Date: Wed, 27 Sep 1995 08:59:05 +0100 (MET) From: Ollivier Robert <roberto@keltia.freenix.fr> To: nate@rocky.sri.MT.net (Nate Williams) Cc: hackers@FreeBSD.org, bde@FreeBSD.org Subject: Re: Diskslice naming convention? Message-ID: <199509270759.IAA27063@keltia.freenix.fr> In-Reply-To: <199509262344.RAA15898@rocky.sri.MT.net> from "Nate Williams" at Sep 26, 95 05:44:17 pm
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It seems that Nate Williams said: > So, am I right in saying that other than the 'compatability' slice of > /dev/xd#a for the root partition, the naming scheme is as follows: It is not only the root partition. If you have only one FreeBSD slice on a disk, it will use the compatibility slice. > X = generic device name. > # = disk number > Y = slice number (ie; one of the 4 'fdisk' partions') > > Xd#asY (where 'a' could be any lower-case letter 'a-h') Xd#sYa instead. the 'a' is at the end and shows the partition # in the slice Y. > BTW - Are slices named 1-4 or 0-3? 1-4, 0 is the compatibility slice. > Anyway, we create a FreeBSD slice by setting it's ID to 0xA5. Then, we > build a disklabel onto this 'slice' which gives us individual partitions > on that slice. Are there any 'special' partitions in this disklabel? 'c' is special and indicates the whole slice (as 'c' indicated the whole BSD partition in the old scheme). > How would I read the *entire* FreeBSD portion of the slice? How about > the entire disk? How do I create a FreeBSD partition which accesses a > DOS slice? - The FreeBSD portion of a slice is Xd#sY (I think). - The entire disk is Xd#. - FreeBSD partition to access a DOS slice is not possible. A DOS partition will get its own slice (e.g. the sd0s4 slice could be a DOS "partition" -- in DOS terms). I hope I'm right Bruce :-) -- Ollivier ROBERT -=- The daemon is FREE! -=- roberto@keltia.frmug.fr.net FreeBSD keltia.freenix.fr 2.2-CURRENT #2: Mon Sep 25 02:02:31 MET 1995
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