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I hope you can help me, I have this two 2.5" hard drives (250 and 500GB, respectively) that I put inside Acteck USB 2.0 drive cases and formatted them under linux, creating a new GPT partition table (using gdisk) and adding only one partition of type 0700 (windows regular data) formatted as NTFS using mkntfs with default parameters (i.e. I did not set any cluster or sector size) just mkntfs /dev/sdb1 on each drive.

Both of them work flawlessly under Linux, I can mount them and browse the files on them; but only one of them is visible under Windows (the 500GB one), the other one simply shows up as unallocated data on the drive manager and it asks me to create a new partition table on it. I have connected them several times on several different ports on the same windows machine with the same results; I have connected both of them on the same machine running a live version of Linux too and both drives work perfectly fine. I also connected it on the same linux box on which I formatted it and it shows on Thunar but then I started a Windows VM and connected the drive to it and it has the same effect, so I'd say that this is an issue with Windows.

This is how it's shown on every Windows machine I've connected it (including the VM): Windows disk manager partition on the 250GB drive

This is the output of gdisk /dev/sdb -l for the 250GB one:

GPT fdisk (gdisk) version 1.0.0

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.
Disk /dev/sdb: 488397168 sectors, 232.9 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 013E97B6-B8DE-4D39-A9A6-B9A8704370B6
Partition table holds up to 128 entries
First usable sector is 2048, last usable sector is 488397134
Partitions will be aligned on 2048-sector boundaries
Total free space is 0 sectors (0 bytes)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048       488397134   232.9 GiB   0700  Ariel250GB

And this is the output of gdisk /dev/sdb -l for the 500GB one:

GPT fdisk (gdisk) version 1.0.0

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.
Disk /dev/sdb: 976773168 sectors, 465.8 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 963D42B4-A1C2-449F-93BF-9197F904809A
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 976773134
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048       976773134   465.8 GiB   0700  Ariel500GB

Edit:

I've only tested it using Windows 7 since I don't have any Windows 8 machine near. I also used fdisk to create the partition table on one and gdisk for the other, but I can't remember which one I used on which.

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  • the drive is offline. Bring it online: i-msdn.sec.s-msft.com/dynimg/IC235920.png May 23, 2015 at 6:53
  • It says that the disk's structure is either damaged or illegible
    – arielnmz
    May 23, 2015 at 6:58
  • do you have any data on it? If not, format it again in Windows. May 23, 2015 at 6:59
  • Linux still does not fully support NTFS. You should use FAT32 if you want true filesystem interoperability between Linux and Windows.
    – fpmurphy
    May 23, 2015 at 12:18

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