Date: Fri, 17 Sep 2010 17:04:11 +0400 From: "Marat N.Afanasyev" <amarat@ksu.ru> To: Michael Sperber <sperber@deinprogramm.de> Cc: freebsd-stable@freebsd.org Subject: Re: How to predict drive number change for 7.3->8.1 upgrade? Message-ID: <4C93674B.20300@ksu.ru> In-Reply-To: <y9lr5gs7cjh.fsf@deinprogramm.de> References: <201009171238.o8HCcwCl084727@lurza.secnetix.de> <y9lr5gs7cjh.fsf@deinprogramm.de>
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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 ;) -- SY, Marathome | help
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