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Date:      Mon, 20 Apr 2009 12:22:34 +0200
From:      Marten Vijn <info@martenvijn.nl>
To:        "K Anh, Hu" <xkyanh@gmail.com>
Cc:        freebsd-current@freebsd.org
Subject:   Re: auto boot into single mode
Message-ID:  <1240222954.20308.6.camel@polaris>
In-Reply-To: <20090420164641.1842c264@icy.local>
References:  <20090420164641.1842c264@icy.local>

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On Mon, 2009-04-20 at 16:46 +0700, K Anh, Hunh wrote:
> Dear all,
> 
> I have a pfSense router. pfSense is based on FreeBSD.
> 
> Because of low cost design, I haven't any fail-over router. Hence I often follow these steps:
> 
> * boot the router normally
> * electric cut
> * physically access the router
> * boot the router in single mode
> * run $fsck -y /dev/ad8s1a (automatically fix all errors)
> * reboot the router in normal mode
> * enjoy the next electric cut

For crusial systems I put a box on top of it with USB (running NanoBSD
or TinyBSD).

USB gives my access to:
- serial
- power (Gembird Silver line) 
  - http://sispmctl.sourceforge.net/
  - http://www.freebsd.org/cgi/query-pr.cgi?pr=132786
 
You also may consider to rebuild your firewall in nanobsd, you don't
have a gui, but will have of lot more freedom. 


cheers,
Marten


> 
> (Because the router has a very hard work it cannot suffer anything wrong on the harddisk.)
> 
> I also have to do the same steps for my laptop.
> 
> My question is that whether we can setup FreeBSD so that it can automatically boot into single mode if there's something wrong in hard disk, *OR* at least it will execute fsck automatically/successfully?
> 
> (I often see that after such type of error, FreeBSD cannot fix the hard disk in normal mode. This is quite far from Linux; I rarely boot my Linux machines single mode after electric cut)
> 
> Thank you for you helps,
> 
> Regards,
> 
-- 
Marten Vijn
linux 2.0.18 OpenBSD 3.6 FreeBSD 4.6
http://martenvijn.nl
http://opencommunitycamp.org
http://wifisoft.org





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