Red Hat ENTERPRISE LINUX 5.5 - S 2010, Руководство пользователя

Страница: 14 / 470

Chapter 1. Package Updates
4
even when this information is unavailable. Graphical installation on machines attached to KVM
switches therefore continues as if them monitor were connected directly to the graphics adapter.
(
BZ#445486
13
)
• previously,
anaconda
expected storage devices to be available immediately when it probed for the
location of a kickstart file. On systems where USB storage might not be available immedately (for
example, IBM BladeCenter systems),
anaconda
would not find the kickstart file and would prompt
the user for its location. This interaction negated the usefulness of kickstart, since the installation
could not then complete unattended.
Anaconda
now waits until it has probed five times or for
more than 31 seconds before prompting the user for the location of a kickstart file. This allows USB
storage enough time to respond and for kickstart to proceed unattended. (
BZ#460566
14
)
• previously, some user interface elements in the the Malayalam translation of
anaconda
overlapped.
The overlapping elements disabled some buttons in the screen where
anaconda
lets users to
choose a partitioning scheme for the system, and prevented installation from continuing. The text
of the Malayalam translation has been shortened so that the interface elements no longer overlap.
The buttons on the partitioning scheme screen now work correctly and allow installation to continue.
(
BZ#479353
15
)
• during installation,
anaconda
automatically examines any storage device that has the label
OEMDRV
for driver updates and applies any updates that it finds there. Previously,
anaconda
searched
for this label on the devices listed in
/proc/partitions
. However,
/proc/partitions
does
not identify CD or DVD media, so
anaconda
overlooked optical disks that had the correct label.
Anaconda
now examines the devices listed in
/sys/block
. Therefore,
anaconda
correctly
identifies CDs and DVDs labelled
OEMDRV
as driver discs and automatically applies any driver
updates contained on them. (
BZ#485060
16
)
• previously, if
anaconda
required network access early in an installation (for example, to retrieve a
kickstart file or driver disk image), it temporarily saved information about the network configuration
while it enabled access to the network. However, if
anaconda
required network access again for
a separate reason, it would not attempt to configure network access again, but would not be able
to connect to the network either, because it no longer retained the configuration information that it
had already used. Therefore,
anaconda
could not download both a kickstart file and a driver disk
image over a network.
Anaconda
now retains the network configuration that it obtains early in the
installation process, and can reuse this information multiple times. Therefore,
anaconda
can use
more than one resource obtained over a network during installation. (
BZ#495042
17
)
• previously, while upgrading a system,
anaconda
did not check whether packages marked for
installation as dependencies were already installed on the system. Consequently, many packages
would be reinstalled during an upgrade, wasting time and, in the case of network installations,
bandwidth. Now, when performing an upgrade,
anaconda
matches the packages to be installed
against the packages that are already installed. Any packages with the same
Name, Arch, Epoch,
Version, Release
(NAEVR) as a package already on the system are skipped and not reinstalled.
(
BZ#495796
18
)
• previously,
anaconda
did not specify a value for
HOTPLUG
when writing the system's networking
configuration files, although it did write a value for
ONBOOT
. Because
HOTPLUG
is enabled by
default, the effect of disabling
ONBOOT
was limited because any interface not activated at boot
time would be enabled anyway whenever probed by the system.
Anaconda
now writes a value for
HOTPLUG
, setting it to the same value as
ONBOOT
. Therefore, any network interface not meant to be
enabled at boot time will not be automatically enabled by probing either. (
BZ#498086
19
)