NAME
boot.config —
Configuration file for the boot
blocks
DESCRIPTION
Theboot.config file contains options for the
FreeBSD boot block code.
When the FreeBSD boot loader runs, it
searches the “a” slice of the boot
partition for a boot.config file (as a result,
slices which are missing an “a”
partition require user intervention during the boot process). If the
boot.config file is found, its contents are used as
the default configuration options for the boot block code and are echoed to
the system console.
A valid format of this file is to put BIOS drive number, a
controller type, a unit number, a partition, a kernel file name, and any
other valid boot(8) option on a single line, as it is done at the
“boot:” prompt.
The options related to the boot image selection described below
and all the other options available for boot.config
are documented in detail in the
boot(8) manual page.
FILES
- /boot.config
- parameters for the boot blocks (optional)
EXAMPLES
The command:
# echo "-P" > /boot.config
will activate the serial console of FreeBSD.
The command:
# echo "1:ad(1,a)/boot/loader" > /boot.config
will instruct the second stage of boot(8) on the first disk to boot with the third boot(8) stage from the second disk.
The command:
# echo "1:ad(1,a)/boot/loader -P" > /boot.config
will do both of the above.
SEE ALSO
AUTHORS
This manual page was written by Daniel Gerzo <danger@FreeBSD.org>.