Hit:1 http://gb.archive.ubuntu.com/ubuntu xenial InRelease
Get:2 http://gb.archive.ubuntu.com/ubuntu xenial-updates InRelease [95.7 kB]                         
Hit:3 http://gb.archive.ubuntu.com/ubuntu xenial-backports InRelease                                            
Hit:4 http://security.ubuntu.com/ubuntu xenial-security InRelease       
Fetched 95.7 kB in 0s (242 kB/s)                   
Reading package lists... Done
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.