Date: Sun, 13 May 2007 09:21:34 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Sam Lawrance <boris@brooknet.com.au> Cc: freebsd-questions@freebsd.org Subject: Re: Skipping "F1 FreeBSD" prompt on boot Message-ID: <4646CA8E.9040208@infracaninophile.co.uk> In-Reply-To: <9979A1FD-F329-4C64-B5D2-66399F731E87@brooknet.com.au> References: <46458C63.8040600@landgren.net> <46459E20.5060108@infracaninophile.co.uk> <86C5378E-69FE-4A9F-9C77-C7970E42481F@brooknet.com.au> <4646C922.7040902@infracaninophile.co.uk> <9979A1FD-F329-4C64-B5D2-66399F731E87@brooknet.com.au>
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Sam Lawrance wrote:
>
> 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.
>
Why leave it in when it costs you nothing to change it?
- --
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
Kent, CT11 9PW
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