It means that every once in while you will have a looooooooong boot up. 
A suggestion:

for most questions look through 
http://lists.plug.phoenix.az.us/pipermail/plug-discuss/ before asking 
the list.

Michael Havens wrote:

> Yipeeeeeeeeee! I got knoppix going with a little help from /Rob. Now, does
> anyone remember what we did to get the modem going?
> 
> One further point of question. Durring the install process it said "... this
> filesystem will be automatically checked after X mounts." What do they mean
> here?
> 
> 
> ---------------------------------------------------
> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us
> To subscribe, unsubscribe, or to change  you mail settings:
> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss