remote boot server
utility services boot requests from
Hewlett-Packard workstations over a local area network. All boot files must
reside in the boot file directory; further, if a client supplies path
information in its boot request, it will be silently stripped away before
processing. By default, rbootd
only responds to
requests from machines listed in its configuration file.
The options are as follows:
- Respond to boot requests from any machine. The
configuration file is ignored if this option is specified.
- Run rbootd in debug mode.
Packets sent and received are displayed to the terminal.
- Service boot requests on specified
interface. If unspecified,
rbootd searches the system interface list for
the lowest numbered, configured “up” interface (excluding
loopback). Ties are broken by choosing the earliest match.
on the command line
to use a different configuration
file from the default.
The configuration file is a text file where each line describes a particular
machine. A line must start with a machine's Ethernet address followed by an
optional list of boot file names. An Ethernet address is specified in
hexadecimal with each of its six octets separated by a colon. The boot file
names come from the boot file directory. The Ethernet address and boot file(s)
must be separated by whitespace and/or comma characters. A pound sign causes
the remainder of a line to be ignored.
Here is a sample configuration file:
# Ethernet addr boot file(s) comments
08:00:09:0:66:ad SYSHPBSD # snake (4.3BSD)
08:00:09:0:59:5b # vandy (anything)
8::9:1:C6:75 SYSHPBSD,SYSHPUX # jaguar (either)
logs status and error messages via
. A startup message is
always logged, and in the case of fatal errors (or deadly signals) a message
is logged announcing the server's termination. In general, a non-fatal error
is handled by ignoring the event that caused it (e.g., an invalid Ethernet
address in the config file causes that line to be invalidated).
The following signals have the specified effect when sent to the server process
using the kill(1)
- Drop all active connections and reconfigure.
- Turn on debugging, do nothing if already on.
- Turn off debugging, do nothing if already off.
- packet-filter device
- configuration file
- debug output
- directory containing boot files
If multiple servers are started on the same interface, each will receive and
respond to the same boot packets.