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From: owens@unix1.j6.eucom.mil (Kerry F. Owens)
Newsgroups: comp.os.minix
Subject: Re: file sizes
Message-ID: <27487@nigel.ee.udel.edu>
Date: 15 Aug 90 07:32:27 GMT
Sender: usenet@ee.udel.edu
Lines: 36

> In article <2159@runxtsa.runx.oz.au>, brucee@runxtsa.runx.oz.au (Bruce Evans)
>  writes:
> > In article <3077.26c290ee@cc.curtin.edu.au> sschnellm@cc.curtin.edu.au writes:
> >>compressed all directories. Now my commands.tar.Z file is 1.24 Mbytes
> >>I have made a file system of size 1450 blocks on a 1.44Mbyte disk, but
> >>when I mount it and say
> >>
> >>      cp commands.tar.Z /mnt3
> >>
> >>I get the following error message :
> >>
> >>cp : error 0
> >
> > There are only 1440 blocks on a 1.44M disk.
> >
> I must apologize for the above misunderstanding.
> When I formatted the disk under DOS, it actually formatted to 1.451Mbytes.
> Therefore I made a 1450 block size file system on the disk.

On my Unix system at home I have 1.2Mb diskettes.  
They format to 1260blocks if I remember correctly.  But only when I access
the raw device.
I run mkfs on them which creates the i-nodes and file system structure.  
I let mkfs decide on how many i-nodes based on the size of the file system 
specified.

On my unix system I would use df or fsck to tell me the number of unused
blocks available. after the whole procedure.

I will check this on my unix and my minix tonite.
-- 
****************************************************************************
Kerry F Owens
US Address	BRD Address		Internet Address
Box 453		Brand Str 13		owens@unix1.j6.eucom.mil
APO NY 09128	7032 Sindelfingen 7