We recently turned on an Ubuntu machine which has been off for a while. It booted up ok, but I could not logon to the machine even I knew the password. After I entered the password, the screen flashed once and back to the login screen. If I entered the password again, same thing happened again.
I googled the problem and found that it could be caused by the permissions of files in your home directory. The other possible cause is the package conflict.
This is what I did to get the machine back to normal
- Shutdown the machine.
- Turn the machine on. At the grub screen select Advanced Options for Ubuntu and press enter.
- At the next screen, select the entry with (recovery mode) and press enter.
- Select dpkg to repair broken packages and press enter. Wait until the process is done.
- Select root to drop to root shell prompt and press enter.
- Enter the following commands. (replace the user_name with your user name)
chown -R user_name:uer_name /home/user_name
apt update
apt upgrade
apt autoremove - Finally enter reboot to reboot the machine.
Does this fix your infinite login loop problem? Share your experience in the comment section.
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