Hello everyone,
I'm new to this, but hopeful testdisk can save my files. I have a 3TB WD HD from a NAS (D-Link 323 running Alt-F) that I had formatted as ext4 (complete disk). The NAS stopped working a few days ago and using the drive in a USB enclosure connected to my ubuntu desktop PC, it only sees an empty drive with no partitions.
Can I use testdisk to rebuild the partition? I'm pasting the testdisk.log from a quick analyse, and will try a deep analyse next. I don't think it's reporting a correct FAT32 partition (but this might be an old one). Either way, it's not the one I'm looking for.
As I say, this is all completely new to me so any help would be greatly appreciated! Many thanks in advance!
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Sat May 27 07:48:28 2017
Command line: TestDisk
TestDisk 7.1-WIP, Data Recovery Utility, May 2017
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Linux, kernel 4.8.0-36-generic (#36~16.04.1-Ubuntu SMP Sun Feb 5 09:39:57 UTC 2017) x86_64
Compiler: GCC 4.4
ext2fs lib: 1.42.8, ntfs lib: libntfs-3g, reiserfs lib: 0.3.1-rc8, ewf lib: 20120504, curses lib: ncurses 5.7
/dev/sda: LBA, HPA, LBA48, DCO support
/dev/sda: size 625142448 sectors
/dev/sda: user_max 625142448 sectors
/dev/sda: native_max 625142448 sectors
/dev/sda: dco 625142448 sectors
Warning: can't get size for Disk /dev/mapper/control - 0 B - 0 sectors, sector size=512
Warning: can't get size for Disk /dev/loop1 - 0 B - 0 sectors, sector size=512
Warning: can't get size for Disk /dev/loop2 - 0 B - 0 sectors, sector size=512
Warning: can't get size for Disk /dev/loop3 - 0 B - 0 sectors, sector size=512
Warning: can't get size for Disk /dev/loop4 - 0 B - 0 sectors, sector size=512
Warning: can't get size for Disk /dev/loop5 - 0 B - 0 sectors, sector size=512
Warning: can't get size for Disk /dev/loop6 - 0 B - 0 sectors, sector size=512
Warning: can't get size for Disk /dev/loop7 - 0 B - 0 sectors, sector size=512
Hard disk list
Disk /dev/sda - 320 GB / 298 GiB - CHS 38913 255 63, sector size=512 - ST9320325ASG, S/N:5VD74QAH, FW:0008APM2
Disk /dev/sdb - 7803 MB / 7441 MiB - CHS 1019 241 62, sector size=512 - Kingston DataTraveler SE9, FW:PMAP
Disk /dev/sdc - 3000 GB / 2794 GiB - CHS 45600 255 63, sector size=4096 - Mass Storage Device
Disk /dev/loop0 - 1497 MB / 1428 MiB - 2925336 sectors (RO), sector size=512
Partition table type (auto): Intel
Disk /dev/sdc - 3000 GB / 2794 GiB - Mass Storage Device
Partition table type: Intel
Analyse Disk /dev/sdc - 3000 GB / 2794 GiB - CHS 45600 255 63
Geometry from i386 MBR: head=256 sector=63
check_part_i386 1 type EE: no test
Current partition structure:
1 P EFI GPT 0 0 2 267349 89 4 4294967295
Warning: Bad ending head (CHS and LBA don't match)
No partition is bootable
search_part()
Disk /dev/sdc - 3000 GB / 2794 GiB - CHS 45600 255 63
check_FAT: number of bytes per sector mismatches 512 (FAT) != 4096 (HD)
check_FAT: number of bytes per sector mismatches 512 (FAT) != 4096 (HD)
FAT32 at 3/51/49
FAT1 : 32-89428
FAT2 : 89429-178825
start_rootdir : 178826 root cluster : 2
Data : 178826-732515065
sectors : 732515072
cluster_size : 8
no_of_cluster : 91542030 (2 - 91542031)
fat_length 89397 calculated 89397
FAT differs, FAT sectors=0-16/89397
sect/track 32 (FAT) != 63 (HD)
FAT32 at 3/51/49
FAT: cluster=2(0x2), pos=230282
FAT32 LBA 3 51 49 45600 40 8 732515072 [WDTHREE]
FAT32, blocksize=32768, 3000 GB / 2794 GiB
Results
* FAT32 LBA 3 51 49 45600 40 8 732515072 [WDTHREE]
FAT32, blocksize=32768, 3000 GB / 2794 GiB
Hint for advanced users: dmsetup may be used if you prefer to avoid rewriting the partition table for the moment:
echo "0 5860120576 linear /dev/sdc 411648" | dmsetup create test0
interface_write()
1 * FAT32 LBA 3 51 49 45600 40 8 732515072 [WDTHREE]
Recover partition from failed NAS drive
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- 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
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Re: Recover partition from failed NAS drive
When testdisk lists the partition, press 'p'. Can you see your files ?
After selecting the disk, try EGI GPT instead of PC Intel. It may give better results.
After selecting the disk, try EGI GPT instead of PC Intel. It may give better results.