Reduce boot time with jffs2 and CM-X255
Michel LECONTE
michel.leconte at sacet.com
Tue Dec 19 11:25:37 EST 2006
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
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