uml: add v6.18 as testing kernel

Check out the TESTING_KERNEL option to build OpenWrt UML with v6.18.
Be aware that the old UML networking is now gone! Please checkout:

https://docs.kernel.org/virt/uml/user_mode_linux_howto_v2.html#setting-up-uml-networking

Note: v6.12 already supported vector transports.
The README.md has been updated to reflect this change.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
This commit is contained in:
Christian Lamparter committed 2026-08-01 17:27:20 +02:00
1 parent 4afad52b38
commit c817d9a34f
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+7 -17

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@@ -15,6 +15,7 @@ FEATURES:=audio ext4 rootfs-part squashfs
SUBTARGETS:=generic
KERNEL_PATCHVER:=6.12
KERNEL_TESTING_PATCHVER:=6.18
include $(INCLUDE_DIR)/target.mk
+6 -17
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@@ -31,21 +31,10 @@ playing in the world of 'embedded routers' along with all the resource
restrictions that come with that world.
To configure networking and more refer to the *user mode linux* documentation
online. A quick start goes along this line. Install the `uml-utilities`
packages so you have the `uml_switch` in and running, then add a command param
to your uml start like this:
online:
https://docs.kernel.org/virt/uml/user_mode_linux_howto_v2.html#setting-up-uml-networking
```shell
eth0=daemon,00:01:01:01:01:01,unix,/<your uml switch control socket here>
```
With that in, and uml networking actually functional (can be a challenge at
times), you should be able to `ifconfig` the interface and talk to the host
side or if you bridged the uml switch to your host network, you should be able
to run `udhcp` and be away with networking off to the world. Again, if you are
unfamiliar with uml and uml networking, please read the docs and how-to stuff
available on the net. It does take some fiddling to get it started and working
right the first time, but after that, it opens up a whole new world of virtual
machines.
http://user-mode-linux.sourceforge.net/
Actually functional uml networking can be a challenge at times. Again, if you are
unfamiliar with uml and uml networking, please read the docs and how-to stuff available
on the net. It does take some fiddling to get it started and working right the first
time, but after that, it opens up a whole new world of virtual machines.