boot(8)
- NetBSD Manual Pages
BOOT(8) NetBSD/sun3 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
A disk-boot program (/usr/mdec/ufsboot) will attempt to load netbsd from
partition A of the boot device, which must currently be an ``sd'' disk.
Alternatively, network boot program (/usr/mdec/netboot) will load netbsd
from the NFS root as determined by the procedure described in
diskless(8).
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 back to the ROM by pressing the `L1' and `a'
keys at the same time (if the console is a serial port the same is
achieved by sending a `break'). If you do this accidentally you can con-
tinue whatever 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/netboot boot program for NFS (diskless) boot
/usr/mdec/ufsboot second-level boot program for UFS disks
/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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