brc(ADM)                        19 June 1992                        brc(ADM)


 Name

    brc, bcheckrc - system initialization procedures

 Syntax

    /etc/bcheckrc [ -a ]

    /etc/brc

 Description

    These shell procedures are executed via entries in /etc/inittab by
    init(M) whenever the system is booted (or rebooted).

    First, the bcheckrc procedure checks the status of the root filesystem.
    If the root filesystem is found to be bad, bcheckrc repairs it.  When
    invoked with the -a (autoboot) flag, bcheckrc will run without operator
    intervention. init calls bcheckrc with the -a flag when the system auto-
    boots.

    Then, the brc procedure clears the mounted filesystem table, /etc/mnttab,
    and puts the entry for the root filesystem into the mount table.

    After these two procedures have executed, init checks for the ``initde-
    fault'' value in /etc/inittab.  This tells init in which run-level to
    place the system.  Since ``initdefault'' is initially set to 2, the sys-
    tem will be placed in the multi-user state via the /etc/rc2 procedure.

    Note that bcheckrc should always be executed before brc.  Also, these
    shell procedures may be used for several run-level states.

 See also

    boot(HW), fsck(ADM), init(M), rc2(ADM), shutdown(ADM)