Rebuilding, Got Questions

Lowell Gilbert freebsd-questions-local at
Wed Aug 16 12:42:38 UTC 2006

Danny Pansters <danny at> writes:

>> cd /usr/src
>> make -j4 buildworld // single CPU system
>> make buildkernel
>> make installkernel
>> reboot
> I wouldn't do this, because after reboot your kernel and userland are sure to 
> be out of sync and that may cause problems preventing you from fully 
> (multi-user) booting. Or what if the rc scripts have changed (but not 
> installed yet) and your NIC doesn't come up because of that...

It is the recommended procedure.

Note that there is no way to avoid having userland and kernel out of
synch temporarily during the update.  More important, in general, is
making sure that the new system kernel is capable of booting before
you go ahead and replace the rest of the base system.

Lowell Gilbert, embedded/networking software engineer, Boston area

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