Red Hat ENTERPRISE LINUX 5.5 - S 2010, Manual

Page: 16 / 470

Chapter 1. Package Updates
6
to install on an iSCSI target specified by in IPv6 address. The logic by which
anaconda
parses
IP addresses has now been corrected, but now requires IPv6 addresses to be specified in the
[ address ]: port
form to comply with the relevant RFCs. This form removes ambiguity, since IPv6
addresses are still valid if they omit a sequence of bytes with zero values. When IPv6 addresses
are specified in this format,
anaconda
parses them correctly and installation continues as normal.
(
BZ#525054
27
)
• comments in kickstart files are marked with a pound symbol (
#
) at the start of the line. However,
anaconda
did not previously account for the possibility that users might mark a comment with
multiple pound symbols (for example,
#####
).
Anaconda
would therefore attempt to parse lines
that started with multiple pound symbols and installation would fail.
Anaconda
now recognizes lines
that start with multiple pound symbols as comments and does not attempt to parse them. Users can
now safely mark comments in kickstart files in this way. (
BZ#525676
28
)
• to avoid a circular dependency that exists between the
ghostscript
and
ghostscript-fonts
packages,
anaconda
ignored
ghostscript
's dependency on
ghostscript-fonts
. However,
ghostscript-fonts
was not explicitly installed as part of the
Printing
package group. The usefulness of
Ghostscript
as installed by
anaconda
was therefore limited.
Anaconda
still avoids the circular dependency,
but now specifically installs
ghostscript-fonts
when users select the
Printing
package group.
(
BZ#530548
29
)
• previously,
anaconda
did not automatically instruct the kernel to check for multipath devices when
installing on IBM System z systems. Therefore, unless users booted with the
mpath
boot option,
iSCSI devices detected on more than one path would be represented in the installer multiple
times, one for each path.
Anaconda
now automatically loads the
mpath
boot option and therefore
represents multipath devices correctly. (
BZ#538129
30
)
• Dell PowerEdge servers equipped with the SAS6i/R integrated RAID controller use
BIOS Enhanced
Disk Drive Services
(EDD) to identify the storage device from which to boot the operating system.
Previously,
anaconda
did not parse EDD to identify the correct boot device. Consequently, with a
RAID 0 and RAID 1 configured on the system,
anaconda
would choose the wrong device and the
system would not be bootable.
Anaconda
now parses EDD to support the SAS6i/R integrated RAID
controller, so that it selects the correct boot device for systems that use this device. (
BZ#540637
31
)
• previously,
anaconda
would always attempt to reconstruct pre-existing
Logical Volume
Management
(LVM) devices during installation.
Anaconda
would attempt to recreate the LVM
device even when a user cleared the LVM partitions from one or more of the disks that held
partitions that formed part of a volume group. In this case, installation would fail. Now,
anaconda
no longer attempts to reconstruct incomplete LVM devices. Users can therefore safely re-
allocate storage that was once part of a volume group and installation will proceed as expected.
(
BZ#545869
32
)
• when
ksdevice=link
is set in a kickstart file,
anaconda
should automatically select the first
available network interface and use it during installation. This avoids the need for user input and
allows installation to proceed unattended. However, if interfaces were in a state where
anaconda
could not determine their status,
anaconda
would revert to interactive more and prompt the user
to select a network interface, thus making unattended installation impossible on systems where
network interfaces could be in such a state.
Anaconda
now forces the network interfaces on the
system into
IFF_UP
and
IFF_RUNNING
states before it attempts to obtain link status. Because
the interfaces are now in a state where they can report their link status to
anaconda
,
Anaconda
can automatically choose one to use during installation and kickstart installations can proceed
unattended. (
BZ#549751
33
)