freebsd-update and more information

Manolis Kiagias sonic2000gr at
Mon Jun 30 13:58:11 UTC 2008

Paul Schmehl wrote:
> --On June 30, 2008 2:22:41 PM +0200 Zbigniew Szalbot 
> <z.szalbot at> wrote:
>> Dear all,
>> I read man freebsd-update but it has not answered my questions. That is,
>> after I have issued freebsd-update fetch/install, where can I find
>> information about if the installed updates require recompiling the
>> kernel or system restart?
>> Thank you in advance!
> Maybe I'm confused, but I thought freebsd-update installed precompiled 
> binaries of the generic kernel and world.

True, but it also updates the relevant sources if installed (as another 
poster said, freebsd-update will only update what you have installed - I 
tend to always assume that everybody installs full sources, but that's 
just me)

> Therefore, you would need to reboot if the kernel changed.  
> Freebsd-update should tell you what will be changed after it finishes 
> the fetch.  I don't recall if it also tells you what it installed.

If it tells you it updated /boot/kernel/kernel, you should reboot. If 
you are running a custom kernel and you see files getting updated in 
/usr/src/sys (mind you, not just the /usr/src/sys/conf/, but 
other files too - is always updated to reflect the new -p# in 
uname, if you rebuild your kernel) you should rebuild your custom kernel 
and reboot.

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