RHBA-2014:1396 - Bug Fix Advisory

Topic

An updated redhat-upgrade-tool package that fixes several bugs is now available for Red Hat Enterprise Linux 6.

Description

The Red Hat Upgrade Tool is used for performing an in-place upgrade of your
current system to the next major version of Red Hat Enterprise Linux. It
determines what packages are needed for the upgrade and gathers them from the
source or sources given. It also fetches and sets up the boot images needed to
run the upgrade and sets up the system to perform the upgrade on the next system
boot. Running the Red Hat Upgrade Tool requires running the Preupgrade Assistant
as a prerequisite.

This update fixes the following bugs:

• Previously, the Red Hat Subscription Management (RHSM) repository setup did

not correctly specify the appropriate URLs. As a consequence,
preupgrade-assistant postupgrade scripts could not use the Yum utility, and an
error message was displayed. With this update, the "skip_if_unavailable" option
has been set to "True" for all generated repository files, and the errors no
longer occur. (BZ#1106401)

• Previously, using the "--addrepo" option with an incorrect argument returned a

confusing error message that no upgrade was available from the repository. As a
consequence, it was not clear whether the specified URL was incorrect or there
was no upgrade available from the repository. This update improves the error
message which now suggests checking if the specified URL is correct.
(BZ#1084985)

• After an upgrade, when one of the postupgrade scripts attempted to downgrade

several packages, downgrade failed because of errors downloading the GPG keys.
This bug has been fixed by specifying that the postupgrade scripts use the same
GPG keys as the Red Hat Upgrade Tool. As a result, postupgrade scripts downgrade
the selected packages successfully. (BZ#1115532)

• Previously, the Red Hat Upgrade Tool did not perform a check whether the

repositories the system is being upgraded to are signed by Red Hat. This update
adds a check to the Red Hat Upgrade Tool which checks the repository signatures
and fails the upgrade if the packages are not signed by Red Hat. (BZ#1123915)

• Previously, running the redhat-upgrade-tool command with the "--clean" option

could fail because the Red Hat Upgrade Tool did not check for the existence of
the /var/lib/systemd file. This bug has been fixed and the "redhat-upgrade-tool

• -clean" command now executes successfully. (BZ#1128162)
• Previously, after an upgrade, the Red Hat Upgrade Tool did not disable the Yum

repositories for the old system. This bug has been fixed and now Red Hat Upgrade
Tool correctly disables all old repositories excluding the
/etc/yum.repos.d/redhat-upgrade-* repositories. (BZ#1130686)

• Previously, certain packages handled by the Preupgrade Assistant utility and

consequently by the Red Hat Upgrade Tool had broken upgrade paths. As a
consequence, these packages were not upgraded during system assessment. This
update fixes the upgrade paths and the correct files are now downloaded and
installed by both tools. (BZ#1138615)

• Previously, when performing an upgrade over the network, if there was a

network timeout error when downloading the .treeinfo file, the Red Hat Upgrade
Tool exited with a traceback error. After this update, if there is a network
timeout, the Red Hat Upgrade Tool returns a "Downloading failed" error and does
not produce a traceback error. (BZ#1076120)

Users of redhat-upgrade-tool are advised to upgrade to this updated package,
which fixes these bugs.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386

Fixes

• BZ - 1084985 - confusing error message on --addrepo failure
• BZ - 1115532 - redhat-upgrade-tool does not import RHEL-7 repo keys
• BZ - 1128162 - missing checking of /var/lib/system-upgrade with --clean option

CVEs

• CVE-2014-3585

References

(none)