[Oberon] FPGA - Save / Restore OBERON.FS

Tomas Kral thomas.kral at email.cz
Thu Apr 13 20:43:16 CEST 2017


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.

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

EDIT(2), correction

Reading `dd' manual, allows for suffixes,
$ dd if=/dev/sdc of=OBERON1.FS bs=1K skip=265K

Many thanks.

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