Working with Linux terminals

6.18 LPAR mode z/VM guest KVM guest

You might have to work with different types of Linux® terminals, and use special functions on these terminals.

Using the terminal applets on the HMC
You should be aware of some aspects of the line-mode and the full-screen mode terminal when using the corresponding applets on the HMC.
Accessing terminal devices over z/VM IUCV
Use z/VM® IUCV to access hypervisor console (HVC) terminal devices, which are provided by the z/VM® IUCV HVC device driver.
Switching the views of the 3270 terminal device driver
The 3270 terminal device driver provides a terminal with three different views for Linux on z/VM®.
Setting a CCW terminal device online or offline
The 3270 terminal device driver uses CCW devices and provides them as CCW terminal devices.
Entering control and special characters on line-mode terminals
Line-mode terminals do not have a control (Ctrl) key. Without a control key, you cannot enter control characters directly.
Using the magic sysrequest feature
Whether magic sysrequest functions are available and how to call them depends on your terminal.
Using a z/VM emulation of the HMC Operating System Messages applet
You can use the Operating System Messages applet emulation; for example, if the 3215 terminal is not operational.
Using a 3270 terminal in 3215 mode
The z/VM® control program (CP) defines five characters as line-editing symbols. Use the CP QUERY TERMINAL command to see the current settings.
Setting the 3215 line-mode terminal mode for handling a full console buffer
A full console buffer might result from processes that issue console output faster than the 3215 line-mode terminal device driver can process it. Possible responses to this condition are slowing operations or dropping console output.

Parent topic: Console device drivers