uninstalling problematic rpms

if you're unable to uninstall an rpm using yum erase/remove or rpm -e because something in the rpm's uninstallation process is broken, try using rpm -e with the --noscripts --notriggers flags:

$ sudo rpm -e sblim-sfcb
/var/tmp/rpm-tmp.54035: line 7: /etc/init.d/sfcb: No such file or directory
error: %preun(sblim-sfcb-1.3.11-0.7.14.x86_64) scriptlet failed, exit status 127
$ sudo yum remove sblim-sfcb
...
Running Transaction
/var/tmp/rpm-tmp.49575: line 7: /etc/init.d/sfcb: No such file or directory

Removed:
sblim-sfcb.x86_64 0:1.3.11-0.7.14

Complete!
$ rpm -qa sblim-sfcb
sblim-sfcb-1.3.11-0.7.14
$ sudo rpm -e sblim-sfcb --noscripts --notriggers
$ rpm -qa sblim-sfcb
$