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Date:      Sun, 13 May 2007 18:19:53 +1000
From:      Sam Lawrance <boris@brooknet.com.au>
To:        Matthew Seaman <m.seaman@infracaninophile.co.uk>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Skipping "F1 FreeBSD" prompt on boot
Message-ID:  <9979A1FD-F329-4C64-B5D2-66399F731E87@brooknet.com.au>
In-Reply-To: <4646C922.7040902@infracaninophile.co.uk>
References:  <46458C63.8040600@landgren.net> <46459E20.5060108@infracaninophile.co.uk> <86C5378E-69FE-4A9F-9C77-C7970E42481F@brooknet.com.au> <4646C922.7040902@infracaninophile.co.uk>

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On 13/05/2007, at 6:15 PM, Matthew Seaman wrote:

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> Sam Lawrance wrote:
>>
>> On 12/05/2007, at 8:59 PM, Matthew Seaman wrote:
>>
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>>> David Landgren wrote:
>>>
>>>> I have a disk that has only FreeBSD on it, and so I would like  
>>>> to skip
>>>> the initial F1/FreeBSD prompt. boot0cfg -v ad0 says:
>>>>
>>>> options=nopacket,update,nosetdrv
>>>> default_selection=F1 (Slice 1)
>>>>
>>>> ... what do I have to do to say JFDI instead of prompting? This  
>>>> is not
>>>> the sort of thing I want to fiddle around experimenting, so a  
>>>> little
>>>> guidance would be most appreciated.
>>>
>>> fdisk -B -b /boot/mbr /dev/ad0
>>>
>>> You installed the FreeBSD boot sector stuff, which gives you the  
>>> 'press
>>> F1'  business.  Replace that with the standard mbr, which just boots
>>> straight up.
>>>
>>
>> Rather than replacing it, you can use boot0cfg to set a really short
>> timeout instead; in case you might want that functionality one day.
>
> Heh.  It's not like you only get one chance to rewrite the boot blocks
> on any particular drive.  If anyone needs to (re-)install the  
> FreeBSD boot
> blocks, then you can do very simply it by:
>
>    boot0cfg -B -b /boot/boot0 /dev/ad0
>
> or even
>
>    fdisk -B -b /boot/boot0 /dev/ad0
>
> Or if you need to boot from a serial console you can change /boot/ 
> boot0
> to /boot/boot0sio

Sure, but why get rid of it, when leaving it in with a short timeout  
costs you nothing.




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