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Out of the blue, I can no longer log in to my lubuntu, single user. I have no recollection of intentionally changing my password. I’ve been using that same password for a long time, so I well-practiced at remembering and typing it. I’ve checked to insure that the caps lock is disengaged. I’ve waited overnight to retry logging in, just in case lubuntu has a feature to ignore login attempts after a series of failed login attempts. Those delayed login attempts also failed.
I do remember that my prior session with a successful login ended with a unresponsive idle screen. The session became unresponsive when I left it idling for a day or more without my interacting with it. The graphic on the screen no longer moved or changed the geometric shapes. I shrugged off this situation and turned off the computer. (I had no other option since keystrokes were ignored and I could not issue the proper shutdown commands.)
I cannot rule out that I inadvertently changed the password, but I really, really, REALLY doubt it. I’ve had previous hangs where I could simply turn off the computer and later re-boot it successfully.
I did try to login from the terminal prompt, having entered the control-alt-f4 key sequence. This also was rejected.
So, what are my options of -
- Restoring my host to working order?
- And yeah, I don’t have a backup of my data. Can I re-install without over-writing the data?
- Failing that, can I use a ‘live’ session to reach the data and do a proper backup before a reinstall?
- Will I have ownership conflicts of datafiles, if I can back them up?