Lustre 1.6 Operations Manual

For example, the lustre/kernel_patches/series/rh-2.4.20 file lists all
patches that should be applied to the Red Hat 2.4.20 kernel to build a Lustrecompatible
kernel.
The current set of all the supported kernels and their corresponding patch series can
be found in the lustre/kernel_patches/which_patch file.
4.3.1.2 Installing Quilt
A variety of Quilt packages (RPMs, SRPMs and tarballs) are available from various
sources. We recommend that you use a recent version of Quilt. If possible, use a
Quilt package from your distribution vendor.
If you cannot find an appropriate Quilt package or fulfill its dependencies, we
suggest that you build Quilt from the tarball. You can download the tarball from the
main Quilt website:
http://savannah.nongnu.org/projects/quilt
Note – The latest Lustre release works with the latest Linux kernel distribution. If
you use the pre-patched kernel from an older Lustre release or the kernel patches
against a different kernel, you can build a more recent Lustre release against it.
4.3.1.3 Preparing the Kernel Tree Using Quilt
To prepare the kernel tree to use Quilt:
1. After acquiring the Lustre source (CVS or tarball) and choosing a series file to
match your kernel sources, choose a kernel config file.
The lustre/kernel_patches/kernel_configs folder contains supported
.config files, which are named to indicate which kernel and architecture with
which they are associated. For example, the configuration file for the 2.6.9 kernel
shipped with RHEL 4 (suitable for x86_64 SMP systems) is:
kernel-2.6.9-2.6-rhel4-x86_64-smp.config
2. Unpack the appropriate kernel source tree.
This manual assumes that the resulting source tree (referred to as the destination
tree) is in /tmp/kernels/linux-2.6.9
You are ready to use Quilt to manage the patching process for your kernel.
3. Perform the following commands to set up the necessary symlinks between the
Lustre kernel patches and your kernel sources (assuming the Lustre sources are
unpacked under /tmp/lustre-1.4.7.3 and you have chosen the 2.6-rhel4 series):
4-16 Lustre 1.6 Operations Manual • September 2008