make installworld fails

[lars at gmx.at]

Erik Trulsson wrote:
>> Is /usr/src/UPDATING synonymous to 'the correct updating procedure'?
> 
> Yes, /usr/src/UPDATING does describe the correct updating procedure.
> If you follow that procedure you should not have any problems with missing
> groups.
> Look under COMMON ITEMS at the end of /usr/src/UPDATING.
Right, thanks.

>> And finally, is it really necessary to reboot after 'mergemaster -p'?
>> Lately I've skipped that step with no adverse side-effects, saves me one 
>> reboot :-)
> 
> It is sometimes necessary to reboot with the new kernel to have 
> 'make installworld' work correctly (and the recommended procedure is to
> reboot into single user mode *before* running 'mergemaster -p' (which in
> turn is to be done before 'make installworld').
Correct, I forgot since I hadn't been doing it in a while
(so much for reading the handbook...).

But how do I know when it's necessary?
Or should I just reboot twice no matter what?

Thanks,
Lars.