I've lost the access key on my Oracle Cloud Compute VM where I run an Ubuntu 22.04. I am able to access the service console but what is described here is relevant only for Oracle Linux (I presume) https://www.ateam-oracle.com/post/i-get-permission-denied-when-i-ssh-to-my-oracle-cloud-infrastructure-compute-instance, therefore I cannot bypass the login screen.

The Ubuntu image is a standard Canonical image, so the ubuntu user can't be logged on with (there is no password that was set).

Any ideas, suggestions?

Appreciate in advance.

CodePudding user response：

Even tried this https://k21academy.com/1z0-1072/recover-ssh-keys-in-compute-instance/, which is smart, however I still get:

ubuntu@130......: Permission denied (publickey).

CodePudding user response：

Mixed it with these instructions https://www.maketecheasier.com/reset-root-password-linux/ and the Oracle console connection

Basically I've used chroot to be able to change the password of the /mnt mounted OS, then used the Oracle console to log in, and how I figure out much more easily what is wrong with the keys!