Ubuntu missed connection to WD Elements

I’ve tryed looking after ext. HD by Ubuntu Terminal:
erik @ erik-SATELLITE-C70D-B: ~ $ sudo fdisk -l

WARNING: GPT (GUID Partition Table) detected on ‘/ dev / sda’! The tool fdisk does not support GPT. Use GNU Parted.

Disk / dev / sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors / track, 121601 cylinders, a total of 1,953,525,168 sectors
Units of sectors = 1 * 512 = 512 bytes
Sector size (logical / physical): 512 bytes / 512 bytes
I / O size (minimum / maximum): 512 byte / 512 byte
Disk Identification: 0x00000000

Device Boot Start End Blocks Id System

/ Dev / sda1 1 1953525167 976762583+ ee GPT

Disk / dev / sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors / track, 121601 cylinders, a total of 1,953,525,168 sectors
Units of sectors = 1 * 512 = 512 bytes
Sector size (logical / physical): 512 bytes / 512 bytes
I / O size (minimum / maximum): 512 byte / 512 byte
Disk Identification: 0xe8900690

Device Boot Start End Blocks Id System

erik @ erik-SATELLITE-C70D-B: ~ $

It looks to me, as the partition name is been changed.

What can I do ?

It depends.

How is the renamed partition affecting your hard drive?