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This explains how uml_net now automatically configures the tap device.

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freesource 2001-12-12 00:49:12 +00:00
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35
add-ons/yard/make-debian-X11/replacements/root/README-debian-X11
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@ -1,4 +1,4 @@
$Id$
$Id: README-debian-X11,v 1.4 2001/11/08 06:16:29 freesource Exp $
make_debian-X11 replacement
Setting up the root filesystem
@ -26,31 +26,28 @@ a uml ip of 192.168.1.2 and a tap device ip of 192.168.1.5.
2. If you haven't already done this, you will want to edit the
/etc/network/interfaces file using vi. This should be self-explanatory.
3. Load any modules required by your host system. If you decide to use
tap, do this:
3. You don't need to load any modules required by your host system, because
uml_net will cause the modules to be loaded automatically - assuming your
kernel has kmod - when it automatically configures the tap device interface
for ethertap. But if you want or need to do it manually from your host
system, you could do something like this:
modprobe ethertap
modprobe netlink_dev
modprobe ethertap
modprobe netlink_dev
ifconfig tap0 192.168.1.5
route add -host 192.168.1.4 gw 192.168.1.5
4. Configure the device on your host system. Here the tap device is being
set to 192.168.1.5 and then routed to the host 192.168.1.4:
ifconfig tap0 192.168.1.5
route add -host 192.168.1.4 gw 192.168.1.5
5. The next time you start the uml kernel and boot the root_fs you will want
4. The next time you start the uml kernel and boot the root_fs you will want
to give it options like this where HWaddr (see ifconfig) belongs to your
network device:
ubd0=/root_fs_debian_x11 root=/dev/ubd0 eth0=ethertap,tap0,HWaddr,192.168.1.5 mem=64M
ubd0=/root_fs_debian_x11 root=/dev/ubd0 eth0=ethertap,tap0,HWaddr,192.168.1.5 mem=64M
Hint: An easier way to do this would be to use the UML box in gbootroot from
your host computer. No .. uml doesn't work within uml. :)
5. At this point you should be able to ping 192.168.1.4.
6. At this point you should be able to ping 192.168.1.4.
Hint: Check to make sure that uml_net came bundled with the uml kernel,
because this is what enables networking.
Hint: Check to make sure that uml_net came bundled with the uml kernel,
because this is what enables networking, and make sure it is setuid root
(chmod 4755).
6. Run startx. It will ask for your host ip number.