4.4BSD/usr/share/man/cat8/fastboot.0

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FASTBOOT(8)               BSD System Manager's Manual              FASTBOOT(8)

NNAAMMEE
     ffaassttbboooott, ffaasstthhaalltt - reboot/halt the system without checking the disks

SSYYNNOOPPSSIISS
     ffaassttbboooott [_b_o_o_t_-_o_p_t_i_o_n_s]
     ffaasstthhaalltt [_h_a_l_t_-_o_p_t_i_o_n_s]

DDEESSCCRRIIPPTTIIOONN
     FFaassttbboooott and ffaasstthhaalltt are shell scripts which reboot and halt the system
     without checking the file systems.  This is done by creating a file
     _/_f_a_s_t_b_o_o_t, then invoking the reboot program.  The system startup script,
     _/_e_t_c_/_r_c, looks for this file and, if present, skips the normal invocation
     of fsck(8).

SSEEEE AALLSSOO
     halt(8),  reboot(8),  rc(8)

HHIISSTTOORRYY
     The ffaassttbboooott command appeared in 4.2BSD.

4.2 Berkeley Distribution        June 5, 1993                                1