Re: [Pretest-users] Sending data from host to guest in qemu

[Assaf Gordon]

Hello Gavin,

On 06/03/2015 03:32 PM, Gavin Smith wrote:
> How would I copy a file from my hard disk into a virtual image, running in qemu?
<...>
> I saw that the "-net user" option connected the VM to the network, but
> I don't know how to send files into the VM. Does the VM have an IP
> address?

Yes, exactly with the "-net user" option, but with additional parameters:

Add "-net user,hostfwd=tcp:127.0.0.1:1025-:22" to forward port 1025 on the host 
to port 22 on the guest.

Then, from the host, you can login with SSH:
   ssh -p 1025 address@hidden

and use 'scp' from the host to copy files into/out from the guest:
   scp -o Port=1025 HOSTFILE address@hidden:GUESTFILE

Also,
from inside the guest, address 10.0.2.2 is mirrored to the host's 127.0.0.1.
So from inside the guest, you should be able to do:
   ssh address@hidden
and login with SSH to your host (if that setup is enabled on your host).

hope this helps,
 - assaf

P.S.
There's a perl script that wraps all of that together for easier execution (if 
you prefer):
  http://git.savannah.gnu.org/cgit/pretest.git/tree/pretest-run.pl

Then all you need to do is:
  ./pretest-run.pl netbsd614.build-ready.qcow2

and it should 'just work'.