ZCONS(4D) Devices ZCONS(4D)

NAME

zcons - Zone console device driver

DESCRIPTION

The zcons character driver exports the console for system zones. The
driver is fundamentally similar to a pseudo-terminal device, and is
thus comprised of two sides:

+o a manager device, which applications in the global zone can open
for communication

+o a subsidiary device, which processes in the non-global zone can
write to, to communicate with global zone management applications

Applications must not depend on the location of /dev or /devices
entries exposed by zcons in the global zone. Inside a non-global zone,
the zcons subsidiary device is fronted by /dev/console and other
console-related symbolic links, which are used by applications that
expect to write to the system console.

The zcons driver is not a Committed interface, and may change at any
time.

FILES

/dev/zcons/ZONENAME/globalconsole
Global zone console manager device
for zone ZONENAME.

/dev/zcons/ZONENAME/zoneconsole Global zone console subsidiary device
for zone ZONENAME.

/dev/zconsole Non-global zone console (subsidiary
device).

INTERFACE STABILITY

Uncommitted

SEE ALSO

attributes(7), zones(7), zoneadm(8), zonecfg(8)

illumos February 5, 2022 illumos