Failed to mount USB drive (Samsung 4TB) - how to fix this?

[m654321]

Many thanks for your thoughts Jerry, bitsnpcs & Scott

[member=2]Jerry[/member] - it did not show up under Disks, though does now following it being "fixed".

This is what I did in LL3.4 - a slightly different approach, gleaned from the PCLOS forum...
I highlighted Samsung under Devices in the file manager (I think it was right click).
I then pressed Ctrl + Esc and this appeared to mount the drive and show it's contents on the laptop display.

Having got that far, I opened gparted and wiped the drive by formatting as a GPT, with a single ext4 partition spanning the whole disk. Should I have done this or should I have a second partition of 2 to 3 MB of unallocated space at the end of the partition?

When I look at the drive under Disks, the Assessment states "Disk is OK, one bad sector"

One bad sector? Doesn't sound good - how do I get rid of this?

I seem unable to copy/paste files to the newly formatted 4TB disk as the paste option is greyed-out - how do I get the paste option to work?

It seems I still have a bit to go yet, though appear to be almost there - your continued advice on this one is much appreciated ...