Ubuntu with Click

We have two OS images with support for The Click Modular Router: Ubuntu804-click and Ubuntu1004-click20.

We support click 1.8 (in Ubuntu804-click) and click 2.0 (in Ubuntu1004-click20).

Ubuntu804-click

Ubuntu804-click is based on Ubuntu804-STD with the following modifications

  • loads as a full disk image with about 15 GB free on /
  • kernel 2.6.24.7-click
  • click 1.8.0 installed in /usr/local
  • click and kernel source in /usr/src

Ubuntu1004-click20

Ubuntu1004-click20 is based on Ubuntu1004-STD with the following modifications

  • loads as a full disk image with about 12 GB free on /
  • stock Ubuntu kernel
  • click 2.0 installed in /usr/local
  • click source in /usr/src

Ubuntu1204-64-Click

Ubuntu1204-64-Click is click on Ubuntu 12.

Using click

click is installed in /usr/local. If you do not require custom modules, the images should be usable out of the box.

Running the example

For a simple example, download test.click and copy it to your home directory on users.

On a node running Ubuntu804-click or Ubuntu1004-click20, run the following command:

sudo click-install test.click

This will install the example configuration into click running in the kernel. If it succeeds, you should see output similar to the following by running dmesg or reading /var/log/kern.log:

[66530.612983] chatter: ok:   40 | 45000028 00000000 401177c3 01000001 02000002 13691369
[66530.620905] chatter: ok:   40 | 45000028 00000000 401177c3 01000001 02000002 13691369
[66530.628821] chatter: ok:   40 | 45000028 00000000 401177c3 01000001 02000002 13691369
[66530.636725] chatter: ok:   40 | 45000028 00000000 401177c3 01000001 02000002 13691369
[66530.644618] chatter: ok:   40 | 45000028 00000000 401177c3 01000001 02000002 13691369

Building custom modules

The source for click is in /usr/src/click-1.8.0 or /usr/src/click-2.0.

Custom modules are typically built in the local elements folder. Copy your source files into /usr/src/click-1.8.0/elements/local or /usr/src/click-2.0/elements/local and give configure the --enable-local flag.

Ubuntu804-click

In click 1.8, you must give configure the path to the kernel source.

$ sudo -s
# cd /usr/src/click-1.8.0
# ./configure --with-linux=/usr/src/linux-2.6.24.7 --enable-local

Ubuntu1004-click20

$ sudo -s
# cd /usr/src/click-2.0
# ./configure --enable-local

Building and installing

At this point building and installing is as simple as:

# make && make install

Further Reading

Last modified 4 years ago Last modified on Jul 16, 2015 5:14:33 PM

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