Complex sentence: Many popular distributions come in both "live" and conventional forms, whereas the conventional form is a network or removable media image intended to be used only for installation; such distributions include SUSE, Ubuntu, Linux Mint, MEPIS and Fedora.
Split into simpler sentences: Many popular distributions come in both "Live" and conventional forms (the conventional form being a network or removable media image which is intended to be used for installation only). This includes SUSE, Ubuntu, Linux Mint, MEPIS and Fedora.