I use Ubuntu 18.04 LTS with Xfce4. I have a very low-end computer and the storage size is very low, only 60GB. I almost stay at a few 100MB from the limit.
But now, my computer lagged so I forced to reboot, then I got the endless login loop thing. I pressed CTRL+ALT+F3 and I ran the command df -h
I got as result that my disk was full at 100% and I got no byte left.
Then I tried to remove things, I am pretty sure I removed over than 300MB but it still says that I got 0 byte left. I tried it with different users but nothing works.
I tried to change the permissions of .Xauthority .ICEauthority and /tmp but these perms are correct.
Then I tried to install "lxdm" but I couldn't because I don't have the space left.
Please help me, I don't know what to do I cannot use my computer. : /
Thanks in advance.
About what was taking the storage, it was the data from the snap package "multipass" which I removed, but the data was still there. 10GB of data for a package I never used! I don't understand where it's coming from xD
To solve the issue tho, it wasn't just the "0 byte left" that was creating the login loop. I don't know the source of this issue. But I simply backup everything and install Xubuntu instead.
Thanks to everybody who answered, these are still interesting things to know : )