Sure, just assign BIN to the disk with the completem set of distribution files, assign KIT to the tape drive (MU0), and do a @MUB. The resulting tape will be bootable into MDUP.MU (a simple utility that lets you initialize a disk and copy the tape files to it, and then boots the disk.) The MDUP instructions are in the RT-11 Installation manual - ask if you don't have the book and need help. TK50 tapes are also bootable into MDUP.AI, the "auto-install" version. An auto-install from TK50 takes hours, but it does work if your hardware meets the AI requirements. Note that the MUB.COM build file will expect every file that comes on an official RT-11 distribution to be present on BIN:. You better have every file, and ideally they'd be those from a "virgin" system. Things like driver SET commands may make your particular install be "non-virgin". -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927