23 Oct
2017
23 Oct
'17
1:32 a.m.
On 21 Oct 2017, at 21:40, Rob Jarratt via cctalk
<cctalk at classiccmp.org> wrote:
I have a couple of hard disks I want to make dd copies of. I have Ultrix
running on my DECstation 5000/240 with the disk I want to clone attached to
it. The trouble is that I don't have enough disk space on the machine to
clone the disk and then grab the image using FTP. I have been trying to find
a way to pipe the dd output over the network to a SIMH Ultrix machine that
has plenty of disk space. I tried piping dd into rcp, but rcp doesn't seem
to take input from standard input. I have looked at cpio, but that too
appears not to accept input from standard input.
Unix is not my strong point. Are there any other ways I could pipe the dd
output across the network to a machine that has enough disk space?
netcat (nc) is the usual tool to do this on Unix type systems. Whether it?s available for
Ultrix I don?t know but it may ?just compile?.
If not, it?s not hard to write two simple programs to read from stdin and output to a
TCP/IP socket on another host and the second to read from the socket and output to
stdout.
If I had to write the programs I?d either google for an example to copy or have a read of
Stevens ?TCP/IP illustrated? book series - the only risk of reading them (there are 3
volumes) is that you can spend 6 months just learning and not doing :-)'
Huw Davies | e-mail: Huw.Davies at kerberos.davies.net.au
Melbourne | "If soccer was meant to be played in the
Australia | air, the sky would be painted green"