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:title: Rackspace Cloud Installation
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:description: Installing Docker on Ubuntu proviced by Rackspace
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:keywords: Rackspace Cloud, installation, docker, linux, ubuntu
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===============
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Rackspace Cloud
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===============
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Please note this is a community contributed installation path. The only 'official' installation is using the
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:ref:`ubuntu_linux` installation path. This version may sometimes be out of date.
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Installing Docker on Ubuntu proviced by Rackspace is pretty straightforward, and you should mostly be able to follow the
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:ref:`ubuntu_linux` installation guide.
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**However, there is one caveat:**
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If you are using any linux not already shipping with the 3.8 kernel you will need to install it. And this is a little
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more difficult on Rackspace.
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Rackspace boots their servers using grub's menu.lst and does not like non 'virtual' packages (e.g. xen compatible)
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kernels there, although they do work. This makes ``update-grub`` to not have the expected result, and you need to
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set the kernel manually.
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**Do not attempt this on a production machine!**
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.. code-block:: bash
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# update apt
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apt-get update
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# install the new kernel
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apt-get install linux-generic-lts-raring
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Great, now you have kernel installed in /boot/, next is to make it boot next time.
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.. code-block:: bash
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# find the exact names
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find /boot/ -name '*3.8*'
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# this should return some results
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Now you need to manually edit /boot/grub/menu.lst, you will find a section at the bottom with the existing options.
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Copy the top one and substitute the new kernel into that. Make sure the new kernel is on top, and double check kernel
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and initrd point to the right files.
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Make special care to double check the kernel and initrd entries.
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.. code-block:: bash
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# now edit /boot/grub/menu.lst
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vi /boot/grub/menu.lst
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It will probably look something like this:
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::
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## ## End Default Options ##
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title Ubuntu 12.04.2 LTS, kernel 3.8.x generic
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root (hd0)
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kernel /boot/vmlinuz-3.8.0-19-generic root=/dev/xvda1 ro quiet splash console=hvc0
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initrd /boot/initrd.img-3.8.0-19-generic
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title Ubuntu 12.04.2 LTS, kernel 3.2.0-38-virtual
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root (hd0)
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kernel /boot/vmlinuz-3.2.0-38-virtual root=/dev/xvda1 ro quiet splash console=hvc0
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initrd /boot/initrd.img-3.2.0-38-virtual
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title Ubuntu 12.04.2 LTS, kernel 3.2.0-38-virtual (recovery mode)
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root (hd0)
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kernel /boot/vmlinuz-3.2.0-38-virtual root=/dev/xvda1 ro quiet splash single
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initrd /boot/initrd.img-3.2.0-38-virtual
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Reboot server (either via command line or console)
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.. code-block:: bash
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# reboot
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Verify the kernel was updated
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.. code-block:: bash
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uname -a
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# Linux docker-12-04 3.8.0-19-generic #30~precise1-Ubuntu SMP Wed May 1 22:26:36 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
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# nice! 3.8.
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Now you can finish with the :ref:`ubuntu_linux` instructions. |