Terminal device nodes

LPAR mode z/VM guest KVM guest

Applications, for example, login programs, access terminal devices by device nodes.

For example, with the default conmode settings, udev creates the following device nodes:
Table 1. Device nodes created by udev
Device driver On LPAR On z/VM® On KVM
SCLP line-mode terminal device driver /dev/sclp_line0 n/a /dev/sclp_line0
SCLP VT220 terminal device driver /dev/ttysclp0 /dev/ttysclp0 /dev/ttysclp0
3215 line-mode terminal device driver n/a /dev/ttyS0 n/a
3270 terminal device driver /dev/3270/tty1 to
/dev/3270/tty<N>
/dev/3270/tty1 to
/dev/3270/tty<N>
/dev/3270/tty1 to /dev/3270/tty<N>
z/VM IUCV HVC device driver n/a /dev/hvc0 to /dev/hvc7 n/a
virtio-console device driver n/a n/a /dev/hvc0 to /dev/hvc<n>

On LPAR, the 3270 terminal device node is only created if a real terminal is available.