sudo gdisk /dev/sda
p
    print partition table
i <num 1..6>
    info about partition
v
    verify
    If no problems are found, this command displays a summary of unallocated disk space. 
n
    create a new partition (with defaults)
???
    change name
w
    write data (to save changes)

vb-work:

Disk /dev/sda: 409600000 sectors, 195.3 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): DDA9CCC2-7979-4933-8927-24D087D43B33
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 409599966
Partitions will be aligned on 2-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048            5953   1.9 MiB     EF02  
   2            5954          255953   122.1 MiB   EF00  
   3          255954       128255953   61.0 GiB    0700  
   4       128255954       144255953   7.6 GiB     0700  
   5       144255954       272255953   61.0 GiB    0700  
   6       272255954       409599966   65.5 GiB    0700  

later - format
    mkfs.ext4 -L lbdata /dev/sda5