Date: Mon, 29 Nov 2004 07:21:00 -0500 From: Michael Grant <mg-fbsd3@grant.org> To: "Daniel O'Connor" <doconnor@gsoft.com.au> Cc: freebsd-stable@freebsd.org Subject: Re: bios disk numbers and device names Message-ID: <20041129122059.GI98559@grant.org> In-Reply-To: <200411292133.25842.doconnor@gsoft.com.au> References: <20041129101033.GH98559@grant.org> <200411292133.25842.doconnor@gsoft.com.au>
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On Mon, Nov 29, 2004 at 09:33:25PM +1030, Daniel O'Connor wrote: > On Mon, 29 Nov 2004 20:40, Michael Grant wrote: > > Is there any way to statically assign a device name to a specific disk > > so that if the BIOS renumbers the disks (for example if I move around > > a controller) so that the devices always come up with the same name? > > The BIOS naming means nothing to freebsd (in general). > > I don't think there's much you can do - device names are based on the order of > probing so if you change which slot on the controller it's connected to it > will change device name. > > What sort of device in particular? Specifically, ata and scsi. This is a big problem for me. Once I lost a controller and it was a nightmare trying to get the machine to boot after moving the disks to the other controller. Another time I added a disk and again it was a nightmare. Has anyone thought about this problem? Is there some spare space in the label that could be used for a device name that, if set, could be used in place of (or an alias for) a name like da0? Michael Grant
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