UBIFS
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Revision as of 09:16, 1 September 2009 by Salocin68 (Talk | contribs) (New page: This is a preliminary page dealing with the installation of UBIFS on the APF boards. UBIFS will replace JFFS2 file system on NAND based board because JFFS2 induces a big overhead when par...)
This is a preliminary page dealing with the installation of UBIFS on the APF boards. UBIFS will replace JFFS2 file system on NAND based board because JFFS2 induces a big overhead when parsing, reading and writing on NAND devices UBISFS scalability
Introduction
Setting up
- host system: add mtd-utils uuid uuid-dev packages:
sudo apt-get install mtd-utils uuid uuid-dev
- buildroot: target filesystem -> ubifs root filesystem (0x1F800, 0x800, 2047)
- linux: file systems -> Miscellanous -> ubifs support and disable debugging !!
- linux: device driver -> mtd -> ubi unsorted block image -> Enable UBI (4096) and disable debugging !!
- uboot: setenv bootcmd run ubifsboot
- uboot: setenv download_rootfs tftpboot ${loadaddr} ${serverpath}${board_name}-rootfs.arm.ubifs
Additional informations
A new file 'ubinize.cfg' defining the ubi volumes is located in target/device/armadeus/apf27 this file contains the different UBI volumes of the UBI image:
- [ubifs]
- mode=ubi
- image=apf27-rootfs.arm.ubifs
- vol_id=0
- vol_size=200MiB
- vol_type=dynamic
- vol_name=rootfs
- vol_alignment=1
- vol_flags=autoresize
This file is processed by the ubinize utility after mkfs.ubifs.
