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After running:

sudo apt-get update && sudo apt-get dist-upgrade

And upgrading my kernel as well as some other stuff and then running this twice with a reboot after each running:

sudo apt-get autoremove && sudo apt-get autoclean

I got this error the second time I ran it:

nk /vmlinuz.old is a damaged link
Removing symbolic link vmlinuz.old
 you may need to re-run your boot loader[grub]
The link /initrd.img.old is a damaged link
Removing symbolic link initrd.img.old
 you may need to re-run your boot loader[grub]

What does this mean and do I need to do anything about it?

OS Information:

Description:    Ubuntu 15.04
Release:    15.04

Kernel Version Information:

3.19.0-20-generic
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10

Run

sudo update-grub

If there is no warning shown, there is no problem.

If you reboot now, grub might not find the kernel.

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6
  • The output of that command was Generating grub configuration file ... Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported. Found linux image: /boot/vmlinuz-3.19.0-20-generic Found initrd image: /boot/initrd.img-3.19.0-20-generic Found memtest86+ image: /memtest86+.elf Found memtest86+ image: /memtest86+.bin done , so does the warning thing count as an error? Could you also please include in your answer why this sort of thing can occur and what to do if grub cannot find the kernel. – user364819 Jun 11 '15 at 11:20
  • Hello, there are many possible errors (e.g. no space left). There is no need to worry about the Warnung, everything should be ok now. – davidbaumann Jun 11 '15 at 11:29
  • 2
    What is a "Warnung"? Is that like nuns at war or something? – user364819 Jun 11 '15 at 11:34
  • Read on here: bugs.launchpad.net/ubuntu/+source/grub2/+bug/1258597 A warning means: "something is wrong, but it doesn't make any problem" – davidbaumann Jun 11 '15 at 15:49
  • "Warnung" was auto correct, I wanted to write "warning". – davidbaumann Jun 11 '15 at 15:51

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