Ubifs
From Qi-Hardware
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[edit] Quick summary
[edit] Overview
http://www.linux-mtd.infradead.org/doc/ubifs.html
[edit] Make the ubifs filesystem from the rootfs
root# mkfs.ubifs -r /PATH/TO/ROOTFS -m 4096 -e 516096 -c 4095 -o root.ubifs
[edit] Make ubi image out of the ubifs
root# ubinize -o ubi.img -m 4096 -p 512KiB ubinize.cfg
contents of ubinize.cfg:
[rootfs] # Volume mode (other option is static) mode=ubi # Source image image=root.ubifs # Volume ID in UBI image vol_id=0 # Allow for dynamic resize vol_type=dynamic # Volume name vol_name=rootfs # Autoresize volume at first mount vol_flags=autoresize
[edit] Format the NAND with your new image
root# ubiformat /dev/mtd3 -s 512 -f ubi.img
[edit] Attach the image to the UBI subsystem
root# ubiattach /dev/ubi_ctrl -m 3
[edit] Mount the new device
root# mount -t ubifs ubi0:rootfs /mnt/ubi
[edit] Reboot into the new system with ubifs root
QI＃ setenv bootargs 'mem=32M console=ttyS0,57600n8 ubi.mtd=3 rootfstype=ubifs root=ubi0:rootfs rw rootwait' QI＃ boot
