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Re: formatting to FAT32

From Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM>
Newsgroups comp.os.os2.beta, comp.os.os2.utilities, comp.os.os2.programmer.misc, comp.os.os2.misc
Subject Re: formatting to FAT32
References (9 earlier) <4D95CB7D.2060206@chollian.net> <IU.D20110401.T183722.P49800.Q0@J.de.Boyne.Pollard.localhost> <YEdw17zDmnZd-pn2-Rc2UVCMFU0i9@0605ds7-suoe.2.fullrate.dk> <IU.D20110402.T141716.P52711.Q0@J.de.Boyne.Pollard.localhost> <slrnipf6er.8bt.nospam-abuse@powdermilk.math.berkeley.edu>
Message-ID <IU.D20110403.T011744.P54352.Q0@J.de.Boyne.Pollard.localhost> (permalink)
Organization virginmedia.com
Date 2011-04-03 02:17 +0100

Cross-posted to 4 groups.

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>> * Raw access with DosRead/DosWrite/DosSetFilePtr works just fine on 
>> your ~4GiB FAT32 volume.
>>
> No. We know that it does not work OK.
>

Yes, we know that it works OK when reading and writing whole disc 
sectors using the raw interface.  Allan has run CHKVOL all of the way 
through quite successfully, twice even, and sent me the log of its 
output as proof.  The fact that I know how big a volume it is is 
testament to that.  The volume size is part of the summary that CHKVOL 
prints out when it has finished.

> In my experience, it works OK with 512 B reads, not with 64K reads 
> (and IIRC, not even with 4K reads).
>

I wouldn't be surprised by several of the 16-bit innards of OS/2 having 
problems with I/O in chunks of 64KiB.  That's one of the reasons that 
the FORMAT code in my FAT.DLL caps cluster sizes at 32KiB when it is in 
IBM OS/2 compatibility mode, so that it avoids creating volumes that 
OS/2 might then have trouble with.  (Some of the other reasons are the 
same as Microsoft's.  See KnowledgeBase article Q184006 et al.)

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Thread

Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-03-31 23:30 +0100
  Re: formatting to FAT32 Ilya Zakharevich <nospam-abuse@ilyaz.org> - 2011-03-31 23:16 +0000
    Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-01 02:11 +0100
      Re: formatting to FAT32 KO Myung-Hun <komh@chollian.net> - 2011-04-01 21:56 +0900
        Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-01 19:37 +0100
          Re: formatting to FAT32 "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-02 10:21 +0200
            Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-02 15:16 +0100
              Re: formatting to FAT32 Ilya Zakharevich <nospam-abuse@ilyaz.org> - 2011-04-02 21:49 +0000
                Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 02:17 +0100
                Re: formatting to FAT32 Ilya Zakharevich <nospam-abuse@ilyaz.org> - 2011-04-03 09:17 +0000
                Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 19:51 +0100
              Re: formatting to FAT32 "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-03 00:12 +0200
                Re: Is JFS really open source? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 01:50 +0100
                Re: Is JFS really open source? Dave Yeo <dave.r.yeo@gmail.com> - 2011-04-02 22:33 -0700
                Re: Is JFS really open source? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 19:32 +0100
                Re: Is JFS really open source? Dave Yeo <dave.r.yeo@gmail.com> - 2011-04-03 14:04 -0700
                Re: Is JFS really open source? Steve Wendt <spamsux@forgetit.org> - 2011-04-03 15:51 -0700
                Re: Is JFS really open source? "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-04 01:24 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-04 11:22 +0200
                Re: Is JFS really open source? Anonymous <nobody@remailer.paranoici.org> - 2011-04-04 16:44 +0200
                Re: Is JFS really open source? Dave Yeo <dave.r.yeo@gmail.com> - 2011-04-04 09:03 -0700
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-05 17:15 +0200
                Re: Is JFS really open source? Dave Yeo <dave.r.yeo@gmail.com> - 2011-04-05 16:29 -0700
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-11 04:16 +0200
                Re: Is JFS really open source? Dave Yeo <dave.r.yeo@gmail.com> - 2011-04-10 19:28 -0700
                Re: Is JFS really open source? what.ever@neverm.ind (A.D. Fundum) - 2011-04-11 05:06 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-11 07:07 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-11 07:25 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-25 12:20 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-11 02:34 +0200
                Re: Is JFS really open source? "Alex Taylor" <mail.me@reply.to.address> - 2011-04-04 09:51 -0500
                Re: Is JFS really open source? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-05 19:51 +0100
                Re: Is JFS really open source? Dave Yeo <dave.r.yeo@gmail.com> - 2011-04-05 16:34 -0700
                Re: Is JFS really open source? "Andy" <nospam-abwillis1-nopspam@nospam-gmail.com> - 2011-04-06 01:05 +0000
                Re: Is JFS really open source? "Alex Taylor" <mail.me@reply.to.address> - 2011-04-08 04:24 -0500
                Re: Is JFS really open source? Paul Ratcliffe <abuse@orac12.clara34.co56.uk78> - 2011-04-08 11:49 +0000
                Re: Is JFS really open source? "Alex Taylor" <mail.me@reply.to.address> - 2011-04-10 01:26 -0500
                Re: Is JFS really open source? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-08 21:03 +0100
                Re: Is JFS really open source? "Alex Taylor" <mail.me@reply.to.address> - 2011-04-10 01:25 -0500
                Re: Is JFS really open source? Dave Yeo <dave.r.yeo@gmail.com> - 2011-04-10 00:42 -0700
                Re: Is JFS really open source? "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-10 21:31 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-10 23:37 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-10 11:37 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-10 22:42 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-11 00:21 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-11 01:15 +0200
              Re: Does JFS work on OS/2 version 4.0 and earlier? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 22:29 +0100
                Re: Does JFS work on OS/2 version 4.0 and earlier? "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-04 01:31 +0200
                Re: Does JFS work on OS/2 version 4.0 and earlier? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-04 11:31 +0100
              Re: formatting to FAT32 Lars Erdmann <lars.erdmann@arcor.de> - 2011-04-04 20:57 +0200
                Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-05 15:09 +0100
                Re: formatting to FAT32 Lars Erdmann <lars.erdmann@arcor.de> - 2011-04-06 08:07 +0200
          Re: formatting to FAT32 KO Myung-Hun <komh@chollian.net> - 2011-04-02 22:13 +0900
            Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-02 18:59 +0100
              Re: formatting to FAT32 KO Myung-Hun <komh@chollian.net> - 2011-04-03 14:51 +0900
                Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 22:00 +0100
                Re: formatting to FAT32 KO Myung-Hun <komh@chollian.net> - 2011-04-04 22:19 +0900
                Re: formatting to FAT32 "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-04 16:51 +0200
                Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-06 18:20 +0100
                Re: formatting to FAT32 "Andy" <nospam-abwillis1-nopspam@nospam-gmail.com> - 2011-04-05 15:42 +0000
                Re: formatting to FAT32 "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-05 20:08 +0200
                Re: formatting to FAT32 "Andy" <nospam-abwillis1-nopspam@nospam-gmail.com> - 2011-04-05 22:49 +0000
                Re: formatting to FAT32 "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-06 01:23 +0200
                Re: formatting to FAT32 "Andy" <nospam-abwillis1-nopspam@nospam-gmail.com> - 2011-04-06 01:10 +0000
            Re: formatting to FAT32 Ilya Zakharevich <nospam-abuse@ilyaz.org> - 2011-04-02 22:00 +0000
              Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 02:32 +0100

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