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Recently, I had a kernel panic and had to do a hard shutdown. On the next boot, I updated Ubuntu 14.04 using sudo apt-get update .

Following that I rebooted the system using sudo reboot as described in the answer. Generally, I reboot/restart using the GUI - clicking the shutdown button and choosing reboot/restart. Now I have been waiting for last 15 minutes and Ubuntu is still booting.

That makes me wonder if there is a difference between rebooting using the terminal vs rebooting using the GUI. My next question is should(can) I interrupt Ubuntu if it has been trying to reboot for a long time? If yes, then how (kindly mention all the required steps)?

Helpful links - Is there a difference between reboot, init0, etc

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PallavBakshi
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  • sudo apt-get update won't upgrade you to 14.04. There's no difference between reboot and shutdown, except for the final action. The system may take a little longer to boot after an upgrade, do to housekeeping issues, but 15 minutes is way too long. Try hitting the Esc key and see if it brings you to a text screen where you can determine what it's doing. – heynnema Jan 24 '17 at 23:00
  • I didn't upgrade and didn't intend to. My question is concerned about rebooting with terminal vs GUI. – PallavBakshi Jan 24 '17 at 23:01
  • But your first sentence says " I updated Ubuntu 14.04 using sudo apt-get update" and I was letting you know that command doesn't update Ubuntu, it just updates software databases. And reboot does a shutdown -r and shutdown does a shutdown -h so they're basically the same, as I said. Shutdown/reboot in GUI vs cli is no different. Did you try the Esc key to see where shutdown/reboot is hanging? – heynnema Jan 24 '17 at 23:15
  • Thanks for the info! I hadn't plugged in my laptop so it simply turned off by itself even though I didn't want that to happen. Next time I booted it, it was absolutely fine. :D – PallavBakshi Jan 25 '17 at 05:31

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