[Yum] "identical dependency loop exceeded"

[seth vidal]

>   i have no idea from where came dbus-qt, which raises a number
> of questions:
> 
> 1) is this an oversight on the part of the repository?  or did
>    someone manually add the dbus-qt RPM to this local system
>    which is messing up the yum update?

dbus-qt was removed from 0.95 w/o being obsoleted. 

yum remove dbus-qt
yum update.

> 
> 2) can i assume that, if any kind of update problem is detected,
>    nothing will be done to the local system and the entire
>    update will be abandoned?

yes. an update must entirely complete the depcheck

> 
> 3) does yum have some sort of "--test" or "--dry-run" option?
>    the man page makes no mention of such a feature.

it does not.

-sv