Reduce boot time with jffs2 and CM-X255

[Michel LECONTE <michel.leconte@sacet.com>]

Hi,

I use a cm-x255 compulab card and I boot on the NAND flash with jffs2
filesystem.

My problem is the boot is too long.

My method to boot on the NAND flash is :

1) I boot on the cm-x225 via nfs.

2) I format the flash:

flash_eraseall -j /dev/mtd1

3) I mount the flash :

mount -t jffs2 /dev/mtdblock1 /mountpoint

4) I put the distribution of my system on the flash:

cp -r /Distribution/* /mountpoint

5) I unmount the flash :

umount /mountpoint

6) Finally, I boot on the cm-x255 board with the 2.6.18 kernel and
options are :

- Boot options : root=/dev/mtdblock1 rootfstype=jffs2
ip=192.168.82.70:::255.255.255.0:arm:eth0

- Miscellaneous filesystems : Journalling Flash File System v2 (JFFS2)
support

JFFS2 debugging verbosity à 0

JFFS2 write-buffering support

JFFS2 summary support (EXPERIMENTAL)


I would like to know what I'm missing or what I have to do to decrease
boot time ?


Thanks for any suggestion or help.

Michel