Big problem with an update

[Bruno Wolff III]

On Fri, May 24, 2013 at 23:39:17 -0400,
   Frank McCormick <beacon at videotron.ca> wrote:
>On 05/24/2013 11:08 PM, Christopher Meng wrote:
>>Tell us your "yum history"
>>
>
>
>    Too late Christopher - found "package-cleanup --dupes" in the 
>Fedora forums (and a suggestion
>from another user on the regular list) - so I tried it - now the 19 
>partition is unbootable :) So
>it sort of solved my problem. Package cleanup ran into a bunch of 
>what it said were zero-length files..dunno what it
>did or didn't do with them..nothing I guess. But it appears some . 
>many  or all were essential.

You need to be careful about using cleandupes. After a partially completed 
transaction you might end up removing extra stuff. Generally you want 
to start with yum-complete-transaction.