Errors while rooting Droid X?

[ZduneX25]

If you get a blank screen for the Superuser app for some reason or “Permission denied” error, you can re-install the su file like this:

adb shell
rootshell
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
rm /system/bin/su
cp /sdcard/su /system/bin/su
chmod 4755 /system/bin/su

Then try:

exit
su

You should get a Superuser app pop-up on your phone now.

This is what happened to me while I was rooting my own Droid X but by erasing the su app and copying it again solved it.




Source: Droidx.net