a ntfs/gpt/3TB disk unexpectedly became raw and I tried to use testdisk to recover the partition.
But the auto-detected geometry for the disk at the testdisk start-up looks suspicious
What Computer management shows:
Disk 0: C: 931.51 GB NTFS (MBR Partition)
Disk 1: D: 2794.39 GB NTFS (GPT Partition)
Disk 2: F: 931.51 GB NTFS (MBR Partition)
Disk 3: E: 2794.39 GB (GPT Partition). This is the disk that became raw
What teskdisk 7.0 shows (Windows Server 2003, so no version 7.2 is possible)
(but the same is for FreeDos/testdisk 7.2 version boot)
Disk /dev/sda - 1000 GB / 931 GiB
Disk /dev/sdb - 801 GB / 746 GiB
Disk /dev/sdc - 1000 GB / 931 GiB
Disk /dev/sdd - 801 GB / 746 GiB
Drive C: - 1000 GB / 931 GiB
Drive D: - 3000 GB / 2794 GiB
Drive F: - 1000 GB / 931 GiB
So both 3TB drives are listed incorrectly with the drives enumeration and one with the correct NTFS system is shown correctly when enumerated with the drive letters
As for my task, testdisk can't detect anything when I used it for the problem disk (/dev/sdd ) both with the default geometry and I change it forcingly to the one I found at the Drive D: item (364784 cylinders). I could suggest that nothing is possible with my disk, but for the healthy ntfs disk (Drive D) testdisk can't detect ntfs partition in the following three cases:
- /dev/sdb default geometry . Detects EFI GPT, Big "MS Data partition", but "No FAT, NTFS, ext2... marker" after Analyze
- /dev/sdb, forced 3TB (364784 cylinders). The same...
- Drive D: item . Doesn't detect EFI Gpt, if I choose one, Bad GPT Partition, invalid signature
(The motherboard is MSI G31TM-P35)