02-27-2011
Oh, so it's not much different than solving the problem of lost root password on a linux machine. And finally it is clear that I am presented with a console login, not ALOM.
Editing the /etc/shadow file is something I did couple of times on Ubuntu, so I am familiar with root pass recovery. However, in this case I don't think it is going to be THAT straightforward. I have a CD-ROM on the V100 machine and no floppy, and my outdated lab computers aren't able to burn a LiveCD image for me since both have DVD-ROM's. And no USB boot capability on my V100 either, since OpenBoot firmware is older than the recommended version.
Network installation of a LiveCD to the rescue? Is it possible to network boot a LiveCD without ANY intervention on the client? Is it possible to use a Windows machine as a boot server that will host the LiveCD image? I can't get past the console login screen let alone edit files on the V100 machine...
P.S. I found an OpenSolaris LiveCD image for SPARC machines and I hope it'll work for me.
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LEARN ABOUT FREEBSD
boot.config
BOOT.CONFIG(5) BSD File Formats Manual BOOT.CONFIG(5)
NAME
boot.config -- Configuration file for the boot blocks
DESCRIPTION
The boot.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
boot(8), loader(8)
AUTHORS
This manual page was written by Daniel Gerzo <danger@FreeBSD.org>.
BSD
May 13, 2007 BSD