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I've run distro upgrade from 14.04 to 15.10 with the release image. I chose "erase the disk and install Ubuntu" installation. No errors during installation and I'm able to login in normally.

Eventually I will get this message:

fsck from util-linux 2.26.2
/dev/mapper/ubuntu--vg-root: clean 194728/13557760 files, 947832/54231040 blocks

It then dumps me back to the login page. Cycle repeats and repeats, but never boots me into the desktop.

When I boot into recovery mode, I can run fsck from there, and it gives me the same clean message. However, it does give me the message:

 "Error getting authority: Error initializing authority: Could not connect: No such file or directory (g-io-error-quark, 1)

Any ideas what's going on? I've re-run install a few times and get the same thing every time.

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  • What you say is not an "upgrade" but a re-install. You can upgrade from 15.04 to 15.10. From what you say you re-installed.Something different with different related things to check ;)
    – Rinzwind
    Oct 22, 2015 at 13:44
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    same error: askubuntu.com/questions/631362/… and askubuntu.com/questions/614198/… see if any of these 2 can help you fix this.
    – Rinzwind
    Oct 22, 2015 at 13:45
  • It's odd. I updated packages, and now I'm in the desktop. Oct 22, 2015 at 13:46
  • Glad to hear it fixed itself :D I wish all problems would fix them self :P
    – Rinzwind
    Oct 22, 2015 at 13:50

3 Answers 3

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I'll be honest, and I have no idea why this worked. I booted into recovery mode. Ran fsck. Then fixed broken packages (which downloaded 3 new packages). Resumed boot into the new image. It threw one error, uploaded the details and it's all good now.

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The fsck message is probably a red herring. You are probably just seeing typical boot noise from the console because there is an issue with your display drivers preventing the X server from starting a display manager.

Glad to hear you got it fixed though. If I had to guess, one of the broken/outdated packages was a binary display driver.

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I had same trouble after uninstalling a kubuntu-desktop on my ubuntu 15.10 laptop. try reinstall lightdm.

sudo apt-get install --reinstall lightdm
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  • I think --reinstall lightdm is not the solution , there may be another reasons. Oct 3, 2016 at 8:53

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