This didn't work for me it just spammed
chmod: Unable to change file mode on /: Operation not permitted
chmod: Unable to change file mode on /home: Read-only file system
chmod: Unable to change file mode on /usr: Operation not permitted
chmod: Unable to change file mode on /usr/bin: Operation not permitted
chmod: Unable to change file mode on /usr/bin/ptargrep5.30: Operation not permitted (please help)