I am running 17.04.

After upgrading the kernel, I usually run Ubuntu Cleaner to remove old kernels.

After the old kernels are removed, the system always requests a reboot. I suspect that it has to do with the grub loader. Is there anything I can run to avoid this reboot, since I will already be running the new kernel and there should be no urgency?

  • 1
    Do you also run sudo update-grub? Oct 10, 2017 at 12:07
  • I do not, yet. I'll try that the next time it happens.
    – Ralph
    Oct 10, 2017 at 12:07
  • 1
    There is an excellent kernel removal utility here. Oct 10, 2017 at 13:29
  • I am currently running 4.10.0-37. Can I safely delete the other kernels from /boot (4.[28].*)?
    – Ralph
    Oct 10, 2017 at 13:39
  • Look at the files /var/run/reboot* - packages requiring a reboot usually leave their names there.
    – waltinator
    Oct 10, 2017 at 23:34


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