Date: Tue, 8 Dec 1998 09:59:36 -0800 (PST) From: Julian Elischer <julian@whistle.com> To: "Arno J. Klaassen" <arno@heho.snv.jussieu.fr> Cc: current@FreeBSD.ORG Subject: Re: devfs questions Message-ID: <Pine.BSF.3.95.981208095439.267A-100000@current1.whistle.com> In-Reply-To: <wpd85uvbcp.fsf@heho.snv.jussieu.fr>
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The dummy mount is the kernel's internal copy of the devfs tree. It is the bluebrint from which other copies are made when devfs is mounted.. you cannot get to it. The reason it is in the mount list is because the mounted devices are mounted from this blueprint, and it's superblocks will never be sync'd if teh filesystem from which it was mounted is not in the mount list. This is admittedly, a hack. When devfs is used to access the ROOT device, it get's more complicated but that code was deleted, so it's less important now. I don't know why the da driver doesn't produce a 6th da device. julian On 8 Dec 1998, Arno J. Klaassen wrote: > > Hi, > > for the last couple of months, I use DEVFS without any problem > on a current PII-SMP system. I added the next line to my fstab: > > devfs /dev devfs rw 0 0 > > I, however, have two questions related to devfs: > - `mount' gives me the following two lines: > > devfs on dummy_mount (local) > devfs on /dev (local) > > where is this dummy_mount coming from? > > - more seriously, I just happen to add a 6th disk to the system, and > devfs just provides me with 5 da devices. > How do I force devfs to provide for at least a da6 device as well? > > Thanx a lot in advance. > > Amicalement, > > Arno J. Klaassen > > -- > > INSERM U483 Creare, > University Pierre et Marie Curie, Boite 23 > 9, quai Saint Bernard > 75 252 Paris Cedex 5 > arno@ccr.jussieu.fr > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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