biolocal:Diskless

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Create a new diskless OS

Preparing the NFS server

On 143.225.151.72 (storagesrv2) there are 2 LUNs available for diskless OSes:

/dev/emcpowerk for os roots /dev/emcpowerl for snapshots

Create filesystems:

mkdir -t ext3 /dev/emcpowerk{partition_number} mkdir -t ext3 /dev/emcpowerl{partition_number}

and run the command:

/root/config_os_partitions.sh oslabel dev_for_root dev_for_snapshots ex: /root/config_os_partitions.sh centos5sge /dev/emcpowerk7 /dev/emcpowerl7

It makes the directories 

/diskless/i386/$oslabel/root
/diskless/i386/$oslabel/snapshot

and mount the devices on them.


Create the OS

Rsync the installed os from an existing disk to /diskless/i386/$oslabel/root

Export the root and snapshot directories to a new network. 

echo "/diskless/i386/centos5sge/root  192.168.151.43(rw,sync,no_root_squash)" >> /etc/exports
echo "/diskless/i386/centos5sge/root 192.168.129.0/24(ro,sync,no_root_squash)" >> /etc/exports
echo "/diskless/i386/centos5sge/snapshot     192.168.129.0/18(rw,sync,no_root_squash)" >> /etc/exports
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