NTFS readable with partition type 'none', windows wants to format the drive

How to use TestDisk to recover lost partition
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axerqz
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Joined: 24 Jul 2016, 20:22

NTFS readable with partition type 'none', windows wants to format the drive

#1 Post by axerqz » 24 Jul 2016, 20:31

I recently moved a 3 TB hard drive from a usb docking station into my desktop, which resulted in the drive becoming corrupt (in Windows, at least). Linux happily mounts my drive as a NTFS filystem (on /dev/sdX, not /dev/sdX1). Testdisk detects partition type none, and finds the NTFS filesystem along with all files. Selecting Intel/PC, however, shows the following output:

Code: Select all

Disk /dev/sdb - 3000 GB / 2794 GiB - CHS 364801 255 63
Current partition structure:
     Partition                  Start        End    Size in sectors

Invalid NTFS or EXFAT boot
 1 * HPFS - NTFS          120527  49 53 234813 237 34 1836016416
 1 * HPFS - NTFS          120527  49 53 234813 237 34 1836016416

Bad relative sector.
 2 * Sys=73               119380 132 62 153270  41 37  544437093

Bad relative sector.
 3 * Sys=2B               113201  29 24 147074 114 59  544175136

Bad relative sector.
 4 * SpeedStor            177063 118 26 177066 225 63      54974

Bad relative sector.
Only one partition must be bootable
Space conflict between the following two partitions
 3 * Sys=2B               113201  29 24 147074 114 59  544175136
 2 * Sys=73               119380 132 62 153270  41 37  544437093
Space conflict between the following two partitions
 2 * Sys=73               119380 132 62 153270  41 37  544437093
 1 * HPFS - NTFS          120527  49 53 234813 237 34 1836016416
Space conflict between the following two partitions
 1 * HPFS - NTFS          120527  49 53 234813 237 34 1836016416
 4 * SpeedStor            177063 118 26 177066 225 63      54974
Is there any way to restore the partition table (I'm guessing this is the issue?) without having to copy all files to another drive (which I don't have, otherwise I would have done that)?

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cgrenier
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Re: NTFS readable with partition type 'none', windows wants to format the drive

#2 Post by cgrenier » 25 Jul 2016, 06:35

The safest solution may be to
- copy all the files
- create a partition
- reformat it as NTFS
- copy all the files back

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