Recovering root user password in CentOS or RHEL 7
What if you forget root user password? RHEL/CentOS 7 has a way to recover root user password, but this will need downtime of your linux host. To recover your root user password follow below procedure as shown in screenshots: Step 1 : Reboot host, come to GRUB screen and select Kernel without "rescue" option: PRESS "e" Step 2 : Scroll your cursor down till you see line starting from " linux16 ". Come to the end of line after " UTF-8 " give a space and write " rd.break ": PRESS "CTRL + x", this will interrupt the boot process and leave you to the shell prompt : Step 3 : Once you come to shell prompt, remount "/sysroot" with "rw" permission i.e. read/write and then chroot to "/sysroot" directory: # mount -o remount,rw /sysroot/ # chroot /sysroot/ Step 4 : Now we can go ahead and reset "root" user password using "passwd" comm...