I'm running version 16.0.4 server.
I was having some strange problems with lockups with one of the newer kernels so I wanted to downgrade and stick to one that I knew was going to be fine for me and not cause problems.
I came across this question (Kernel downgrade after update broke my system). I followed the advice in this answer.
He notes:
Please note, that also package
linux-image-generic-lts-raringwill be removed. That means that your kernel version will not be upgraded in future withapt-get upgrade. Only when you reinstalllinux-image-generic-lts-raringwill the kernel version get upgraded. So this is a permanent solution.
How can I reinstall linux-image-generic-lts-raring or so that I can get the latest kernel once again?
Currently when I run an apt-get update apt-get upgrade I get nothing. I'd like to update all of my packages to the latest versions again.
Here's the output of apt-cache policy linux-image-generic
linux-image-generic:
Installed: (none)
Candidate: 4.4.0.77.83
Version table:
4.4.0.77.83 500
500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
4.4.0.75.81 500
500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages
4.4.0.21.22 500
500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
After apt-get install linux-image-generic -> reboot the output of apt-cache policy linux-image-generic:
linux-image-generic:
Installed: 4.4.0.77.83
Candidate: 4.4.0.77.83
Version table:
*** 4.4.0.77.83 500
500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
100 /var/lib/dpkg/status
4.4.0.75.81 500
500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages
4.4.0.21.22 500
500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
Here's the output of Output of dpkg -l linux-image*:
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-=====================================================-===============================-===============================-===============================================================================================================
un linux-image <none> <none> (no description available)
rc linux-image-4.4.0-31-generic 4.4.0-31.50 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-53-generic 4.4.0-53.74 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-57-generic 4.4.0-57.78 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-59-generic 4.4.0-59.80 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-62-generic 4.4.0-62.83 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-63-generic 4.4.0-63.84 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-64-generic 4.4.0-64.85 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-65-generic 4.4.0-65.86 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-66-generic 4.4.0-66.87 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-67-generic 4.4.0-67.88 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-70-generic 4.4.0-70.91 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-4.4.0-71-generic 4.4.0-71.92 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-72-generic 4.4.0-72.93 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-75-generic 4.4.0-75.96 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-77-generic 4.4.0-77.98 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-31-generic 4.4.0-31.50 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-53-generic 4.4.0-53.74 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-57-generic 4.4.0-57.78 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-59-generic 4.4.0-59.80 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-62-generic 4.4.0-62.83 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-63-generic 4.4.0-63.84 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-64-generic 4.4.0-64.85 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-65-generic 4.4.0-65.86 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-66-generic 4.4.0-66.87 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-67-generic 4.4.0-67.88 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-70-generic 4.4.0-70.91 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
rc linux-image-extra-4.4.0-71-generic 4.4.0-71.92 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-72-generic 4.4.0-72.93 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-75-generic 4.4.0-75.96 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-77-generic 4.4.0-77.98 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-generic 4.4.0.77.83 amd64 Generic Linux kernel image
When I run apt-get update and apt-get upgrade it still shows zero updates available. I'm quite sure there should be updates available.
The removal of the package linux-image-generic-lts-raring (or it's equivalent) prevents your system from obtaining the latest version of kernel updates. In your specific case, running sudo apt-get install linux-image-generic will load the meta-package designed to install the lastest kernels for your distribution.
After the installation of this package, you should reboot and ensure that you are running the lastest version using the command uname -r, as you may have also pinned your kernel in a manner similar to How to skip kernel update?. You may have also set a specific kernel version to use as boot, in a manner similar to How do I set Windows to boot as the default in the boot loader?
Finally, the output of dpkg -l linux-image* indicates that you are carrying a lot of older kernel versions. This is not by itself a problem, but can cause issues if you have a separate /boot partition or limited disk space. If you have satisfied yourself that the kernel is operating properly and you are not having problems, please consider running sudo apt-get autoremove, as mentioned in How do I remove old kernel versions to clean up the boot menu? and How do I free up more space in /boot?
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