Date: Thu, 16 Sep 2010 13:17:40 +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: <4C91E0B4.2090103@ksu.ru> In-Reply-To: <y9l7himgit9.fsf@deinprogramm.de> References: <y9l7himgit9.fsf@deinprogramm.de>
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Michael Sperber 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? > you may try to label your slices/labels and mount /dev/label/root instead of /dev/adXsYa see man 8 glabel -- SY, Marat
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