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HALT(8)             UNIX Programmer's Manual		  HALT(8)



[1mNAME
     [0mhalt, reboot - halt or reboot the system

[1mSYNOPSIS
     /sbin/halt [0m[ [1m-n [0m] [ [1m-q [0m] [ [1m-y [0m]
     [1m/sbin/reboot [0m[ [1m-n [0m] [ [1m-q [0m] [ [1m-s [0m] [ [1m-RISCOS [0m] [ [1m-y [0m]

[1mDESCRIPTION
     [0m_H_a_l_t writes out cached information to the disks and then
     stops execution of [1mRISC[0m_i[1mX[0m, with control passing to the
     [1mRISCOS [0moperating system. If the [1mRISCiXFS [0mmodule had been
     configured to automatically invoke [1mRISC[0m_i[1mX [0mwhenever the
     workstation is booted, then it is inappropriate for control
     to be passed to [1mRISCOS[0m, in which case the processor just
     loops.

     The [1m-RISCOS [0moption to _r_e_b_o_o_t will allow control to be passed
     to [1mRISCOS [0mregardless of whether [1mRISCiXFS [0mhas been configured
     to automatically boot [1mRISC[0m_i[1mX[0m.

     _R_e_b_o_o_t writes out cached information and then reboots
     [1mRISCOS[0m.  When the [1mRISCiXFS [0mmodule is started (usually from
     the [1mRISCOS [0m!Boot file) [1mRISC[0m_i[1mX [0mis automatically rebooted.

     The net effect is that _r_e_b_o_o_t causes [1mRISC[0m_i[1mX [0mto reboot in
     [1mmulti-user [0mmode, see _i_n_i_t(8), after a short delay.  The [1m-s
     [0moption causes the reboot to be in [1msingle-user [0mmode.  This
     option is ineffective if the secure boot version of [1mRISCiXFS
     [0mis installed in [1mRISCOS [0mor if the machine is configured to
     automatically boot unix.  In the first case [1mRISC[0m_i[1mX [0mwill
     always reboot in secure mode, requiring the entry of the
     super-user password to get into single-user mode.	In the
     second [1mRISC[0m_i[1mX [0mwill always reboot in multi-user mode.

     The [1m-n [0moption prevents the sync before stopping.  The [1m-q
     [0moption causes a quick halt, no graceful shutdown is
     attempted.  The [1m-y [0moption is needed if you are trying to
     halt the system from a dialup.

     _H_a_l_t and _r_e_b_o_o_t normally log the shutdown using _s_y_s_l_o_g(8)
     and places a shutdown record in the login accounting file
     /var/adm/wtmp.

     These programs are in fact links to the same file, thus all
     the options available to _r_e_b_o_o_t can be used with _h_a_l_t,
     although the results are not normally useful.  This file is
     supplied without the _s_e_t-_u_i_d bit set, thus only the super
     user can shut down the system. If the system administrator
     so wishes, he (or she) can set the _s_e_t-_u_i_d bit so that all
     users (or all members of a particluar group) are able to
     shut down the system.




Printed 31/3/92     Revision 1.10 of 23/11/90			1






HALT(8)             UNIX Programmer's Manual		  HALT(8)



[1mSEE ALSO
     [0mshutdown(8), syslog(8), fastboot(8)





















































Printed 31/3/92     Revision 1.10 of 23/11/90			2



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