Break Root Password

on login while selecting redhat we face Rescue kernel
before it starts loading press e
move to line

linux ($root)/vmlinuz...

press end key - > move to end of line
write, to stop selinux - > selinux stops things against security

enforcing=0 rd.break

press ctrl + x - > it starts the system
it shows

Generating "/run/initram..."

screen shows is

switch_root:/#

then write and enter

mount -o remount,rw /sysroot/         # this command is to be written as it is

then write

chroot /sysroot/          # tab works well in this shell

you will be logined as root in sh shell
passwd root
change password as you wish
exit - > takes to switch_root
exit - > restart the system (wait for some time)
IMPORTANT - > now if system is rebooted by
to check security content of all files
```
  ls -ldZ /etc/shadow
```
unlabelled means Selinux will not allow to use system
password of root will be seen in shadow file in /etc/shadow
restorecon /etc/shadow command to restore security of file
rerun to check

 ls -ldZ /etc/shadow

to restart the system in graphical mode, write startx