maemo.org - Talk - View Single Post - Booting from MMC on N800 Now Available!!

fanoush	2009-02-10 , 08:02
Posts: 2,152 \| Thanked: 1,490 times \| Joined on Jan 2006 @ Czech Republic	#266

Originally Posted by qole

Is there some modification of this method that is still valid for the N8x0 tablets?

How do you mount a jffs2 image on a loop device?

Well, did not try but it should work. You just need losetup and block2mtd kernel module. Not sure about losetup but you can get the module from http://fanoush.wz.cz/maemo/modules-d...2maemo1.tar.gz in drivers/mtd/devices

here is mounting script that worked for me on Ubuntu PC

Code:

if [ `id -u` != 0 ] ; then
    echo "run this as root"
    exit
fi
if [ $# -lt 2 ] ; then
    echo $0 image.jffs2 directory
    exit
fi
LOOPDEV=`losetup -f`
losetup $LOOPDEV $1 #rootfs.jffs2
modprobe block2mtd block2mtd=$LOOPDEV,131072
modprobe jffs2
modprobe mtdblock
sleep 1
[ -d $2 ] || mkdir $2
mount -t jffs2 -o ro /dev/mtdblock0 $2

/dev/mtdblock0 is definitely wrong choice on the tablet. Do not even try, it may trash the bootloader, I think someone complained here it did. Most probably the right choice is /dev/mtdblock5.

Let us know how it went :-)

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Last edited by fanoush; 2009-02-10 at 08:10. Reason: /dev/mtdblock0 is definitely wrong choice !!

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