update esxi

download patch from VMware patch site

upload patch zip archiv to datastore accessable from esxi, e.g. locale_datastore

get list of profiles in update

esxcli software sources profile list -d /vmfs/volumes/<datastore>/<pfad>/<zip file>

set maintenance mode

vim-cmd hostsvc/maintenance_mode_enter

install update

esxcli software profile update -d /vmfs/volumes/<datastore>/<pfad>/<zip file> -p <profile from above>

reboot esxi

disable maintenance mode

vim-cmd hostsvc/maintenance_mode_exit