Hi everyone,

I'm new to UML, having issues bring up DHCP for my uml.

step 1:
./kernel2.6.39  ubda=./debian50.rfs  mem=128M  eth0=tuntap,,,

so as you see,
kernel: Linux (none) #2 Thu Sep 1 11:25:36 EDT 2011 i686 GNU/Linux
rootfs: Debian-5.0-x86-root_fs

step 2:
After it boots,
(none):/etc/init.d# /etc/init.d/networking restart

Configuring network interfaces...Internet Systems Consortium DHCP Client V3.1.1
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

[    3.660000] helper_wait : waitpid process 13629 failed, errno = 10
[    3.660000] * modprobe tun
[    3.660000] * ifconfig tap0 netmask up
[    3.660000] * bash -c echo 1 > /proc/sys/net/ipv4/ip_forward
Listening on LPF/eth0/ba:b4:8c:0a:56:95
Sending on   LPF/eth0/ba:b4:8c:0a:56:95
Sending on   Socket/fallback
DHCPDISCOVER on eth0 to port 67 interval 3
DHCPDISCOVER on eth0 to port 67 interval 7
DHCPDISCOVER on eth0 to port 67 interval 8

step 3:
On the other hand, if i type these 2 commands,
ifconfig eth0 netmask up

route add default gw eth0

static ip will be up for eht0, i can do ping etc.

step 4:
Note for the /etc/dhcp3/dhclient.conf, i didn't change anything from the original debian_5.0 rootfs.
As i compared with the one from my ubuntu desktop, they look almost the same. Certainly my ubuntu works.
(I'm using debian rootfs as none of the ubuntu rootfs i downloaded works.)

Having been struggling this for 1 week, any help appreciated !