Well,, I was trying to do a dual boot installation of Windows/Ubuntu. Somewhere I somehow messed up. ( I was constantly formating, partitioning and booting my external 500GB HDD), and now it will not mount on neither Ubutnu nor Windows.
My best guess is that I messed up something while using GParted, or while creating a bootable drive. Though I can still see it in GParted, but for some reason it now shows that it has 1,82 TiB?
I tried to delete the unknown Partition, but it did not work, plus I get some strange warning
I used different commands in terminal in order to see what was going on,This is what I got.NOTE:( My laptop has single internal 128GB SSD and 1TB internal HDD.)
I found somebody on this forum with similar problem on their USB,here but it does not say how were they able to format it and return it to usable form.
EDIT: Ok,, so I tried using some terminal commands Katu proposed and it sort of worked. This You-Tube tutorial was helpful
First I wrote:
$ sudo fdisk /dev/sdb
This way I was able to enter the hard drive. Then I wrote in
Command (m for help): d
(Note: d= delete)
Command (m for help): w
(Note: w= write)
Only problem is that now it is a read-only HDD, but I bypass that by using $ sudo nautilus