Date: Mon, 30 Mar 1998 22:27:30 +0200 (CEST) From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de> To: mike@smith.net.au (Mike Smith) Cc: andre.albsmeier@mchp.siemens.de, freebsd-stable@FreeBSD.ORG Subject: Re: sd0[a-h], are they still needed? Message-ID: <199803302027.WAA17951@intern> In-Reply-To: <199803302000.MAA01229@dingo.cdrom.com> from Mike Smith at "Mar 30, 98 12:00:36 pm"
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> >
> > Will the /dev entries sd0[a-h] still be supported in the future? I still
>
> Yes. They represent partitions on a disk which (effectively) does not
> have a slice table.
>
> > use them on my non-root disks because they are shorter and IMHO easier
> > to read.
>
> If these disks have valid slice tables, this usage is incorrect, and
> will probably not work with 3.0. There will likely not be any changes
> prior to 3.0 that will affect this usage however.
OK, so when fdisk reports
fdisk: Invalid fdisk partition table found
I use sd0a otherwise sd0s1a (of course if it is slice 1)?
Or do I have to use the sd0s1 form only if the slice does not start
at C/H/S = 0/0/1 ?
So I have 3 possibilities (of course only for non root-disks):
1.) The whole disk is dedicated to FreeBSD and starting at C/H/S = 0/0/1 ?
==> I have to use sd0a.
2.) Like 1. but there is also a single slice entry pointing to that partition:
==> I can use sd0a and sd1s1a
3.) The partition starts somewhere else (e.g. C/H/S=0/1/1) and of course
has a slice entry:
==> I must use sd1s1a.
Partitions with C/H/S=0/0/1 are the "dangerously dedicated" partitions.
I hope this is right; as I noted before, I couldn't follow the discussion from
the start.
Thanks so long,
-Andre
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