Walk-thru- Building Lustre 1.8 from Whamcloud git

Purpose

Describe the steps you need to build and test a 1.8 Lustre system (MGS, MDT, MDS, OSS, OST, client) on a CentOS 5 Toro machine.

Prerequisite

Account on Toro
Reservations on the nodes: client-10, client-11, client-12
CentOS 5 provisioned on client-10 using loadhudsonbuild.rb

Overview

Lustre 1.8 servers require a patched and compiled kernel. Patches are readily available in the Whamcloud git source repository. The test suite is included with the Lustre 1.8 source.

Procedure

The procedure requires that a OS is setup for development - this includes Lustre source and kernel headers. Once setup, a new kernel can be patched, compiled, run and tested. Building a RPM based kernel is described in detail on the Lustre.org wiki.

Provision Machine

Once CentOS5.5 is provisioned on client-10 login as root.

Get git installed. A simple way to do this is by installing the EPEL repository:

rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm
yum install git

Get the 1.8 branch from the Whamcloud git account.

git clone git://git.whamcloud.com/fs/lustre-release.git
git checkout --track -b haml origin/haml

cd into lustre-release and run sh ./autogen.sh

Resolve the outstanding dependencies until autogen.sh completes successfully. Success will look like:

[root@client-10 lustre-release]# sh ./autogen.sh 
Checking for a complete tree...
checking for automake-1.9 >= 1.9... found 1.9.6
...
Running automake-1.9...
Running autoconf...
[root@client-10 lustre-release]#

Prepeare the kernel

This section of the walk-thru is taken from http://wiki.centos.org/HowTos/Custom_Kernel

Install development tools: yum groupinstall "Development Tools"

Get the kernel source. First create the directory structure, then get the source from the RPM.

cd
mkdir -p kernel/rpmbuild/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
cd kernel
rpm -i http://mirror.centos.org/centos/5/updates/SRPMS/kernel-2.6.18-194.32.1.el5.src.rpm 2>&1 | grep -v mockb

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