NetBSD does not support booting from disk on systems lacking an ARCS-compatible firmware (presently supported systems include Personal Iris and Indigo R3000). It is possible to work around this by creating a sufficiently large volume header and placing the kernel in it, or by network booting.
Some firmware revisions have a bug, which precludes them from communicating with TFTP servers using ports above 32767. When using
NetBSD as the TFTP server, this problem may be worked around as follows:
sysctl -w net.inet.ip.anonportmin=20000
sysctl -w net.inet.ip.anonportmax=32767
Another bug exists in some firmware revisions, which precludes the PROM from communicating with TFTP servers that employ PMTU (Path MTU) discovery. This bug may be worked around by disabling PMTU on the TFTP server. This does not presently affect
NetBSD servers.
This man page is horribly incomplete.