Red Hat ENTERPRISE 5.4 RELEASE NOTES, Manual

Page: 294 / 466

Chapter 2. New Packages
276
Etherboot
provides the capability to boot guest virtual machines using the Preboot eXecution
Environment (PXE). This process occurs before the operating system is loaded; in most cases, the
operating system has no knowledge that it was booted through PXE. Many network adapters contain a
socket where a ROM chip can be installed; this ROM chip is used to store PXE-boot code provided by
Etherboot
. At present,
Etherboot
is only supported for use in KVM. (
BZ#488612
2
)
This version of Etherboot was compiled with the
POWERSAVE
,
PXE_DHCP_STRICT
, and
ASK_BOOT=-1
options.
PXE_DHCP_STRICT
is required by some network drivers to support PXE-
booting, while the
ASK_BOOT=-1
option prevents a guest from consuming too much CPU time during
boot-up. The
POWERSAVE
option reduces CPU consumption on a host whenever a guest performs a
PXE-boot. (
BZ#481914
3
and (
BZ#500894
4
)
2.5. RHEA-2009:1318: fcoe-utils
A new
fcoe-utils
package is now available for Red Hat Enterprise Linux 5.
The
fcoe-utils
package contains the
fcoeadm
command line utility, which is the Fibre Channel-over-
Ethernet (FCoE) management tool for Linux systems. The fcoeadm utility can create, destroy and
reset an FCoE instance on a given network interface, as well as retrieve and display information about
FCoE instances.
This
fcoe-utils
package is new to Red Hat Enterprise Linux 5. (
BZ#494555
5
)
All Fibre Channel-over-Ethernet users requiring an administrative FCoE interface should install this
newly-released package, which adds this enhancement.
2.6. RHEA-2009:1320: fuse
fuse
, a new package that enables users to mount FUSE file systems, is now available.
FUSE (Filesystem in Userspace) is an interface for userspace programs to export a virtual file system
to the Linux kernel. FUSE also aims to provide a secure method for non-privileged users to create and
mount their own file system implementations.
FUSE, which can implement a fully functional file system in a userspace program, consists of three
main parts: a kernel filesystem module; a userspace library; and a mount utility. This package contains
the mount utility, fusermount; the FUSE userspace tool to mount FUSE file systems.
BZ#252372
6
)
Note
FUSE has no relationship with the ZX Spectrum emulator also known as Fuse.
Anyone looking to mount FUSE file systems or otherwise use FUSE should install this new package.
2
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=488612
3
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=481914
4
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=500894
5
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=494555
6
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=252372