Date: Fri, 17 Sep 2010 15:35:31 +0200 From: Michael Sperber <sperber@deinprogramm.de> To: "Marat N.Afanasyev" <amarat@ksu.ru> Cc: freebsd-stable@freebsd.org Subject: Re: How to predict drive number change for 7.3->8.1 upgrade? Message-ID: <y9liq247asc.fsf@deinprogramm.de> In-Reply-To: <4C93674B.20300@ksu.ru> (Marat N. Afanasyev's message of "Fri, 17 Sep 2010 17:04:11 %2B0400") References: <201009171238.o8HCcwCl084727@lurza.secnetix.de> <y9lr5gs7cjh.fsf@deinprogramm.de> <4C93674B.20300@ksu.ru>
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"Marat N.Afanasyev" <amarat@ksu.ru> writes: > Michael Sperber wrote: >> >> Oliver Fromme<olli@lurza.secnetix.de> writes: >> >>> Michael Sperber<sperber@deinprogramm.de> wrote: >>> > I just upgraded my desktop system from 7.3 to 8.1, and the main hard >>> > drive, which was /dev/ad6 before is now /dev/ad10. Consequently, the >>> > initial boot failed when trying to mount the root file system from ad6. >>> > >>> > The desktop system is now fixed, but I also have a rented server with >>> > only a serial console, and I worry that the upgrade is going to leave me >>> > with a dead machine. Is there any way to predict how the drive number >>> > changes? (Why does it change at all?) If so, what's the proper way to >>> > tell the system the initial root device *before* rebooting? >>> >>> Remove "options ATA_STATIC_ID" from your kernel config >>> before building the new kernel and rebooting. Then your >>> first disk will be ad0, no matter what controller and >>> channel it is connected to. Be sure to update your >>> /etc/fstab file. >> >> Ah, excellent - that's what I was looking for. Thanks! >> > beware of drago^Wchanging of adX numbers each time you add/remove > drive ;) It's better to label filesystems, imho ;) This is a rented server, so I no drive will ever be removed or added. On the other hand, if I understand it correctly, I'll need to unmount the root partition in order to label it - right? -- Regards, Mike
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