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Originally Posted by stronggeek
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Hey rob1303, I have question for you.
I'm currently running PI (and with no speed issues) from my SD card, but I originally had the app in ram, then fs before finally re-installing it to the sd.
My question is: is installing it to ram a prerequisite before being able to inst. to the card or should one be able to inst. to the card without first installing to ram and have the updated version still function over the rom version?
Thanks.
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I am surprised that it is working - just on what I have read on the PocketInformant site - where they state that any upgrade to a 47xx version of PI MUST be installed in RAM to work.
But thinking about it logically I suppose that the following could happen

- installing the update to RAM - this would "copy over" the built in files
- uninstalling PI - would delete the references to them in the File Allocation Table
- installing to SD - would add markers in the FAT to tell it to look at the SD card.
So it may be that by installing to RAM first, you can then install and run the programme from SD card (you won't gain anything in RAM doing this, but you will lose less on installing the updated version).
As I said I don't know - but if someone else with a 47xx wants to try it (and keep a track on memory used then I think everyone who has a 47xx would be very interested).