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NAME
sleeping-getty - Do not start a full-blown getty before it is necessary
SYNOPSIS
sleeping-getty vtno getty-command [arguments] ...
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 what 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
waste memory until they are actually used. This becomes extra
important on resource-constrained machines.
SEE ALSO
getty(8), mingetty(8), agetty(8), got(8), vtchs(1), inittab(5)
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