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NAME
sleeping-getty - Do not start a fullblown getty before it is necessary
SYNOPSIS
sleeping-getty VTNO GETTY_COMMAND...
DESCRIPTION
sleeping-getty shall wait until VTNO (a number of a virtual terminal)
becomes the foreground console. Then, it shall execvp(3) to GETTY_COMMAND,
with GETTY_COMMAND and all following arguments as the command line
arguments.
Note that sleeping-getty works on VT:s, not TTY:s. It cannot wait for a
serial console to become, active, only virtual terminals.
EXAMPLE
/sbin/sleeping-getty 15 /sbin/got tty15 TERM=linux
/sbin/sleeping-getty 16 /sbin/got tty16 TERM=linux
/sbin/sleeping-getty 20 /sbin/agetty -8 -s 38400 tty20 linux
NOTES
sleeping-getty does not acquire the TTY. That would be a waste
of CPU cycles. This means, if naïvely used, that if you start
your computer, log in on tty1, and start X, and have startx
configured to start X on the next available VT. X will start
on VT 2. This is probably not want you want. Instead you
should edit startx to ensure that a VT lower than a preferred
number (customarily 7) will not be used.
RATIONALE
It is nice to have a score or two of TTY:s available. However,
starting them, can require some unnecessary CPU time and will
was memory until they are actually used. This becomes extra
important on resource contained machines.
SEE ALSO
getty(8), mingetty(8), agetty(8), got(8), vtchs(1), inittab(5)
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