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My system crashed. When I rebooted the disk check reported errors. I asked it to fix the errors. My system will now not boot to login in graphics mode.

After the screen flashes I see 

saned disabled
edit /etc/default/saned

The system then stalls. I finally hit Ctrl+Alt+F1 and log in from TTY1. I then see messages:

[96.263452] systemd-logind failed to start unit user@1000.service unknown unit
[96.263892] Failed to start service unknown unit: user@1000.service

The /etc/default/saned file looks OK.

How should I restore the system to allow it to boot completely?

Fabby
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Robert Cahn
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2 Answers2

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The best you can do right now is:

  1. boot from a LiveCD,
  2. back-up all your data
  3. test whether your drives are OK
    • sudo apt-get install smartmontools
    • sudo smartctl --scan
    • For all devices that come up on the previous command to a sudo smartctl --all /dev/XdY where X and Y are the letters that come up in the previous step
  4. re-install.
    • Replace any drives that show a "fail"

Before you reinstall, have a look here so that this will not happen any more in the future, but that you might just restore a system back-up when something like that happens...

Community
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Fabby
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  • this is so upsetting. i don't even have any data on that one... but to redo the whole install will take forever. omg. balls. – gloomy.penguin Jul 05 '15 at 05:27
  • Expecially the "replace any bad drives" is the most important bit. Emphasis added after-the-fact.. – Fabby Jul 05 '15 at 08:28
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apt-get remove upstart

If it is ubuntu16.04 and you have installed upstart. Worked for me.

Melebius
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Himani Chawla
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