Ubuntu Server 18.04 - Difference between "live" and "alternative"
ubuntuforums.org › showthreadMay 02, 2018 · The next generation Subiquity server installer, brings the comfortable live session and speedy install of Ubuntu Desktop to server users at last. N.B., If you require LVM, RAID, multipath, vlans, bonds, or the ability to re-using existing partitions, you will want to continue to use the alternate installer which can be downloaded from http://cdimage.ubuntu.com/releases/18.04/release/