Date: Thu, 16 Sep 2010 11:05:06 +0200 From: Michael Sperber <sperber@deinprogramm.de> To: freebsd-stable@freebsd.org Subject: How to predict drive number change for 7.3->8.1 upgrade? Message-ID: <y9l7himgit9.fsf@deinprogramm.de>
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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? -- Regards, Mike
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