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otpabu
Asked: 2018-09-05 23:10:49 +0800 CST

Ubuntu Server kernel does not upgrade

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I'm using Ubuntu Server 18.04. If I run:

dpkg --list | grep linux-image

It says I have the following kernels:

rc  linux-image-4.15.0-20-generic         4.15.0-20.21
rc  linux-image-4.15.0-22-generic         4.15.0-22.24
rc  linux-image-4.15.0-23-generic         4.15.0-23.25
ii  linux-image-4.15.0-24-generic         4.15.0-24.26
rc  linux-image-4.15.0-29-generic         4.15.0-29.31

However, if I check the current kernel version with:

uname -r

It says I'm using:

4.15.0-24-generic

So, how do I update the kernel to 4.15.0-29? I've tried:

sudo apt update && sudo apt dist-upgrade -y

But it says there are no updates available.

server updates upgrade kernel

1 Answers

  1. Best Answer

    This output

    rc  linux-image-4.15.0-29-generic         4.15.0-29.31

    means that the package linux-image-4.15.0-29-generic is removed (r) but the configurations files are still installed (c).

    It was probably removed manually so apt-get won't reinstall it on upgrade.

    You can simply do

    apt-get install linux-image-4.15.0-29-generic

    to re-install it, or better try reinstalling the linux-image-generic package which depends on the most recent kernel:

    apt-get install --reinstall linux-image-generic
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