RHBA-2020:4057 - Bug Fix Advisory

Topic

An update for redhat-upgrade-tool, preupgrade-assistant, and preupgrade-assistant-el6toel7 is now available for Red Hat Enterprise Linux 6 Extras.

Description

The Red Hat Upgrade Tool is used for performing an in-place upgrade from Red Hat Enterprise Linux 6 to Red Hat Enterprise Linux 7. Running the Red Hat Upgrade Tool requires running the Preupgrade Assistant as a prerequisite.

The Preupgrade Assistant is a framework designed to run the Preupgrade Assistant modules, which analyze the system for possible in-place upgrade limitations.

The preupgrade-assistant-el6toel7 package provides a set of modules used
for the assessment of the source system for the upgrade or migration to the
Red Hat Enterprise Linux 7 system.

The redhat-upgrade-tool, preupgrade-assistant, and preupgrade-assistant-el6toel7 packages have been upgraded to later versions, which provide the following notable enhancements:

• The supported in-place upgrade path is from RHEL 6.10 to RHEL 7.9, with the exception of SAP HANA.
• In-place upgrade of UEFI-based RHEL installations is now supported
• The rollback functionality is available also for UEFI
• You can use custom repositories for an in-place upgrade

For detailed instructions on how to perform an in-place upgrade, see the Knowledgebase solution How do I upgrade from Red Hat Enterprise Linux 6 to Red Hat Enterprise Linux 7? linked from the References section.

For more details about the rollback functionality, see Red Hat Upgrade Tool - rollbacks and cleanup after upgrading RHEL 6 to RHEL 7.

For more information about upgrade paths, see Supported in-place upgrade paths for Red Hat Enterprise Linux.

Solution

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

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• 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

Fixes

• BZ - 1452030 - Prevent upgrade when a device is specified using "by-path"
• BZ - 1633894 - RHEL6_7/others/configchanges/check failed with syntax error
• BZ - 1644915 - xccdf_preupg_rule_system_initscripts_ifcfg_check doesn't handle /etc/sysconfig/network-scripts/route-eth*
• BZ - 1707913 - The assessment report from the Web UI shows preupgrade results with "failed" results as an "inplace upgrade risk: slight"
• BZ - 1804691 - preupg: all modules ends with 'notchecked' status as they are not processed
• BZ - 1816751 - redhat-upgrade-tool fails renaming the network interfaces
• BZ - 1851322 - xccdf_preupg_rule_system_SysconfigCgroupDaemon_check raises an exception when a dead symlink is found
• BZ - 1858822 - Broken rollbacks after the in-place upgrade for EFI boot
• BZ - 1859309 - Rebase to a new upstream version
• BZ - 1859310 - Rebase to a new upstream version

CVEs

(none)

References

• https://access.redhat.com/solutions/637583
• https://access.redhat.com/solutions/3534561
• https://access.redhat.com/articles/4263361