Not sure where to post this. Updating from Linux Mint 19.3 cinnamon to Linux Mint 20 Ulyana on my HP Pavilion 15 n044nr 64 bit. It downloaded the new files and asked me for my password then kept telling me it could not be found. I restored and my password works fine.
Any ideas?

It kept telling you that your password could not be found?

Do you have the exact error message?

1 members found this post helpful.

No, but when I entered my password the response was "Not Found"

I'm not very familiar with Mint - so hopefully someone else will come along and know more than I. I'm mostly using Ubuntu, specifically Lubuntu.

If I recall correctly, Mint has a user account and assigns the user to the sudo group. It also has a root account with a password, where it diverges with Ubuntu. (Default desktop Ubuntu doesn't have a root password.) The root password is the same as the user's password at the time of installation. If you've changed your user password since installation, the root password will not have changed. It will be the same password you created during installation for your user.

Maybe, and here is where I'm unsure, the upgrade requires root and that password is maybe no longer the same as your user password. Why it'd require root to upgrade is not something I can even start to guess at, but maybe that's where the problem is.

Thanks. I am going to try to re-do the entire process tomorrow.

If you have a second device, keep this page open on that device and update this page with exact copies of error messages. There's a bunch of smart people here who can help, but they need good information in order to help you. They need good, specific, information for a number of reasons - but the primary one would probably be time. With exact messages, and knowing what commands you gave, they can troubleshoot faster and with less guesswork and duplicated effort.

Thank you. I started to re-install today, but realized that I had missed a step (a page of the directions were misplaced from yesterday).
I was going to re-do everything tomorrow, but have to go out of town. I will try again from scratch as soon as I can and let you know where I screwed up. Thanks for all of those of you who have tried to help. I haven't had problems since I started with 13.something, so am sure it is me and not the system. Where are the update files I downloaded stored?