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Date:      Tue, 16 Sep 2003 19:26:31 +0200
From:      David =?iso-8859-1?Q?Sieb=F6rger?= <drs@rucus.ru.ac.za>
To:        Charles Howse <chowse@charter.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Repost: Drive jumpers - was:  Boot Timeout?
Message-ID:  <20030916172631.GA1438@rucus.net>
In-Reply-To: <003701c37c49$0827f8c0$04fea8c0@moe>
References:  <003701c37c49$0827f8c0$04fea8c0@moe>

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At  1:52 PM on Tuesday 16 September 2003, Charles Howse wrote:
> I currently have a HDD as the primary master, a CDROM as the secondary
> master and a HDD as the secondary slave on my FBSD box.
> 
> FBSD detects them as ad0, acd0 and ad3, respectively.
> 
> If I change the drive jumpers to make the HDD the secondary master and
> the CDROM the secondary slave, is it correct to assume that FBSD will
> detect them as ad1 and acd0?

ad2, rather.  Assuming that you use the ATA_STATIC_ID kernel option,
ATA drives will be numbered like this:

    ad0     primary master
    ad1     primary slave
    ad2     secondary master
    ad3     secondary slave
    ...

> This configuration will break /etc/fstab, as well as anything else that
> references the HDD on the secondary IDE channel. Other than /etc/fstab
> and personal files, what should I edit to reflect the hardware changes?

When I've made those sorts of changes, I've only ever had to change
fstab and my scripts that run dump(8).


-- 
David Siebörger
drs@rucus.ru.ac.za



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