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

Martin Steigerwald
2018-06-29T21:10:20Z

Hi Michael.

Michael Schmitz - 29.06.18, 10:42:
> 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?

As far as I know most GPT partitioning tools create a fake MBR with one
large partition of a partition type for GPT to tell legacy applications
to leave the disk alone.

Thanks,
--
Martin