On Mon, 2011-04-25 at 13:42 +0200, Angelo Dureghello wrote: > Dear All, > > i have finally a well working uClinux running on a Coldfire-based custom > board i developed. > I am looking for some basic help to have a little part of the flash available > to store some few KB of non volatile data. > > I have actually a 4Mb flash, first 64K are used from the bootloader, 2.3M > busy from the kernel+romfs image, the rest (abt 1,5M) is free. > Once the kernel is loaded into ram, i can move and operate inside the romfs > tree. > Actually, my idea to store non-volatile data is to create an additional jffs2 > partition in the last 1,5M, but seems i cannot mount it in any romfs folder. > So i just need some basic help for now, > - is this possible in theory (romfs+jffs2) ? > - does it have a sense or this is a totally wrong approach ?
Mount points are just directories that should exist in the proper place in order to have a given filesystem available under another filesystem. So, if you want your r/w jffs2 filesystem to be available under /data on your system, just make sure your romfs contains the corresponding directory, and your /etc/fstab contains the correct reference to the block device associated to your flash segment. There might be a lot of stuff to configure, depending on your flash type (NAND or NOR), your flash partitioning schema (I personally have used the mtd command line for the linux kernel) and the initial setup of the flash memory with the filesystem image. Check out http://www.linux-mtd.infradead.org/archive/index.html for more information. > many thanks, > > ragards, > angelo Regards Ulisses _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
