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Date:      Sat, 19 Jan 2008 11:23:03 +0200
From:      Manolis Kiagias <sonicy@otenet.gr>
To:        Zbigniew Szalbot <zszalbot@gmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: going from 6.2 to 6.3 and custom kernel
Message-ID:  <4791C177.6030304@otenet.gr>
In-Reply-To: <94136a2c0801190114u46f872eas8f6afd5e52dd73b1@mail.gmail.com>
References:  <94136a2c0801181417w395f7532w4761fc76388ed60@mail.gmail.com>	<47912AE1.6000603@otenet.gr> <94136a2c0801190114u46f872eas8f6afd5e52dd73b1@mail.gmail.com>

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Zbigniew Szalbot wrote:
> Hello again,
>
>   
>>> How do I update the kernel manually then?
>>>
>>> Do I have to fetch the latest source and then follow the advice given here?
>>>
>>> http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-building.html
>>>
>>> Thanks!
>>>
>>> Zbigniew Szalbot
>>>
>>>
>>>       
>> It will not update your kernel, but if you do freebsd-update install you
>> will get an updated GENERIC kernel in /boot/GENERIC.
>>
>> This is what I did:
>>
>> freebsd-update -r 6.3-RELEASE upgrade
>>
>> (got the warning you mentioned)
>>
>> freebsd-update install
>>
>> Got a message about installing kernel updates. Got a new generic kernel
>> in /boot/GENERIC (check to see this exists!)
>>
>> Depending on whether you have console access to the machine or not:
>>
>> 1. If you don't have console access (you are doing this remotely), mv
>> /boot/kernel /boot/mykernel.old and mv /boot/GENERIC /boot/kernel and
>> reboot. This is because you can't (normally) interrupt the loader
>> remotely - unless someone does it for you. Continue from step 3.
>>
>> 2. If you are in front of the machine, reboot. Stop the boot sequence
>> when the boot loader comes up, and escape to loader prompt. Type:
>>
>>     unload
>>     load /boot/GENERIC/kernel
>>     boot
>>
>> 3. You are now running a 6.3-RELEASE kernel, albeit a GENERIC one. Run
>> freebsd-update install again to install the rest of the system.
>>
>> 4. Recompile your custom kernel the usual way, i.e.
>>     
>
> I do have to fetch the latest sources before building a custom kernel, don't I?
>
>   
>>     make buildkernel KERNCONF=MYKERNEL
>>     make installkernel KERNCONF=MYKERNEL
>>     reboot
>>
>> 5. You are done!
>>     
>
> Thanks!
>
> Zbigniew Szalbot
>
>   
Assuming you had the sources for 6.2 installed (how else could  you had 
compiled a custom kernel anyway?), freebsd-update will also update your 
sources (look at freebsd-update.conf and you will realize it 
immediately). Just go ahead and compile your new custom kernel!

Manolis



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