Reduce boot time with jffs2 and CM-X255

Michel LECONTE michel.leconte at
Tue Dec 19 11:25:37 EST 2006


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

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

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

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.


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