[nflug] speed imaging netcat

[Joshua Johnson]

I don't know much about netcat. But it looks like it is gzipping after the
transfer. Would something like this work:

-Start up nc to listen but without piping to gzip. But send to the same
file.
- On the other machine do
    dd if=/dev/sda |gzip -c -9 | nc -w 5 computer_ip_adress 9000


That way it would compress and then send it over your network (instead of
sending over your network and then compressing). Unless it is already doing
that and I misread the initial steps.

On Mon, Nov 3, 2008 at 12:43 PM, Eric Benoit <eric at bootz.us> wrote:

> *I'm trying to image a ssd drive across the network to my hard drive, I
> used the directions below and everything is working fine, however it is slow
> as time next to a blackhole ;)
>
> does anyone know a way I could speed things up a bit or byte?
>
>
> based on the following instructions:
> *
>
> This method uses dd and nc provided by the Debian Installer and another
> computer located on your local network:
>
>   * First, boot the debian installer on your USB disk
>   * Then be sure to activate network and configure it, same thing for
>     the disk (Do not partition it)
>   * Open a console shell (Alt+F2 or from the Debian Installer menu)
>   * On the backup computer:
>         o get its IP adress (ifconfig)
>         o start a listening nc session on port 9000:
>
> nc -l -p 9000 | gzip -1 -c > ./eeepc.img.gz
>
>   * With netcat-openbsd installed this line should read
>
> nc -l 9000 | gzip -1 -c > ./eeepc.img.gz
>
>   * On the EeePC shell:
>
> dd if=/dev/sda | nc -w 5 computer_ip_adress 9000
>
> Wait some minutes (about 35)... and you get a eeepc.img.gz with about 900Mb
>
> from the website:
> *
> http://tinyurl.com/5hozkf
>
>
> Thank you,
> Eric
> *
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