OCI: Unable To Switch to root User from opc User

Applies To:

Oracle Cloud Infrastructure

Linux OS

Symptoms:

Can't switch from opc user to root user. sudo(8) fails with: "sudo: /bin/sudo must be owned by uid 0 and have the setuid bit set".

[opc@xxxxxx ~]$ sudo su –

sudo: /bin/sudo must be owned by uid 0 and have the setuid bit set

[opc@xxxxx ~]$ ls -l /bin/sudo

-rwxr-xr-x. 1 opc root 191040 Feb 14 10:11 /bin/sudo

Cause:

To execute with elevated privileges, sudo(8) needs to be owned by the root user and have the stickybit (i.e. setuid bit) set.

Solution:

• Get into single user mode by editing the GRUB2 boot entry by appending "