Yay! I have good news :) I have read a bit more about MTD devices and how they work. A new function called nanddump() replaces the old and buggy rf_extract() one.
This function has been covardly copied from the nanddump utilty of the mtd-utils, it sets the mtd device in raw mode and gets some important information to make a proper dump. mtd3 for example have a page size of 2048 and an OOB one of 64. This means that every 0x800 bytes there are 0x40 bytes of internal nand information called 'OOB'. This information stores some info like a checksum and a mark if it is corrupted. The image required to flash does not needs the OOB data. The new dump shows this information and also checks for bad blocks (but does not fixes). I'm planning to do more tests on the mtd to allow 0xFFFF to repartitionate the whole nand, fix bad blocks, and reflash directly from the device. This will make 0xFFFF a complete flasher inside and outside the device. Back to the dumping stuff.. There are some problems with the dump, I have noticed 0 byte dump for the bootloader pieces (xloader and secondary). I will look for them, may be they need a different way to be dumped or I have made something wrong. So please take care reflashing the dumps of these pieces. The safer way to test if a dump/restore works is by reflashing the initfs.jffs2 piece. The steps are just the same as before: n770$ mkdir /media/mmc1/dump n770$ 0xFFFF -e /media/mmc1/dump The resulting images are stripped to get a reduced size to not completely fill the partition which results on blank screen when rebooting (looks like a bug in secondary when jumping into initfs). The resulting files should be fine to be reflashed via USB: $ mount /mnt/usb $ 0xFFFF -p /mnt/usb/dump/initfs.jffs2 -R Now...Have fun dumping and restoring!! I would like to know the results on n800. Anybody can test? This means that we can starting building our own cooked roms to avoid reinstalling everything all the time we brick our gadgets for backups or so. Download link to download sources: http://news.nopcode.org/miau/pvc.cgi?dist=0xFFFF --pancake _______________________________________________ 0xffff mailing list 0xffff@lists.nopcode.org https://lists.nopcode.org/mailman/listinfo/0xffff
