SCI-CD

h1. INSTALL

{{toc}}

h2. Get ISO image

You can get built ISO from here:

Otherwise you can build your own iso (for experienced users): [[BUILD-ISO]]

h2. Burn ISO image

Image will be built in @images/@ folder, burn it with your favorite tool

(for ex. - k3b).

h2. Install the system

Install the system on two nodes (you may use only one node, but high

availability capabilities will be unavailable).

You must to know following data at this time:

* The number and mask of local network

* The IP addresses of two installed nodes (in the same network)

* The internet router's address (in the same network, if any)

* The cluster's domain name

* The hostnames for new nodes

* The address of the future DNS server, which will be installed on the

cluster service instance.

* The root's password

* The idea on how to create storage system - to use MD or hardware raid

or no raid at all - on your own choice.

h3. Partitioning

You should preserve following partitions on your nodes:

|_.Name|_.Size|_.Purpose|

|/|10G|Root partition for all node's data|

|swap|1G|Swap space for Dom0 in calculation of 512Mb RAM|

|xenvg|the rest|The LVM Volume, named 'xenvg', without any partitions|

xenvg will be used as the default place for instance's volumes.

You may create more partition or volume groups at your choice.

If you want to add some system partitions on xenvg, you must then exclude it from ganeti volumes(SEE [[SETUP]]).

h3. DNS server's address

The cluster has it's own DNS server, which is also the 'approx' and

'puppet' server. At the [[SETUP]] stage, cluster DNS server can be linked

to other DNS servers in the forwarding mode.

The server's address +must not+ be the address of the existing service.

The cluster's domain name must not be the name of the existing domain if

local domain already exists (use subdomain, or completely different name).

h2. Automatic post-installation changes

During the installation phase, the postinst.sh script from the distro

made the following system tuning: [[POST-INSTALL]] 

h2. The cluster is ready to setup

The CD installation takes about 15 minutes per node.

Read [[SETUP]] next.