Partition table type: EFI GPT
Analyse Disk /dev/disk0 - 500 GB / 465 GiB - 977105060 sectors (RO)
hdr_size=92
hdr_lba_self=1
hdr_lba_alt=977105059 (expected 977105059)
hdr_lba_start=34
hdr_lba_end=977105026
hdr_lba_table=2
hdr_entries=128
hdr_entsz=128
7c3457ef 0000 11aa aa 11 00 30 65 43 ec ac
Current partition structure:
1 P EFI System 40 409639 409600 [EFI System Partition]
2 P Unknown 409640 977105023 976695384 [Macintosh HD]
search_part()
Disk /dev/disk0 - 500 GB / 465 GiB - 977105060 sectors (RO)
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
FAT differs, FAT sectors=608-624/3151
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
check_FAT: Bad number of sectors per cluster
0 0000 0000 00 00 00 00 00 00 00 00
Unknown 280550117 114451516807908 114451236257792
WBFS, 58599 TB / 53295 TiB
0 0000 0000 00 00 00 00 00 00 00 00
Partition not added.
LVM magic value at 293835926/0/1
Results
P EFI System 40 409639 409600 [EFI System Partition] [EFI]
FAT32, blocksize=512, 209 MB / 200 MiB
dir_partition inode=0
P EFI System 40 409639 409600 [EFI System Partition] [EFI]
FAT32, blocksize=512, 209 MB / 200 MiB
FAT: cluster=2(0x2), pos=6374
Directory /
3 drwxr-xr-x 0 0 0 28-Dec-2017 18:45 EFI
2566 drwxr-xr-x 0 0 0 12-Feb-2013 13:14 .Trashes
78104 -rwxr-xr-x 0 0 170349 28-Dec-2017 18:45 BOOTLOG
interface_write()
1 P EFI System 40 409639 409600 [EFI System Partition] [EFI]
interface_write()
1 P EFI System 40 409639 409600 [EFI System Partition] [EFI]
simulate write!
Interface Advanced
hdr_size=92
hdr_lba_self=1
hdr_lba_alt=977105059 (expected 977105059)
hdr_lba_start=34
hdr_lba_end=977105026
hdr_lba_table=2
hdr_entries=128
hdr_entsz=128
7c3457ef 0000 11aa aa 11 00 30 65 43 ec ac
1 P EFI System 40 409639 409600 [EFI System Partition]
7c3457ef 0000 11aa aa 11 00 30 65 43 ec ac
2 P Unknown 409640 977105023 976695384 [Macintosh HD]
7c3457ef 0000 11aa aa 11 00 30 65 43 ec ac
7c3457ef 0000 11aa aa 11 00 30 65 43 ec ac
7c3457ef 0000 11aa aa 11 00 30 65 43 ec ac
7c3457ef 0000 11aa aa 11 00 30 65 43 ec ac
New options :
Dump : No
Align partition: Yes
Expert mode : No
TestDisk exited normally.