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2.7 KiB
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98 lines
2.7 KiB
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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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Rackspace Cloud
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===============
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.. include:: install_unofficial.inc
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Installing Docker on Ubuntu provided by Rackspace is pretty
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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
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you will need to install it. And this is a little more difficult on
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Rackspace.
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Rackspace boots their servers using grub's ``menu.lst`` and does not
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like non 'virtual' packages (e.g. Xen compatible) kernels there,
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although they do work. This results in ``update-grub`` not having the
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expected result, and you will need to 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 the kernel installed in ``/boot/``, next you need to make it
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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
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section at the bottom with the existing options. Copy the top one and
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substitute the new kernel into that. Make sure the new kernel is on
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top, and double check the kernel and initrd lines point to the right files.
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Take 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 the 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.
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