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@@ -19,30 +19,43 @@
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#
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# <runlevels>: The runlevels field is completely ignored.
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#
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-# <action>: Valid actions include: sysinit, respawn, askfirst, wait, once,
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-# restart, ctrlaltdel, and shutdown.
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+# <action>: Valid actions include: sysinit, wait, once, respawn, askfirst,
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+# shutdown, restart and ctrlaltdel.
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#
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-# Note: askfirst acts just like respawn, but before running the specified
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-# process it displays the line "Please press Enter to activate this
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-# console." and then waits for the user to press enter before starting
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-# the specified process.
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+# sysinit actions are started first, and init waits for them to complete.
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+# wait actions are started next, and init waits for them to complete.
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+# once actions are started next (and not waited for).
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#
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-# Note: unrecognized actions (like initdefault) will cause init to emit
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-# an error message, and then go along with its business.
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+# askfirst and respawn are started next.
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+# For askfirst, before running the specified process, init displays
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+# the line "Please press Enter to activate this console"
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+# and then waits for the user to press enter before starting it.
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+#
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+# shutdown actions are run on halt/reboot/poweroff, or on SIGQUIT.
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+# Then the machine is halted/rebooted/powered off, or for SIGQUIT,
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+# restart action is exec'ed (init process is replaced by that process).
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+# If no restart action specified, SIGQUIT has no effect.
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+#
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+# ctrlaltdel actions are run when SIGINT is received
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+# (this might be initiated by Ctrl-Alt-Del key combination).
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+# After they complete, normal processing of askfirst / respawn resumes.
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+#
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+# Note: unrecognized actions (like initdefault) will cause init to emit
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+# an error message, and then go along with its business.
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#
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# <process>: Specifies the process to be executed and it's command line.
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#
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# Note: BusyBox init works just fine without an inittab. If no inittab is
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# found, it has the following default behavior:
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-# ::sysinit:/etc/init.d/rcS
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-# ::askfirst:/bin/sh
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-# ::ctrlaltdel:/sbin/reboot
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-# ::shutdown:/sbin/swapoff -a
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-# ::shutdown:/bin/umount -a -r
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-# ::restart:/sbin/init
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-# tty2::askfirst:/bin/sh
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-# tty3::askfirst:/bin/sh
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-# tty4::askfirst:/bin/sh
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+# ::sysinit:/etc/init.d/rcS
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+# ::askfirst:/bin/sh
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+# ::ctrlaltdel:/sbin/reboot
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+# ::shutdown:/sbin/swapoff -a
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+# ::shutdown:/bin/umount -a -r
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+# ::restart:/sbin/init
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+# tty2::askfirst:/bin/sh
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+# tty3::askfirst:/bin/sh
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+# tty4::askfirst:/bin/sh
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#
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# Boot-time system configuration/initialization script.
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# This is run first except when booting in single-user mode.
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Denys Vlasenko