23 Oct
2017
23 Oct
'17
2:10 a.m.
On Sat, 21 Oct 2017, Rob Jarratt 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.
You don't use rcp but rsh (or ssh), for example:
# dd if=/dev/... bs=32768 conv=noerror,sync | rsh otherhost "cat
>/dest/path"
You should use a bigger blocksize than the default of 512 bytes, otherwise
reading will be quite slow...
Or (my preferred way under UNIX), just mount a remote filesystem via NFS
;-)
Christian