Stuck

[Rem P Roberti]

>>> Rem Roberti writes:
>>>
>>>>   This is a new one for me.  I decided to do a manual update on my
>>>>   8.1 box, starting with csup.  Buildworld went fine, as did
>>>>   buildkernel.  However, when I tried to install the new kernel
>>>>   installkernel choked with an error message telling me that it
>>>>   could not proceed because the root partition was full.  What!  I
>>>>   did a df and sure enough the root partition was overloaded.  When
>>>>   I installed the system I used sysinstalls recommended sizes for
>>>>   the root partion, which is around 10G.  Anyway, when I rebooted,
>>>>   the system rebooted into single user mode, and that is presently
>>>>   where I stand.  I have no idea how to proceed at this point, and
>>>>   would appreciate any help in fixing this.  Of course, I smell a
>>>>   newbie type error in all of this, but haven't quite figured out
>>>>   where I went wrong.
>>>         Start with this:
>>>
>>>         du -x / | sort -nr | head -n 30
>>>
>>>         This will give you the largest directories; if any of them
>>> don't look right - investigate further.
>>>         (For comparison: the root directory on this machine is 2
>>> gbytes, of which I use 1.1.  10 gbytes is a lot of space
>> I completely misspoke, having confused the hard drive in question with
>> another box. This drive is a 40G drive, of which 500MB was allotted for
>> root.  When I ran your command I noticed the /boot/kernel.old was very
>> large, so I moved the whole thing over to my home directory, which finally
>> allowed me to boot the computer normally.  This was an intuitive move, and
>> probably not that kosher, but it worked.  But where do we go from here?
>>
> Remove all the *.symbols files (if you're not going
> to be debugging).
>
> Build with "makeoptions DEBUG=-g" commented out
> of your kernel config.
>
> (my root filesystem has 70M used. On amd64, no less)
>

Getting rid of all those .symbols files made a big difference.  Where do 
I locate the kernel config file?

Rem