[Oberon] FPGA - Save / Restore OBERON.FS

[Tomas Kral]

Hi Paul,

Probably yes, I was curious how original RISC.ing was produced as it
has only used sectors in it, some 321?

So the creator must have had some fairly good guess, and I want to do
the same.

Tomas

On Fri, 14 Apr 2017 13:45:17 +0100
Paul Reed <paulreed at paddedcell.com> wrote:

> Hi Tomas,
> 
> I think Chris' method is safer.  If the Kernel reports 921 sectors in
> use, it doesn't necessarily mean they are contiguous.
> 
> Cheers,
> Paul
> 
> 
> > Hi Christopher,
> >
> > Thank you, I have in the end resorted to:
> > $ dd if=/dev/sdc of=OBERON1.FS bs=1K skip=265K
> > count=65K
> >
> > `System.Watch' reports 921 sectors used, so I tempted to try
> > $ dd if=/dev/sdc of=OBERON1.FS bs=1K skip=265K
> > count=921, instead.
> >
> > Which goes very fast on RPI here.
> >
> > Tomas
> >
> > On Thu, 13 Apr 2017 20:43:16 +0200
> > Tomas Kral <thomas.kral at email.cz> wrote:
> >
> >> Hi,
> >>
> >> EDIT, at the end
> >> EDIT(2), at the end
> >>
> >> Reading some earlier post by Paul Read, I look for `dd' syntax to
> >> save and restore my work on uSD card.
> >>
> >> Providing
> >> uSD card is formatted as 256MB FAT + 65MB OBERON.
> >>
> >> Restore my work indexed as `1' may work like this,
> >> $ dd if=OBERON1.FS of=/dev/sdc bs=1024 seek=262145
> >>
> >> By how about saving the work first,
> >> $ dd if=/dev/sdc of=OBERON1.FS bs=1024 skip=262145 count=???
> >>
> >> What count should I use?
> >> `System.Watch' may give a clue, but does not seem exact.
> >>
> >> EDIT, correction
> >>
> >> I could also use a fixed value of the whole 65MB Oberon partition,
> >> but not sure if below is correct
> >> $ dd if=/dev/sdc of=OBERON1.FS bs=1024 skip=262145
> >> count=$((65*1024))
> >>
> >> EDIT(2), correction
> >>
> >> Reading `dd' manual, allows for suffixes,
> >> $ dd if=/dev/sdc of=OBERON1.FS bs=1K skip=265K
> >> count=65K
> >> Correct?
> >>
> >> Many thanks.
> >> Tomas
> >> --
> >> Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related
> >> systems https://lists.inf.ethz.ch/mailman/listinfo/oberon
> >
> > --
> > Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related
> > systems https://lists.inf.ethz.ch/mailman/listinfo/oberon
> >
> 
> 
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