Date: Thu, 23 Oct 1997 13:06:22 -0700 (PDT) From: Doug White <dwhite@gdi.uoregon.edu> To: Gunnar Pruessner <pruess@yamuna.will.knipp.de> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: switching root device Message-ID: <Pine.BSF.3.96.971023130548.2937e-100000@gdi.uoregon.edu> In-Reply-To: <199710131040.MAA07164@yamuna.will.knipp.de>
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On Mon, 13 Oct 1997, Gunnar Pruessner wrote: > I have two SCSI HDs on an Adaptec 2940UW, which have ID0 and ID2. There > are no other HDs (especially no IDE). Both HDs have an installation > of FreeBSD (2.2.2). To switch from boot device ID0 to ID2 I simply changed > the boot device in the controllers BIOS (I wanted to switch statically > rather then typing "0:sd(1,a)/kernel" again and again). > But whenever the system boots from ID2 it "switches root to sd0" after > device probing. It has booted the correct kernel from sd1 (ID2) but the > wrong devices are mounted, because it mounts /dev/sd0a as / and reads > the wrong /etc/fstab. > Any ideas? You'll need to wire down your SCSI devices in each environment, so that the boot disk always shows up as sd0. See /sys/i386/conf/LINT. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major
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