Hi there!

   I wanted to backup my NetBSD-1.4.2/i386 server, but it is one
problem. I want to use `dump` for it. But I found, that NetBSD's dump
havn't -a switch. In other systems -a switch turn off tape counter to
prevent end-of-tape earlier than tape really ended.

My streamer is with compression, so I don't know real tape capacity. For
example Solaris ufs_dump and OpenBSD dump has -a switch, which turn on
end-of-tape signal recognition. 

May be I do something wrong, but it seems unable to dump on unknown backup
device.