Originally Posted by SeekerLoki
The problem is by default our /system are mounted read-only. To fix this at a root prompt type: "mount -o rw,remount /dev/null /system"
This will allow you to change the permissions on Superuser.apk and change the mount_ext3.sh
**NOTE** Be sure the permissions on mount_ext3.sh is rwxr-xr-x after you have changed it. If they are not, you are likely to get stuck in a bootloop.
Thanks a lot,just did as you said.
I open terminal emulator,
type: mount -o rw,remount /dev/null /system (enter)
type: chmod 644 /system/app/Superuser.apk (enter)
File permission for mount_ext3.sh is rwxr-xr-x
But when i open in text viewer,the bottom line is still chmod 4755.