I attached my working 3,5" 3TB HDD to my Raspberry Pi 4. I'm using an old case from a HDD called Seagate Freeagent, the actual drive is a WD Blue with 3TB. So after attaching it to the pi, I get those infos:
dmesg:
[88997.015075] usb 1-1.2: new high-speed USB device number 4 using xhci_hcd
[88997.116113] usb 1-1.2: New USB device found, idVendor=0bc2, idProduct=3008, bcdDevice= 1.32
[88997.116148] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[88997.116165] usb 1-1.2: Product: FreeAgent
[88997.116179] usb 1-1.2: Manufacturer: Seagate
[88997.116192] usb 1-1.2: SerialNumber: 2GEWEWQW
[88997.118560] usb-storage 1-1.2:1.0: USB Mass Storage device detected
[88997.119669] scsi host1: usb-storage 1-1.2:1.0
[88998.123842] scsi 1:0:0:0: Direct-Access Seagate FreeAgent 0132 PQ: 0 ANSI: 4
[88998.124704] sd 1:0:0:0: Attached scsi generic sg1 type 0
[88998.125068] sd 1:0:0:0: [sdb] 1565565872 512-byte logical blocks: (802 GB/747 GiB)
[88998.125518] sd 1:0:0:0: [sdb] Write Protect is off
[88998.125537] sd 1:0:0:0: [sdb] Mode Sense: 2d 08 00 00
[88998.125985] sd 1:0:0:0: [sdb] No Caching mode page found
[88998.126002] sd 1:0:0:0: [sdb] Assuming drive cache: write through
[88998.147844] sd 1:0:0:0: [sdb] Attached SCSI disk
In blkid I can only see my others drives.
Then sudo fdisk -l tells me there is something, but the Size seems totally wrong?
Disk /dev/sdb: 746.52 GiB, 801569726464 bytes, 1565565872 sectors
Disk model: FreeAgent
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x16a10371
Device Boot Start End Sectors Size Id Type
/dev/sdb1 1 4294967295 4294967295 2T ee GPT
Mounting doesn't work though, as there are no partitions in /dev/:
pi@pihole4:~ $ sudo mount -t ntfs -o nls=utf8,umask=0222 /dev/sdb1 /media/nashdd
ntfs-3g: Failed to access volume '/dev/sdb1': No such file or directory
Only the device is there:
pi@pihole4:~ $ ls -l /dev/sdb*
brw-rw---- 1 root disk 8, 16 Dec 8 15:36 /dev/sdb
I checked in Windows - the partition table is GPT. There is also a free space in of 129MB, which is not partitioned. What am I doing wrong?
edit: Just tried out a different device (same SATA adapter), which was freshly formatted as NTFS under Windows. And it works without a problem. It's output is a little bit different in fdisk:
Disk /dev/sdb: 298.09 GiB, 320072933376 bytes, 625142448 sectors
Disk model: FreeAgent
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xb31087ab
Device Boot Start End Sectors Size Id Type
/dev/sdb1 2048 625141759 625139712 298.1G 7 HPFS/NTFS/exFAT
So I don't have a second drive which can hold my 2TB of data for a fresh formatting, is it possible to repair the partition table without wiping my data?
