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From: blymn@awadi.com.au (Brett Lymn)
Newsgroups: comp.os.386bsd.questions
Subject: Re: Second disk...
Date: 27 May 1994 07:24:31 GMT
Organization: AWA Defence Industries
Lines: 44
Message-ID: <BLYMN.94May27165433@mallee.awadi.com.au>
References: <CppBt8.A4C@world.std.com> <2quqse$6hm@agate.berkeley.edu>
<NILS.94May14201323@guru.stgt.sub.org> <2ra9no$oh6@agate.berkeley.edu>
NNTP-Posting-Host: mallee.awadi.com.au
In-reply-to: alanp@uclink2.berkeley.edu's message of 17 May 1994 11:27:52 GMT
>>>>> "Alan" == Alan Scott Pearson <alanp@uclink2.berkeley.edu> writes:
In article <2ra9no$oh6@agate.berkeley.edu> alanp@uclink2.berkeley.edu (Alan Scott Pearson) writes:
Alan> In article <NILS.94May14201323@guru.stgt.sub.org>, Cornelis
Alan> van der Laan <nils@ims.uni-stuttgart.de> wrote:
>> In article <2quqse$6hm@agate.berkeley.edu>
>> alanp@monoceros.EECS.Berkeley.EDU (Alan Pearson) writes:
>>
>> On a SUN filesystem, rwd1c is really just an alias for the
>> whole disk and if you newfs it, you newfs whatever happens to
>> be at the beginning of your disk. If there's, say, a rwd1a with
>> a size of 20MB, you would newfs that. You also can mount rwd1c
>> and, in fact, mount rwd1a.
>>
Alan> Yes, I suppose I was incorrect in saying the behaviour of
Alan> newfs was "wrong" since what I meant was "it is not what *I*
Alan> think it should do." Since partition c has no filesystem
Alan> type, it doesn't make sense that newfs should be able to
Alan> create a filesystem using /dev/rwd?c. Of course, Suns
Alan> interpre- tation that newfs rwd1c == newfs rwd1a is one way
Alan> to do it,
Actually, Cornelis is wrong. If you newfs the c partition on the Sun
then you will newfs the whole disk *not* just the first partition.
The C partition overlaps all other partitions by virtue of being
defined as the entire disk.
Alan> and it could also be argued that it could just
Alan> assume tc=4.2bsd and make a fs of the size of the whole
Alan> drive.
This is what sun does, see above.
Alan> I suppose I should look to POSIX to say what is
Alan> "right" and "wrong".
Not that it will necessarily be sensible.... (I have been burnt by
POSIX behaviour before...)
--
Brett Lymn