Installation guide

Stateless Linux is a new way of thinking about how a system should be run and managed,
designed to simplify provisioning and management of large numbers of systems by making
them easily replaceable. T his is accomplished primarily by establishing prepared system
images which get replicated and managed across a large number of stateless systems, running
the operating system in a read-only manner (refer to /etc/sysconfig/readonly-root for
more details).
In its current state of development, the Stateless features are subsets of the intended goals. As
such, the capability remains as T echnology Preview.
Red Hat recommends that those interested in testing stateless code read the HOWTO at
http://fedoraproject.org/wiki/StatelessLinux/HOWT O and join [e-mail].
The enabling infrastructure pieces for Stateless Linux were originally introduced in Red Hat
Enterprise Linux 5.
AIGLX
AIGLX is a T echnology Preview feature of the otherwise fully supported X server. It aims to
enable GL-accelerated effects on a standard desktop. The project consists of the following:
A lightly modified X server.
An updated Mesa package that adds new protocol support.
By installing these components, you can have GL-accelerated effects on your desktop with very
few changes, as well as the ability to enable and disable them at will without replacing your X
server. AIGLX also enables remote GLX applications to take advantage of hardware GLX
acceleration.
FireWire
The firewire-sbp2 module is still included in this update as a T echnology Preview. This
module enables connectivity with FireWire storage devices and scanners.
At present, FireWire does not support the following:
IPv4
pcilynx host controllers
multi-LUN storage devices
non-exclusive access to storage devices
In addition, the following issues still exist in FireWire:
a memory leak in the SBP2 driver may cause the machine to become unresponsive.
a code in this version does not work properly in big-endian machines. T his could lead to
unexpected behavior in PowerPC.
kt une
This release includes ktune (from the ktune package), a service that sets several kernel
tuning parameters to values suitable for specific system profiles. Currently, ktune only
provides a profile for large-memory systems running disk-intensive and network-intensive
applications.
The settings provides by ktune do not override those set in /etc/sysctl.conf or through
7. Technology Previews
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