1, after the boot by e
2, Linux16 jump to the end of the trekking added rd.break console = tty1 press Ctrl + x
3,mount -o remount,rw /sysroot
4,chroot /sysroot
5,passwd
6, enter the new password, lose one
7,touch /.autorelabel
8,exit
9,reboot
10, boot with the new password