Re: [Qemu-devel] Newbie Qeustions

["Thomas Munn" <munntj@shands.ufl.edu>]

Dear Lonnie:

Several issues:

1.  QEMU-FAST only works with a specially modified kernel to which the
appropriate patch has been applied on the GUEST (not host) side.

2.  Haven't used user-net, but I can provide a somewhat working tun
script (allows outside access to box).  --user-net DOES NOT use the tun
device, it emulates user mode over ppp???(not sure on this I am sure
list will correct!), however the tun device is used for "actual"
networking, and called via the -n /path/to/script (very hard to find,
can post (there are several others floating around the list).  

Hope this helps 

Thomas
 
 
>>>lonnie@neenet.com 08/28 12:28 pm >>> 
Hello All, 
 
I am QEMU and would like to use it to work with a new Linux Distro that 
I am trying to build. Looks like it will save me a lot of work in not 
having to re-boot all of the time. 
 
My host machine is a Linux Mandrake 10.0 version and I have installed 
the QEMU along with reading over the documentation as well. 
 
I try to run "qemu-fast -user-net linux.img" 
 
after downloading the linux.img file from 
 
http://fabrice.bellard.free.fr/qemu/ 
 
The problem is that even though I have made the TUN device like 
 
mknod /dev/net/tun c 10 200 
add the proper alias to the /etc/modules.conf 
echo 1 > /proc/sys/net/ipv4/ip_forward 
 
QEMU cannot seem to find the ethernet connection when the linux.img
boots. 
 
Not sure what is happening here. 
 
Any help would be greatly appreciated. 
 
Thanks, 
Lonnie