Default [SOLVED]

SOLVED, cant find the delete button
I am not a big expert with software and stuff, but I try rooting my lg optimus 4x hd and all it says:
DON'T TOUCH THE DEVICE OR UNPLUG WHILE ROOTING!
PUSH FILES
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
failed to copy 'su' to '/data/local/su': Permission denied
failed to copy 'Superuser.apk' to '/data/local/Superuser.apk': Permission denied

Unable to chmod /data/local/su: No such file or directory
Unable to chmod /data/local/Superuser.apk: No such file or directory
failed on '/data/local/tmp' - Permission denied
link failed File exists
mount: Operation not permitted
mount: Operation not permitted
/system/bin/sh: can't create /system/app/Superuser.apk: Read-only file system
/system/bin/sh: can't create /system/xbin/su: Read-only file system
Unable to chown /system/xbin/su: No such file or directory
Unable to chmod /system/xbin/su: No such file or directory
Unable to chmod /system/app/Superuser.apk: No such file or directory
rm failed for /data/local/tmp, Permission denied
failed on '/data/local/tmp.bak' - No such file or directory

REBOOT
Can someone help me?
btw, I tried the root and the root-nobusybox