Today I attempted to upgrade my F18 system to the latest pre-F19 snapshot. I used the "yum distro-sync" apprach. About 10% into the yum transaction, it stopped, and it looks like it stopped because of a crash in policycoreutils. I have a full directory, as created by abrt, if you want it, let me know. A few pieces from it: cmdline: /usr/bin/python -Es /usr/sbin/semanage fcontext -a -t textrel_shlib_t /usr/lib/libffmpegsumo.so.0.0.0 core_backtrace: 20a7b88131f2524123d1ac100683751417db4970 0x16 swig_import_helper /usr/lib64/python2.7/site-packages/selinux/__init__.py - 20a7b88131f2524123d1ac100683751417db4970 0x1a <module> /usr/lib64/python2.7/site-packages/selinux/__init__.py - 7901cf021cb461f86a9d7de470955d1f63ff89bb 0x18 <module> /usr/lib64/python2.7/site-packages/seobject.py - f73c90a461c3223987d4be75eaa962e0112f7809 0x19 <module> /usr/sbin/semanage - Note, this system had selinux disabled.
I have no idea why this would block the update. I think it is probably a red herring. The tools that is shipping libffmpegsumo.so.0.0.0 is not checking if SElinux is enabled which is potentially causing the error. I would report a bug to them. This command blowing up in a post install would not stop the update.