Trouble accessing external NTFS partition
reddit / BSD

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kurijlj · 2021-05-09 20:31

Hi to all,

I am new to the BSD, and I have trouble trying to access data on an
the externally mounted hard drive with Windows 10 partition on it. I
am using an external drive bay connected via USB to my desktop. When I
switch drive on I get the following output from dmesg:

    umass0 on uhub4
    umass0: <MSC Bulk-Only Transfer> on usbus1
    umass0:  SCSI over Bulk-Only; quirks = 0x4000
    umass0:4:0: Attached to scbus4
    da0 at umass-sim0 bus 0 scbus4 target 0 lun 0
    da0: <ST500DM0 02-1BD142 > Fixed Direct Access SCSI-2 device
    da0: Serial Number 8300C9880000
    da0: 40.000MB/s transfers
    da0: 476940MB (122096646 4096 byte sectors)
    da0: quirks=0xa<NO_6_BYTE,4K>
    GEOM_PART: integrity check failed (da0, MBR)
    GEOM_PART: integrity check failed (diskid/DISK-8300C9880000, MBR)
    GEOM_PART: integrity check failed (da0, MBR)
    GEOM_PART: integrity check failed (diskid/DISK-8300C9880000, MBR)
    GEOM_PART: integrity check failed (da0, MBR)
    GEOM_PART: integrity check failed (diskid/DISK-8300C9880000, MBR)
    GEOM_PART: integrity check failed (da0, MBR)
    GEOM_PART: integrity check failed (diskid/DISK-8300C9880000, MBR)

If I try to mount disk i get the following:Bash:

    $ sudo mount -t ntfs-3g /dev/da0 /mnt
    mount: /dev/da0: Operation not supported by device

If I run *'$ gpart show'* the drive is not even listed, and if I *'$
gpart list*' on the device i get the following:Bash:

    $ gpart list da0
    gpart: Class 'PART' does not have an instance named 'da0'.

If I '$ *ls -l /dev/da0*' i get:Bash:

    gpart: Class 'PART' does not have an instance named 'da0'.

I tried *'dd if=/dev/zero of=/dev/da0 bs=512 count=1'*, also but I get
the following:Bash:

    dd: /dev/da0: Invalid argument
    1+0 records in
    0+0 records out
    0 bytes transferred in 0.000101 secs (0 bytes/sec)

Output of the *'diskinfo -v /dev/da0'* is:Bash:

    /dev/da0
        4096            # sectorsize
        500107862016    # mediasize in bytes (466G)
        122096646       # mediasize in sectors
        4096            # stripesize
        0               # stripeoffset
        7600            # Cylinders according to firmware.
        255             # Heads according to firmware.
        63              # Sectors according to firmware.
        ST500DM0 02-1BD142      # Disk descr.
        8300C9880000    # Disk ident.
        No              # TRIM/UNMAP support
        Unknown         # Rotation rate in RPM
        Not_Zoned       # Zone Mode

I guess the problem is that I am trying to mount the drive using an
external bay, but that is the only option I have because all of my
internal bays are full (SFF chassis). Any way to work around this?

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demigod987 · 2021-05-10 00:32

Is the drive encrypted with Bitlocker?

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kurijlj · 2021-05-11 09:47

I don't think so. Because I was able to read and write to drive from
my Linux workstation.

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PreviousWay · 2021-05-21 07:35

Did you solve this yet? You need specify the partition (eg. /dev/da0p1
not /dev/da0).

To get the partition index list

`#gpart show da0`

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kurijlj · 2021-06-05 13:55

Actually, I had to buy a new HD docking station