Re: Subject: [PATCH RFC] block: fix Amiga RDB partition support for disks >= 2 TB

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Hi,

Geert Uytterhoeven - 29.06.18, 10:51:
On Fri, Jun 29, 2018 at 10:43 AM Michael Schmitz 
<schmitzmic@xxxxxxxxx> wrote:
Am 28.06.18 um 21:25 schrieb Geert Uytterhoeven:
Do we really need the warning?
Once the parsing is fixed doing 64-bit math, it does not matter
for
Linux anymore.

Well, irony of this is: In my case the RDB has been created on a
machine with a native OS. So Linux warns me about something I
already did so on the native OS without any warning. In this
case AmigaOS 4.0.> > 
Exactly.

So moving a disk partitioned under AmigaOS 4.0 to a system running
an
older version of AmigaOS can fail miserably. Not a Linux issue.
Linux also doesn't warn about disks with GPT failing to work on
old MSDOS.> 
Would MSDOS recognize the GPT partition as 'probably FAT', and
attempt to use it?

No idea...

Probably some old Windows or MacOS versions will just suggest to
format your "new" disk ;-)

Heh… MacOS X last I saw it just offers to initialize any disk it does 
not know about. I had this with a friend who uses Mac quite some years 
ago with an external harddrive with Linux filesystems. I told him Mac OS 
X would not understand it, but he did not believe me. Well luckily 
enough I have been quick enough to unplug the USB cable before he could 
hit the initialize button. And yes, that is right, Mac OS X at that time 
did not even tell the user that initializing means *formatting the disk 
and making all data that was previously on it unavailable*. I did not 
even believe it that they had no stern warning about initializing in the 
dialog window. I hope they improved the wording meanwhile.

Thanks,
-- 
Martin


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