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I'm using Ubuntu Kylin, when I type:

uname -r

I got:

3.16.0-53-generic

And in my /boot:

abi-3.16.0-52-generic     initrd.img-3.16.0-52-generic  System.map-3.16.0-53-generic
abi-3.16.0-53-generic     initrd.img-3.16.0-53-generic  System.map-3.16.0-55-generic
abi-3.16.0-55-generic     initrd.img-3.16.0-55-generic  System.map-3.16.0-56-generic
abi-3.16.0-56-generic     initrd.img-3.16.0-56-generic  vmlinuz-3.16.0-52-generic
config-3.16.0-52-generic  lost+found                    vmlinuz-3.16.0-53-generic
config-3.16.0-53-generic  memtest86+.bin                vmlinuz-3.16.0-55-generic
config-3.16.0-55-generic  memtest86+.elf                vmlinuz-3.16.0-56-generic
config-3.16.0-56-generic  memtest86+_multiboot.bin
grub                      System.map-3.16.0-52-generic

when I type apt-get upgrade, I got:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
linux-generic-lts-utopic linux-headers-generic-lts-utopic
linux-image-generic-lts-utopic
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.

How can I get my Ubuntu upgraded to 3.16.0-56?
Why is it not automatically getting upgraded? Thank you.

1 Answer 1

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It didn't upgrade by the normal command because Ubuntu is being cautious. If you upgrade using this command, some unnecessary dependencies will be removed and sudo apt-get upgrade doesn't upgrade by deleting anything.

To force the kernel upgrade, type the following:

sudo apt-get dist-upgrade
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  • Thanks for your answer. I see somewhere that this command possibly cause some problem. If i don't do this upgrade, will my system be updated in future in a safe way? Dec 28, 2015 at 8:52
  • Well, first of all it doesn't, I do it all the time, as soon as a new kernel is released. But if you are being cautious then may wait for the next Ubuntu release and then update the kernel alongwith the OS.
    – Raphael
    Dec 28, 2015 at 8:54
  • @user4676257 basic answer should be yes, once newer kernel comes out you should be able to get it with sudo apt-get update && sudo apt-get upgrade . For the most users newer kernel doesn't bring much interest, so I wouldn't worry about that too much. But if you insist , you could install newer driver manually. For instance , I have manually installed 4.1 kernel. But really , I wouldn't worry about that too much Dec 28, 2015 at 9:20
  • @Serg - this is a doubt. If I don't upgrade it through sudo apt-get dist-upgrade it doesn't upgrade to new kernel right. I am asking cause it never did in my case.
    – Raphael
    Dec 28, 2015 at 9:22
  • @Raphael It does upgrade to newer kernel with regular sudo apt-get upgrade. There should be a reason why it didn't upgrade. Perhaps you have an application that depends on that kernel ? Dec 28, 2015 at 9:24

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