How to update a program installed using Gdebi ?

[automate-stuff]

I installed Emacs using Gdebi, the following two .deb files were installed :

emacs25-common*.deb
emacs25*.deb

if a new version becomes available(new updated versions of the .deb files mentioned above) then should i uninstall the old .deb packages then install the new ones or should I install the new.deb files on top of the older ones ?


Many Thanks

[Frogs Hair]

If the packages are not from the repository or seen as identical to existing packages you will have to manually update unless the option to update with the system was offered during installation. I see both packages in synaptic on 18.04, so no need to install from an outside source.

[automate-stuff]

I have these installed by manually finding the deb package for each:

emacs25-common*.deb
emacs25*.deb

Now these packages become available:

emacs26-common*.deb
emacs26*.deb

should I uninstall the 25s then install 26s or should I just install 26's on top of 25s(Without removing 25s) ?

[Frogs Hair]

The emacs26 packages are not in the repository so if you need them you'll have manually install them.

[automate-stuff]

I am not talking about repositories at all....I manually downloaded emacs25-common*.deb and emacs25*.deb from some websites and used gdebi to install them.....

now the 26s are available so i downloaded them manually too...

my question is: Should I just install 26s on top of 25s or should I remove 25s first and then install the 26s....

[again?]

You would need to uninstall emacs25 and emacs25-common first.
emacs25-common conflicts with emacs26-common.
Consider using this ppa https://launchpad.net/~kelleyk/+archive/ubuntu/emacs

Using the ppa this is the error i got when installing emacs25 then attemting to install emacs26.

Preparing to unpack .../emacs26-common_26.1~1.git07f8f9b-kk1+18.04_all.deb ...
Unpacking emacs26-common (26.1~1.git07f8f9b-kk1+18.04) ...
dpkg: error processing archive /var/cache/apt/archives/emacs26-common_26.1~1.git07f8f9b-kk1+18.04_all.deb (--unpack):
 trying to overwrite '/usr/share/emacs/site-lisp/subdirs.el', which is also in package emacs25-common 25.3~1.gite0284ab-kk1+18.04
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/emacs26-common_26.1~1.git07f8f9b-kk1+18.04_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

[Frogs Hair]

I am not talking about repositories at all....I manually downloaded emacs25-common*.deb and emacs25*.deb from some websites and used gdebi to install them.....

now the 26s are available so i downloaded them manually too...

my question is: Should I just install 26s on top of 25s or should I remove 25s first and then install the 26s....

I am aware of that as I wrote you'll have to install manually . see guber2 's post above the ppa might be a better option if it has been maintained consistently. I mentioned the repository because 25 was already there.