I get the following error during a tftp boot of the
nfsnetbsd.ecoff kernel on a DS5000/25:

844736+41600?IO: 3/tftp, a.out err (-5)

during the boot command

>> boot 3/tftp/nfsnetbsd.ecoff

The same error happens with netbsd.ecoff.
It is distinct to the error obtained when trying to
boot netbsd.elf:

IO: 3/tftp, a.out err (-2)

Is this information useful?:

bootpd: info(6):   bootptab mtime: Sat Jul  5 16:18:58 1997
bootpd: info(6):   reading "/etc/bootptab"
bootpd: info(6):   read 3 entries (2 hosts) from "/etc/bootptab"
bootpd: info(6):   recvd pkt from IP addr 131.181.17.204
bootpd: info(6):   bootptab mtime: Sat Jul  5 16:18:58 1997
bootpd: info(6):   request from IP addr 131.181.17.204
bootpd: info(6):   found 131.181.17.204 (decstation1)
bootpd: info(6):   bootfile="/tftpboot/nfsnetbsd.ecoff"
bootpd: info(6):   vendor magic field is 0.0.0.0
bootpd: info(6):   sending reply (with RFC1048 options)

Any ideas?

Regards,
Greg

-- 
Gregory McGarry
Signal Processing Research Centre
School of Electrical and Electronic Systems Engineering
Queensland University of Technology, Australia