Hi Martin,
On Thu, Jun 28, 2018 at 9:13 AM Martin Steigerwald <martin@xxxxxxxxxxxx> wrote:
> Geert Uytterhoeven - 28.06.18, 08:45:
> > On Thu, Jun 28, 2018 at 6:59 AM Michael Schmitz <schmitzmic@xxxxxxxxx>
> wrote:
> > > Am 28.06.2018 um 09:20 schrieb Martin Steigerwald:
> > > >>> And as stated in my other reply to the patch:
> > > >>> partition needs 64 bit disk device support in AmigaOS or AmigaOS
> > > >>> like
> > > >>> operating systems (NSD64, TD64 or SCSI direct)
> > > >>
> > > >> I'd probably leave it at 'disk needs 64 bit disk device support
> > > >> on
> > > >> native OS', and only print that warning once.
> > > >
> > > > This is fine with me.
> > >
> > > OK, I'll go with that.
> >
> > 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.
> > > > I would not name the kernel option "eat_my_rdb", but use a less
> > > > dramatizing name.
> > > >
> > > > Maybe just: "allow_64bit_rdb" or something like that.
> > >
> > > I don't expect to get away with that :-)
> >
> > I still fail to see what's the added value of the kernel option...
> > Either the partition is usable, or not.
>
> Well, I could try to contact some of the current AmigaOS developers
> about that and ask them whether they would like to give me a statement
> about this that I am allowed to post here.
>
> I would not know whether they answer and it may take a time. My offer
> stands, but I would only do this, if you really like to have that
> official feedback.
Let me clarify: what exactly would the kernel option allow? When to use it?
> Again, I am pretty sure that what I did is safe on AmigaOS 4 at least,
> but I bet also on AmigaOS <4 with NSD64 or TD64 (except for the
> filesystem sizes, but AmigaOS < 4 does not have JXFS anyway, and did not
> have SFS2 as well, maybe that is available now, I don´t know).
>
> However Joanne is without doubt an authority on RDBs, but she has not
As a former AmigaOS user, I'm fully aware of that (Thanks Joanne! ;-)
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
