|BOOT(9)||Kernel Developer's Manual||BOOT(9)|
boot — halt or
reboot the system
function handles final system shutdown, and either halts or reboots the
system. The exact action to be taken is determined by the flags passed in
howto and by whether or not the system has finished
If the system has finished autoconfiguration,
- If this is the first invocation of
boot() and the
RB_NOSYNCflag is not set in howto, syncs and unmounts the system disks by calling vfs_unmountall(9).
- Disables interrupts.
- If rebooting after a crash (i.e., if
RB_DUMPis set in howto, but
RB_HALTis not), saves a system crash dump.
- Runs any shutdown hooks previously registered.
- Prints a message indicating that the system is about to be halted or rebooted.
RB_HALTis set in howto, halts the system. Otherwise, reboots the system.
If the system has not finished autoconfiguration,
any shutdown hooks previously registered, prints a message, and halts the
|February 14, 1997||Debian|