1.173.1. RHBA-2010:0509: bug fix update
An updated yum-utils package that fixes a bug in yum-complete-transaction that could, potentially, render a system inoperable, is now available.
yum-utils is a collection of utilities and examples for the yum package manager. It includes utilities by different authors that make yum easier and more powerful to use.
These updated yum-utils packages fix the following bug:
* the yum-complete-transaction utility finds incomplete or aborted yum transactions on a system and then attempts to complete them. Following dependency analysis, yum-complete-transaction could, in some circumstances, mark essential system packages for removal. If the operation was continued, resulting in the removal of said packages, it was entirely possible to make the system inoperable as a result.
With this update, yum-complete-transaction analyzes the list of packages to be removed more thoroughly. If it finds the transaction size has changed (the precipitating state that caused essential system packages to be marked for removal) it aborts the operation and returns a "Transaction size changed" error with suggestions for further action. ( BZ#574389
All yum-utils users should upgrade to these updated packages, which resolve this issue.