Problem Updating from 2.6 to 2.9

When trying to install lastest deb (2.9) I got some errors and it couldn't be updated (2.8.4 ==> 2.9). I couldn't install gdebi either so  I used dpkg.

I made a new clean install but errors persist.

I couldn't figure out how to solve this. Need help


 

sudo apt update
sudo apt install gdebi
then
uname -a
lsb_release -a

tommylight wrote:

sudo apt update
sudo apt install gdebi
then
uname -a
lsb_release -a


this is what i get 

 

Something wrong with your repository file, what is the error from
sudo apt update
?

Many thanks tommyligth,  I finally updated to 2.9 by using synaptic manager, and adding some repositories.
However I got this error message  (see Picture)  when trying to run a program, plus axes can´t be moved manually unless I restart linuxcnc.

I couldn´t figure out the cause, so far.
 is anyone willing to give some advice?