On 05/16/2018 02:23 PM, Terri C. Glowaniak wrote: > Just wondering what 'console' people use to access their Linux systems when > using 'single user mode' ... 3270, IUCV, or ?
"yes" *IUCV* is best, if you have an IUCV terminal server running. You can SSH into the terminal server, hop to the ailing Linux guests via IUCV, and "everything is normal". (Well ... except that you're in single-user maint mode.) We really should make more use of IUCV in all ways, terminal server, things layered on that, and non-terminal traffic. It's awesome! *3215* (which might be what you mean by "3270") is tolerable if you're okay with a truly line-mode environment. It really confuses some Unix/Linux people who have never used serial line consoles and such. It's not difficult, just tedious. This is *#CP CONMODE 3215* and is the default we all know and love. True *3270* would be fine, but would give you the same operation as 3215, except Linux is translating 3270 interaction into line-at-a-time. (And there is no 3215 because that only applies when z/VM is doing this hack.) The upside is that you *can* run some full-screen apps. They'll display like they're on an XTERM or similar ANSI X3.64 screen. You just don't get byte-at-a-time /input/, which almost all of them kinda of expect. Careful with what mode you're in when using 'vi', for example. And don't even think about using EMACS. You'd simply need the 3270 driver and *#CP CONMODE 3270*. Works. If you're on bare metal, you can use *SYSASCII*. Never done that. (Wish z/VM would support it for remote access.) Another option is to have a *rescue system* available in a pinch, so you can sign-on to the ailing Linux guest, bring up the rescue environment, get it onto the network, and then SSH like normal. Another option is to attach the *minidisks* of the ailing guest to a *different Linux guest*. Mount it/them, 'chroot', and do what needs doin. I don't know if this helps, but it's fun ... FSVO "fun". -- R; <>< ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
