Updated plymouth packages that fix two bugs are now available for Red Hat Enterprise Linux 6.
Plymouth provides a graphical boot animation in place of the text messages that are normally displayed. Text messages are instead redirected to a log file for viewing after boot.
Previously, plymouth incorrectly parsed "console" parameters that were set to "tty0" on the kernel command line. When the user had connected the serial port from another machine and rebooted the system, the boot log was not redirected to the serial console and the user could not view it as a consequence. A patch has been applied to address the issue so that users can now view the output of the boot log.
Previously, plymouth did not perform proper tty clean up on some consoles if more than one line contained the "console=" parameter. The terminal was locked as a consequence and the user was not able to log in from the serial console. With this update, plymouth is modified to correctly handle multiple lines containing "console=" and users are now able to log in as expected.
All users of plymouth are advised to upgrade to these updated packages, which fix these bugs.