after reading askubuntu as a guest for some time I decided to be an active part of the community posting here my first question.

I bought an HDD of 2TB some months ago. It worked ok, but when I was switching to exchange files between Windows 10 and Ubuntu 20.04 it was not working perfectly. Anyway I ignore that as I kind of made it work.

Today I tried to backup my Windows files in the HDD as I barely use that partition and it is using a lot of space. When I plug my HDD, Windows suggest the repair disk because there was some error in the HDD. I clicked yes and after 15 minutes of running the repair disk tool, It suggested me to format the disk as it was damaged. I did not format it and reboot my PC with Ubuntu (I am running dual OS Win10 original and Ubuntu 20.04).

After that my HDD is not auto playing anymore when I plug it, Windows does not recognize it and I have the following outputs in Ubuntu after trying some troubleshooting

~$ sudo fdisk -l

Output only for disk sdb

*Disk /dev/sdb: 1,92 TiB, 2086666240000 bytes, 4075520000 sectors
Disk model: UDisk
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes*

~$ lsblk

*sda 8:0 0 238,5G 0 disk
├─sda1 8:1 0 260M 0 part /boot/efi
├─sda2 8:2 0 16M 0 part
├─sda3 8:3 0 178,8G 0 part
├─sda4 8:4 0 800M 0 part
├─sda5 8:5 0 1,9G 0 part
├─sda6 8:6 0 47,5G 0 part /
└─sda7 8:7 0 3,8G 0 part
sdb 8:16 0 1,9T 0 disk* 

~$ sudo parted -l

*

Model: ATA HFS256G39TND-N21 (scsi)
Disk /dev/sda: 256GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags 1 1049kB 274MB 273MB fat32 EFI system partition boot, esp 2 274MB 290MB 16,8MB Microsoft reserved partition msftres 3 290MB 192GB 192GB ntfs Basic data partition msftdata 5 192GB 194GB 2048MB ext4 6 194GB 245GB 51,0GB ext4 7 245GB 249GB 4048MB linux-swap(v1) swap 4 255GB 256GB 839MB ntfs Basic data partition hidden, diag
Error: /dev/sdb: unrecognised disk label
Model: General UDisk (scsi)
Disk /dev/sdb: 2087GB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:

~$ sudo mount /dev/sdb /mnt

mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sdb, missing codepage or helper program, or other error.

I try opening gparted: ~$ sudo gparted /dev/sdb and the disk is unallocated and unrecognised disk label.

At some point I visualize that the type of disk is dos, but I dont see that output anymore

I have some data that I want to save in the disk but I am also open to format the disk if it is impossible to recover the data.

Any help is welcome.

1

1 Answer

1- WARNING! THIS WILL ERASE YOUR DISK >>> (sdb, 2TB)

fdisk /dev/sdb

first, you need to delete. press d. then, press n, select primary (press p), select space number (select 1), enter, +1.9T enter. press w

2-

mkfs --type ext4 /dev/sdb1

if you get any error at this stage, you need to control file system

file -s /dev/sdb1

if there is a filesystem for sdb1, you have to delete it. after deleting it, run the mkfs command

wipefs -a /dev/sdb1

3-

mkdir /media/2TB1

4-a (temp way, you will have to do this after your new logins)

mount /dev/sdb1 /media/2TB1

4-b (perm way. do just once)

sudo nano /etc/fstab

add this line to the file, then press ctrl+O enter and ctrl+x

/dev/sdb1 /media/2TB1 ext4 defaults 0 0

type

mount -a

now, you can use your 2TB disk in ubuntu. if your aim is not formatting your disk, please let me know. we may road another way for you.

6

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