cli/boot: Read partition base name from config

also add missing test for slapos node boot
4 jobs for <span class="ref-name">fix/boot_removetimestamp_harcoded</span> in 0 seconds
Status Job ID Name Coverage
  External
passed SlapOS.Eggs.UnitTest-Jerome.Python2

00:12:50

passed SlapOS.Eggs.UnitTest-Jerome.Python3

00:16:05

failed SlapOS.Eggs.UnitTest-Jerome.Python2

failed SlapOS.Eggs.UnitTest-Jerome.Python2

00:15:11