虽然越狱失效了,但是越狱产生的文件还在,所以要在越狱没失效前把一些文件删掉
rm -rf /var/lib/cydia
rm -rf /var/cache/apt
rm -rf /var/lib/apt
rm -rf /Library/MobileSubstrate
rm -f /bin/bash
rm -f /bin/sh
rm -f /usr/sbin/sshd
rm -f /usr/libexec/ssh-keysign
rm -rf /etc/apt
rm -f /etc/ssh/sshd_config
rm -rf /Applications/Cydia.app