[SOLVED] [VERY IMPORTANT] How to undo updates....

[Mark Neidorff <mark@neidorff.com>]

On Saturday 08 October 2011 11:12:44 am mark@neidorff.com wrote:
> Hi,
> 
> This morning synaptic reported some 32 packages to update.  So I updated
> the packages.  After the update I can no longer login (KDE) as myself.  I
> can login as myself in a terminal login.  I can also login as root under
> KDE (I understand the dangers).
> 
> Now I would like to undo the changes that were made by synaptic so that I
> can get back to a fully usable system.  How do I find the changed packages
> and undo the changes?
> 
> Thanks,
> 
> Mark

It is a permission problem.

#chmod 777 /var/tmp

solves the problem.  (whew!)

Mark

(and, yes it was very important!)