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Diffstat (limited to 'doc/pieces')
| -rw-r--r-- | doc/pieces | 37 |
1 files changed, 37 insertions, 0 deletions
@@ -4,3 +4,40 @@ Fiasco firmware pieces The firmware for the maemo devices is composed by a set of pieces containing the required parts to update the whole system following a partition layout defined by NOLO on the internal flash memory. + +Nokia provides a blob packed with a proprietary format called 'FIASCO'. This +blob contains the following pieces: + + - omap-nand - only flashable via serial jtag + - xloader - first part of nolo + - secondary - second part of nolo (usb support and launches kernel) + - kernel - the kernel + - initfs - initial system that initializes everything and runs rootfs + - rootfs - the whole system image + +Some of these pieces are versioned to match board specific features +(mostly xloader and secondary ones). + +This format is not supported by 0xFFFF at this moment, but there are no +plans for doing it in short term. This is because we only need to flash +separated pieces. We can just distribute tarballs containing the pieces +and meta information with a whole Free OS for the internet tablets. + +To flash an initfs partition and reboot: + + $ 0xFFFF -p initfs%initfs.jffs2 -R + +The format of the argument is [piece-type] % [file-name] (% [version-string]). + +Pieces can be automatically identified by using the '-I' flag: + + $ 0xFFFF -I initfs.jffs2 + initfs.jffs2: initfs + +You can dump these pieces from the internal memory of the internet +tablet by using the mtd-utils over /dev/mtd* or just running: + + n770$ 0xFFFF -e /media/mmc1 + +There is another way for dumping pieces with extra parameters and options, +read doc/dumping for more information. |