[Freemint-list] XHDOSLimits

[Miro Kropáček]

I guess dropping a mail to Uwe Seimet about this can't hurt. I remember
some 128 GB limit for HD Driver but that can be something else.

On 4 September 2016 at 01:53, Peter Slegg <p.slegg at scubadivers.co.uk> wrote:

> This thread reminded me of something.
>
> A few years ago I tried a SATA adapter in the Milan. It
> partitioned a 160GB drive but attempts to build an e2fs partition
> left it in a state that it never worked again and it would not
> re-partition with Mint or Ubuntu.
>
> I blamed the adapter and asked Alan about his experiences with SATA
> adapters.
>
> A couple of months ago I got a 160GB IDE drive and had near identical
> issues.
> It partitioned but the last partition could not be initialised as e2fs.
>
> I tried a few times and then gave up. I partitioned about 132GB of the
> drive and mke2fs worked almost immediately.
>
> I've been testing this ever since and it seems to be ok.
>
> Did I hit some limit or some odd behaviour with this size of drive ?
>
>
> Regards,
>
> Peter
>
>
>
> On Thu, 11 Aug 2016 12:00:01 , freemint-list-request at atariforge.org wrote:
> > Send Freemint-list mailing list submissions to
> >     freemint-list at mail.atariforge.org
> >
> >
> > Message: 1
> > Date: Wed, 10 Aug 2016 20:51:50 +0200
> > From: Jo Even Skarstein <joska at online.no>
> > Subject: [Freemint-list] XHDOSLimits
> > To: freemint-list <freemint-list at mail.atariforge.org>
> >
> > Hi,
> >
> > During a conversation with Uwe Seimet on another topic (not
> > MiNT-related), the following question came up:
> >
> > "As far as I can tell when MiNT is initializing it does not (I think it
> > did a long time ago) call XHDOSLimits() in order to update XHDI
> > compatible drivers with information on the actual MiNT GEMDOS limits. As
> > a result with MiNT and HDDRIVER you cannot access more than 16 BIOS
> > drives, and FAT partition sizes are also more limited than they would
> > have to be. Only after calling XHDOSLimits() and increasing XH_DL_DRIVES
> > to 32 with a separate program more than 16 BIOS drives work. Actually,
> > MiNT should do the required calls during initialization, just like
> > Big-DOS does it, at least that was the initial idea, when XHDOSLimits()
> > was added to XHDI long ago."
> >
> > I believe I understand the issue, but I don't know the topic well enough
> > to confirm that the situation is as he describes. Does anybody know?
> >
> > Jo Even
> >
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Wed, 10 Aug 2016 21:37:31 +0200
> > From: Jo Even Skarstein <joska at online.no>
> > Subject: Re: [Freemint-list] XHDOSLimits
> > To: freemint-list at mail.atariforge.org
> >
> > On on., 2016-08-10 at 20:51 +0200, Jo Even Skarstein wrote:
> >
> > > "As far as I can tell when MiNT is initializing it does not (I think it
> > > did a long time ago) call XHDOSLimits() in order to update XHDI
> > > compatible drivers with information on the actual MiNT GEMDOS limits.
> As
> > > a result with MiNT and HDDRIVER you cannot access more than 16 BIOS
> > > drives, and FAT partition sizes are also more limited than they would
> > > have to be. Only after calling XHDOSLimits() and increasing
> XH_DL_DRIVES
> > > to 32 with a separate program more than 16 BIOS drives work. Actually,
> > > MiNT should do the required calls during initialization, just like
> > > Big-DOS does it, at least that was the initial idea, when XHDOSLimits()
> > > was added to XHDI long ago."
> >
> > More details from Uwe:
> >
> > "By the way, this is what MiNT should do: For each XHDI DOS limit (see
> > XHDI specification or http://toshyp.atari.org/en/010008.html for
> > details) MiNT should call XHDOSLimits() and set the limit to the limit
> > actually implemented/supported by MiNT. That's all."
> >
> > Jo Even
> >
> >
>
>
>
>
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-- 
MiKRO / Mystic Bytes
http://mikro.atari.org
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