apt-get update #280
Description
It is actually a bit silly how many apt-get update we have in the compiled installation docs, e.g. in https://docs.openmicroscopy.org/omero/5.6.3/sysadmins/unix/server-ubuntu2004-ice36.html . I guess its the same with yum, resp dnf. It should be run once in the first script of the doc and removed in all subsequent scripts.