NAME

reboot − ULTRIX bootstrapping procedures

SYNTAX

/etc/reboot [ −n ] [ −q ]

DESCRIPTION

The ULTRIX system is started by placing it in memory at location zero and transferring to zero.  Since the system is not reenterable, it is necessary to read it in from disk or tape each time it is to be bootstrapped. 

Rebooting a running system.  When an ULTRIX system is running and a reboot is desired, shutdown(8) is normally used.  If there are no users then /etc/reboot can be used.  Reboot causes the disks to be synced, and then a multiuser reboot (as described below) is initiated.  This causes a system to be booted and an automatic disk check to be performed.  If all this succeeds without incident, the system is then brought up for many users. 

Options to reboot are:

−n option avoids the sync. 

−q reboots quickly and ungracefully, without shutting down running processes first. 

Power fail and crash recovery.  Normally, the system will reboot itself at power-up or after crashes.  Provided the auto-restart is enabled on the machine front panel, an automatic consistency check of the file systems will be performed then and unless this fails the system will resume multiuser operations. 

FILES

/vmunixsystem code

SEE ALSO

crash(8v), fsck(8), halt(8), init(8), newfs(8), rc(8), shutdown(8)