LeMarr, ... The problem is not that you're on a 3270 session but that on that 3270 session you're getting line-mode interaction with the guest operating system.
Linux/390 now has (thanks to the kind folks at UTSGlobal) a 3270 driver. Sadly, none of the full-screen text-mode applications have any way of using that interface. Many (most?) could be easily re-tooled to use a block mode subset of the ANSI X3.64 protocol (roughly what is used for VT100 and 'xterm' and many others) if only there were a protocol converter. We need the opposite of a 7171, something like a TNVT100 for local. So ... this much I'm sure you already know. It's as if you were on a DECWriter terminal. Use 'ed' or other line-mode methods. Another solution would be to attach this guests root disk to another Linux guest (one NOT having network trouble), mount it there, do your work, unmount it detach it then re-connect it to the troubled guest. -- RMT
