In message <[EMAIL PROTECTED]> Bruno Gravato wrote: > First of all... Hi!
Hi, Bruno :-) > Some might question themselves about "How many writes can I do to a flash > disk?", well it depends on the manufacturer, some have internal wear > levelling mechanism like sandisk (there's a sandisk paper about this but I > haven't the link here now). There is a nice discussion about this in some Another big problem is: _when_ does the device perform the wear levelling? For example, many (most ?) CompactFlash cards do this only at power-on, so if your system does not get rebooted on a regular base you better don't relay on any wear levelling on such devices. > I feel like if I had forget to say something, but this is already getting > to big so I'll end here for now :) Well, maybe I should also point out that there are ways to make a read-only filesystem look as if it was writable; this is very usefult first to find out which files are actually writeen, and second to redirect these writes to a (small) writable device or partition. For more information about the "mini_fo" Overlay Filesystem for Embedded Systems see http://www.denx.de, ftp://ftp.denx.de/pub/mini_fo/ and especially http://www.denx.de/PDF/Diplomarbeit-MK-1.0-net.pdf Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: [EMAIL PROTECTED] It is dangerous to be right on a subject on which the established authorities are wrong. -- Voltaire
