sudo gainroot
vi /home/user/.chroot click "Esc" push "a" on keyboard N900 edit this line : "#IMGFILE=/dev/mmcblk0p4" to "IMGFILE=/dev/mmcblk1" click "Esc" push Shift and z z (to save file)
e2fsck -fp /dev/mmcblk1
resize2fs /dev/mmcblk1 4000m
df -h /