how do i know i need a reboot after a console based "upgrade"?

[Gabriel Dragffy]

Mario Vukelic wrote:
> On Tue, 2007-04-17 at 15:33 +0100, Gabriel Dragffy wrote:
>> if you do 'upgrade' then you shouldn't need to restart for the 
>> changes to take effect. If you do a 'dist-upgrade' then generally you 
>> will need to restart for the changes to take effect. 
> 
> No, the difference between upgrade and dist-upgrade is just that upgrade
> will never uninstall packages to resolve dependencies, while
> dist-upgrade will. See "man apt-get" or "man aptitude"
> 
> 
I see.
It's just been my experience that 'upgrade' will install packages and 
not require a restart. But the few packages that do require a restart, 
e.g. kernel updates, will only be installed when the command 
'dist-upgrade' is issued.