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====== Setting up an Ubuntu Installation to work with AOE ====== First make sure you have a server with some aoe server software installed. If you use Linux as a server, get and install the "vblade" package. On the client side, install a standard Ubuntu Desktop on a physical or virtual machine. If you use a virtual machine, make the sure disk image is in 'raw' format, meaning no headers or such on the image. If it is a valid raw image, you should be able to see the partition table with, for example "fdisk -l disk.img" or even the "disktype" command, like so: <code> $ disktype disk.img --- disk.img Regular file, size 6 GiB (6442450944 bytes) DOS/MBR partition map Partition 1: 5.858 GiB (6290407424 bytes, 12285952 sectors from 2048, bootable) Type 0x83 (Linux) Ext3 file system UUID 745D45C4-38FA-4B7C-85A3-71D37AE23AF3 (DCE, v4) Volume size 5.858 GiB (6290407424 bytes, 1535744 blocks of 4 KiB) Partition 2: 144 MiB (150994944 bytes, 294912 sectors from 12288000) Type 0x82 (Linux swap / Solaris) Linux swap, version 2, subversion 1, 4 KiB pages, little-endian Swap size 144.0 MiB (150986752 bytes, 36862 pages of 4 KiB) </code> ===== Use the following steps to make the Ubuntu client aoe capable: ===== First, start the client and login, then start a terminal and become root: Applications -> Accessories -> Terminal == Paste the following code into a new file called /etc/initramfs-tools/scripts/local-top/aoe == <code> #!/bin/sh sleep 1 # Wait for network driver to load ip link set eth0 up # Activate the network interface sleep 3 # Wait for the network interface to become active echo 1 >/dev/etherd/discover # Start looking for aoe devices on the net </code> Then do these commands at the terminal: <code> sudo -s # Become root, if it asks for password, use the users password chmod +x /etc/initramfs-tools/scripts/local-top/aoe # Make your script executable apt-get install aoetools # Make sure you have the aoe tools installed echo aoe >>/etc/initramfs-tools/modules # Add the aoe module to the modules list of initramfs update-initramfs -u # Update initramfs with your changes, # the changes will also take effect even with upgrades </code> == Optional: Do the following if you want your eth0 interface to have the same name even if the image is booted on different machines == <code> sudo -s # Change to root access rm /etc/udev/rules.d/70-persistent-net.rules # Get rid of this rule so that your current eth0 interface doesn't get changed rm /lib/udev/rules.d/75-persistent-net-generator.rules # This re-creates the above, so get rid of it too </code> Note: I don't know if the above steps are the best way to make eth0 name static, but this is what works for me. ===== Last step: Transfer the image to the server ===== You could just copy the image as is, but it is even smarter to make a sparse file. That way only actual data is copied and not the empty sectors. You can do this under linux with the cp command: <code> cp --sparse=always disk.img /media/server-data/disk-images/disk.img </code> If you installed to a physical machine, boot up the machine with a live linux cd, become root and do this command: <code> cp --sparse=always /dev/sda /media/server-data/disk-images/disk.img </code> ===== Random Notes ===== - If you don't install any proprietary video drivers, then what you got here is an image that will boot from either AOE, USB, or any internal/external disk on any machine. - You cannot create sparse images if you copy to a windows or samba network share, use nfs/ssh/nc (netcat) instead. Here is an example with nc (netcat): Client side: <code> cat /dev/sda | nc -l -p 1234 </code> Server side: <code> nc <client-ip> 1234 | cp --sparse=always /dev/stdin disk.img </code> Created by --- //Quinn Plattel 2010/09/17 07:33//


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