In a load request received by mopd a filename can be given by the client. This is the normal case for terminal servers. If a filename isn't in the client load request mopd must know what image to load.
Upon receiving a request,
mopd
checks if the requested file exists in
/tftpboot/mop
(unless the
-s
option is given, see below) the filename is normally uppercase and with an
extension of
.SYS.
If the filename isn't given, the ethernet address of the target is used as
filename, e.g.
08002b09f4de.SYS
and it might be a soft link to another file.
mopd supports two kinds of files. The first type that is check is if the file is in a.out(5) format. If not, a couple of Digital's formats are checked.
In normal operation, mopd forks a copy of itself and runs in the background. Anomalies and errors are reported via syslog(3).
/tftpboot/mop
to
mopdir.
/tftpboot/mop.SYS
to the filename provided by the client.
The typical client sends the requested file name in upper case.