Chris, I've used the 9826 and other 9000 200s quite a bit so I may be able to help. At 02:28 PM 11/28/01 EST, you wrote: What did you copy them from? When you say that you have the binaries, what exactly do you mean? The only binaries that I've seen for the 9826 are the .BIN files that are used with BASIC. They're language extentions and device divers files that can be included in the main OS file or loaded separately. But HPL is a complete stand alone OS and it doesn't use .BIN files. Why did you edit them? Lifutil is erratic. The problem is that HP used lots of different formats for LIF files and the file descriptor byte is loaded in different places in different LIF files and Lifutil can't find many of them so it doesn't accurately interpet the file structure therefore it frequently "scrambles" files. That's a common error message. I don't know exactly what it means but I've seen it on HP systems when you try to load an OS that doesn't match the machine that you have, such as HP-UX for a 9000/380 on a 9826. BTW does anyone know what System_HG might be? One of my drives displays that as a stored operating system but none of the machines that I have can load it (and I've tried it on lots of different HPs). I get the same "unexpected use of FFFFFFC4" message or something very similar. Note that in BASIC when you create your own OS by selectively adding .BIN files to it you can then save that OS back the drive and later it will display on the list of OSs and you can boot it directly. The point is that you can give it any name you want (but the given name affects wheather or not it displays as an OS) so the name may not have any significnace. Joe