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Date:      Sun, 8 Apr 2012 08:39:04 -0600 (MDT)
From:      Warren Block <wblock@wonkity.com>
To:        =?ISO-8859-7?Q?Airoso=E2icz_fb=2E?= <airosovicz@gmail.com>
Cc:        Matthew Seaman <matthew@freebsd.org>, FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: Upgrade to 9.0 - Mount to root failed..
Message-ID:  <alpine.BSF.2.00.1204080833200.7670@wonkity.com>
In-Reply-To: <CAEUQAzMw4mLKCgoZ-fF56jdtX05zE0zYBYqa66jYEKw4xK1=1w@mail.gmail.com>
References:  <CAEUQAzMw4mLKCgoZ-fF56jdtX05zE0zYBYqa66jYEKw4xK1=1w@mail.gmail.com>

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On Sun, 8 Apr 2012, Airoso?icz fb. wrote:

> It's starting to make sense now.. Mounting ufs:/dev/ad*a*2s1a i.o. from
> ufs:/dev/ad2s1a simply doesn't work because as I've put in my original
> post with # ls -l /dev/ad* it doesn't exist.. Only ad2,ad2s1 & ad2s1a do..

ada device numbering is relative, so the first drive found is always 
ada0.  If there are no ada devices in /dev at all, I'd guess too much 
has been removed from the custom kernel.

> # man 8 tunefs: The tunefs can not be run on an active filesystem.
> To change an active filesystem it must be downgraded to read only or
> to unmounted.. [Which I've done with # mount -r -f..]
>
> # tunefs: /dev/ad2s1a: failed to write superblock..
>
> I've updated the /etc/fstab with the ROOT label but I can't get the
> single-user mount nor the tunefs to work..

http://www.wonkity.com/~wblock/docs/html/labels.html shows a full 
example.



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