boot(8)
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BOOT(8) NetBSD/mvme68k System Manager's Manual BOOT(8)
NAME
boot -- system bootstrapping procedures
DESCRIPTION
Power fail and crash recovery
Normally, the system will reboot itself at power-up or after crashes. An
automatic consistency check of the file systems will be performed as
described in fsck(8). and unless this fails, the system will resume
multi-user operations.
Cold starts from disk
The disk-boot program (/usr/mdec/bootsd) will attempt to load netbsd from
partition A of the boot device, which must currently be an ``sd'' disk.
Cold starts from tape
The tape-boot program (/usr/mdec/bootst) will attempt to load netbsd from
a SCSI tape drive.
Cold starts over a network
The network boot program (/usr/mdec/netboot) will load netbsd from the
NFS root as determined by the procedure described in diskless(8). Note
that the MVME147 is unable to boot directly from the network without the
help of a small bootloader program (/usr/mdec/sboot).
Boot program options
-a Prompt for the root file system device, the system crash dump
device, and the path to init(8).
-d Bring the system up in debug mode. Here it waits for a kernel
debugger connect; see ddb(4).
-q Boot the system in quiet mode.
-s Bring the system up in single-user mode.
-v Boot the system in verbose mode.
Any extra flags or arguments, or the <boot string> after the -- separator
are passed to the boot PROM. Other flags are currently ignored.
At any time you can break to the kernel debugger ddb(4) (assuming options
DDB was specified in the kernel configuration file) by sending a serial
line BREAK character. If you do this accidentally you can continue what-
ever was in progress by typing `c' followed by the return key.
FILES
/netbsd system code
/usr/mdec/bootxx first-level boot block for disks
/usr/mdec/stboot first-level boot block for tapes
/usr/mdec/bootsd second-level boot block for UFS disks
/usr/mdec/bootst second-level boot block for tapes
/usr/mdec/netboot boot program for NFS (diskless) boot
/usr/mdec/sboot network bootstrap program for MVME147
/usr/mdec/installboot program to install bootxx on a disk
SEE ALSO
disklabel(8), fsck(8), halt(8), init(8), rc(8), shutdown(8), syslogd(8)
NetBSD 7.1_STABLE April 8, 2003 NetBSD 7.1_STABLE
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