What if you copied files in Data partition, wrote image, then pasted the original data back into the Data partition on newly flashed SD card?
That would work too - I hadn't thought of it.
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What I did instead was to add a few lines to S01create_data script and use 'blkid' to see if there is a preexisting 'DATA' partition; if there's one I just mount it ().
This way I can just run something like:
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dd if=sdcard.img of=/dev/sdX bs=8M
and even if it overrides the MBR, S01create_data is still able to find the data partition.
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This is why I hope this approach would also work for those using other applications writing to the SD card, as long as they don't overwrite the content of the data partition.
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Franco
