sudo and su stopped working??

[Mike Adolf]

Mark Haney wrote:
> Mike Adolf wrote:
>   
>> Don't have any idea why or how to fix it, but suddenly sudo and su both 
>> give "authentication failed" error.  System/Root Terminal still works 
>> and User/Groups still shows I have admin privileges. I am using 8.10 and 
>> ran a security update this morning.
>>
>> Mike
>>
>>     
>
> The only time I've seen this happen before is with a glibc update
> breaking it.  I would start there. SOmetimes re-installing glibc fixes that.
>
>
>   
I have no glibc! synaptic shows glibc source. Apt-get can not find glibc.

I have all the std repositories - and then some.

Mike