How to upgrade the kernel to the latest via backports sources.

You need to add extra backports sources tou your sources list:

echo "deb http://deb.devuan.org/merged <my_dist>-backports main contrib non-free" >> /etc/apt/sources.list

according to your OS change <my_dist> with ascii or beowulf

apt update

To know how kernel are installed:

uname -a

To search a newest kernel:

apt search linux-image

In the output we will see a lot of kernels, but we have interest to the latest, at this time the kernel 5.7:

Lets do it and install the latest kernel:

apt install linux-image-5.7.0-0.bpo.2-amd64 linux-headers-5.7.0-0.bpo.2-amd64 -t buster-backports -y

A reboot is needed to boot on the new kernel:

reboot

We can check now:

uname -a

The output:

Linux my-pc 5.7.0-0.bpo.2-amd64 #1 SMP Debian 5.7.10-1~bpo10+1 (2020-07-30) x86_64 GNU/Linux

let's take it a step further by removing the old kernels, in general it is advisable to keep 2 kernels in case there is a problem with one of them.

To view the installed kernel:

dpkg --list 'linux-image*'

In the output you will see how kernel you can purge, in my case i keep the 4.19 and the 5.7 and purge the 5.6.

Example to purge a kernel:

apt autoremove --purge linux-image-5.6.0-0.bpo.2-amd64 linux-headers-5.6.0-0.bpo.2-amd64 -y

We need to upgrade the grub with the changes we made:

update-grub2

After an reboot in the boot menu, select advanced options, you can also check the kernels who are usable.

In case if you have a graphic card using open firmwares you'll need to update your kernel with it, just check this tutorial

hello to you users of the freedom linux!

After installing Cinnamon as an office environment you risk having a hiccup with the network manager who indicates that the Wired on / off switch is unmanaged.

Nothing simpler, it happens by commenting on arguments in the conf interfaces file.

We open a terminal window as root then insert the lines below:

nano /etc/network/interfaces

Then comment on these 2 lines as follows:

#allow-hotplug ****
#iface **** inet dhcp

Adapt the asterisks according to the name of your network interface, if you do not know the name of this one:

ip link show

Choice 2 will tell you

And finally restart the service:

/etc/init.d/network-manager restart

And here is the incident resolved