Local Root Access

less than 1 minute read

Description:

I’ve had a couple instances where I went to sudo su and it would say I’m not in the sudoers.

To Resolve:

  1. logout

  2. login as root

  3. type: usermod -a -G wheel (username)

  4. Then exit and log back in as your user.

  5. If you can’t login as root:

    • Reboot. You’ll be given 5 seconds at the boot menu to select the operating system kernel to boot into.
    • At the boot menu, press e to edit the existing kernel (Core).
    • In the boot grub menu select option to edit. Select Option to edit (e)
    • Go to the line of Linux 16 and change ro with rw init=/sysroot/bin/sh
    • Now press Control+x to start on single user mode.
    • Now access the system with this command - chroot /sysroot
    • Reset the password - passwd root
    • Update selinux information - touch /.autorelabel
    • Exit chroot - exit
    • Reboot your system - reboot
    • Now do steps above to give another user sudo rights as it’s best practice to not use root directly for anything except for tasks like these.

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