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Date:      Thu, 14 Aug 2008 22:40:57 +0200
From:      "C.M. Burns" <montiburns@googlemail.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: Migrate harddisk with FreeBSD into new machine
Message-ID:  <48A49859.3040604@googlemail.com>
In-Reply-To: <20080814202233.GB4558@dan.emsphone.com>
References:  <48A478C5.3030002@googlemail.com>	<6.0.0.22.2.20080814135612.025a8730@mail.computinginnovations.com>	<48A481AE.9080209@googlemail.com> <20080814202233.GB4558@dan.emsphone.com>

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Dan Nelson schrieb:
> In the last episode (Aug 14), C.M. Burns said:
>   
>> Derek Ragona schrieb:
>>     
>>> At 01:26 PM 8/14/2008, C.M. Burns wrote:
>>>       
>>>> I have a problem. A faulty machine was running freeBSD with a two
>>>> harddisk software raid. now these two disks should be put into a
>>>> new machine, but of course it won't boot because it is new
>>>> hardware. Kernel just reports: cannot mount root device from
>>>> /dev/mirror/gm0s1a (or sth like this).
>>>>
>>>> question is now, how can i add the correct driver into the initial
>>>> ramdisk (if there is such a thing on bsd) so the machine finds the
>>>> two drives? second question: how can i afterwards remove the
>>>> software mirror and only use one harddisk from that moment on?
>>>>
>>>> any help is very welcom, as i have no idea about bsd. i am a linux
>>>> guy ;)
>>>>         
>>> What I would do, is install FreeBSD onto a new separate hard disk.
>>> Disks are cheap.  Once you get the boot disk installed you can
>>> create a custom kernel if necessary to support the RAID.
>>>       
>> maybe there is a way to use the "loader prompt" to manually load the 
>> module? it is a buslogic bt948 controller.
>> i would rather not compile a new kernel :)
>>     
>
> I was going to suggest building the buslogic driver as a module and
> then loading it from floppy at the loader prompt, but it doesn't look
> like the "bt" driver is available in module form.  Do you maybe have an
> Adaptec SCSI card you could use instead, at least until you can rebuild
> the kernel?  I know modules for those are on the install CD (newer
> cards will be managed by the ahc or ahd drivers).
>
>   

I could switch to an LSI logic megaraid controller, but i have to check 
the version when i am back at work on monday.
how can i load modules from floppy disk at loader prompt?





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