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webman

Member

Registered: 2022-08-27

Posts: 68  

confusion about repository content

Hi!

Do to the fact, that very promiment (and good) packages are not in the repositories, I tried to install
'snap(d)', where "everyone" told, it is in debian(11/12/13). I cannot find it for daedalus.
I have this repos:
- main
- updates
- proposed-updates
- backports,
all for daedalus!

But i see: "snap - location of genes from DNA sequence with hidden markov model", uupps!

Update, my sources.list is this:

deb http://deb.devuan.org/merged daedalus main non-free-firmware non-free contrib
deb http://deb.devuan.org/merged daedalus-updates main non-free-firmware non-free contrib
deb http://deb.devuan.org/merged daedalus-security main non-free-firmware non-free contrib
deb http://deb.devuan.org/devuan daedalus-proposed-updates main
deb http://deb.devuan.org/merged daedalus-backports main non-free-firmware non-free contrib

The error, I am getting is the following, with a suspect message:

$ apt install snapd
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package snapd is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'snapd' has no installation candidate

Any help is welcome!

Thanks,
Manfred

Last edited by webman (2026-11-10 22:54:13)

Altoid

Member

Registered: 2017-05-07

Posts: 2,140  

Re: confusion about repository content

Hello:

Seems you are looking for a package present in the Debian repositories but not in the Devuan repositories.
ie: [snapd] and not [snap]. <-  the DNA sequence with hidden markov mode application.

All official Devuan packages are sourced from the Debian repositories as long as they can be used directly and without intervention from the Devuan devs.

Otherwise, they are sanitised of their reliance on [systemd] and only then made available for installation.
If that is not possible, they are banned from the Devuan repositories.

See the list here.
You will find [snapd] there as it depends on [systemd].

That said, if a specific package is not in the Debian repositories, you will not find it in the Devuan repositories.

Best,

A.

webman

Member

Registered: 2022-08-27

Posts: 68  

Re: confusion about repository content

Hi !

Thanks for your reply.

Note, yes, I tried snap and snapd ....
I understand the reason now.
All together (see below), it costs me a day.
The nomacs .deb file does not install and the flatpak version requires additional changes
to the system, which I denied, snap was my last hope.
The other half of the whole thing is, that I didnt find any image-viewer that is able to use
drap&drop and cut&paste for images to the clipboard (which I know from debian(-buster?)),
that nomacs can. Have an open question on this in the xfce forum ....

Regards,
Manfred

Altoid

Member

Registered: 2017-05-07

Posts: 2,140  

Re: confusion about repository content

Hello:

Thanks ...

You're welcome.

... tried snap and snapd ...

At least you sorted out the repository confusion.

Best,

A.

RedGreen925

Member

Registered: 2024-12-07

Posts: 317  

Re: confusion about repository content

The nomacs .deb file does not install and the flatpak version requires additional changes
to the system, which I denied, snap was my last hope.
The other half of the whole thing is, that I didnt find any image-viewer that is able to use
drap&drop and cut&paste for images to the clipboard (which I know from debian(-buster?)),
that nomacs can.

I fail to see what the problem is the nomacs program install just fine here.

root@9600k:~# apt install nomacs
Installing:                     
  nomacs

Installing dependencies:
  libquazip1-qt6-1t64  nomacs-l10n

Summary:
  Upgrading: 0, Installing: 3, Removing: 0, Not Upgrading: 0
  Download size: 1,868 kB
  Space needed: 9,346 kB / 26.2 GB available

Continue? [Y/n] y
Get:1 http://gnlug.org/pub/devuan/merged excalibur/main amd64 libquazip1-qt6-1t64 amd64 1.4-1.1+b2 [90.6 kB]
Get:2 http://gnlug.org/pub/devuan/merged excalibur/main amd64 nomacs amd64 3.21.0+dfsg-2 [1,349 kB]
Get:3 http://gnlug.org/pub/devuan/merged excalibur/main amd64 nomacs-l10n all 3.21.0+dfsg-2 [428 kB]
Fetched 1,868 kB in 1s (1,933 kB/s)  
Selecting previously unselected package libquazip1-qt6-1t64:amd64.
(Reading database ... 348066 files and directories currently installed.)
Preparing to unpack .../libquazip1-qt6-1t64_1.4-1.1+b2_amd64.deb ...
Unpacking libquazip1-qt6-1t64:amd64 (1.4-1.1+b2) ...
Selecting previously unselected package nomacs.
Preparing to unpack .../nomacs_3.21.0+dfsg-2_amd64.deb ...
Unpacking nomacs (3.21.0+dfsg-2) ...
Selecting previously unselected package nomacs-l10n.
Preparing to unpack .../nomacs-l10n_3.21.0+dfsg-2_all.deb ...
Unpacking nomacs-l10n (3.21.0+dfsg-2) ...
Setting up libquazip1-qt6-1t64:amd64 (1.4-1.1+b2) ...
Setting up nomacs (3.21.0+dfsg-2) ...
Setting up nomacs-l10n (3.21.0+dfsg-2) ...
Processing triggers for desktop-file-utils (0.28-1) ...
Processing triggers for hicolor-icon-theme (0.18-2) ...
Processing triggers for libc-bin (2.41-12+deb13u4) ...
Processing triggers for man-db (2.13.1-1) ...
Processing triggers for mailcap (3.74) ...

Edit: Now I check closer I see you are on the prior version of the OS, just what is the output of the error when installing?

Last edited by RedGreen925 (Yesterday 03:10:51)

webman

Member

Registered: 2022-08-27

Posts: 68  

Re: confusion about repository content

Hi !

Thanks for your reply.
My mentioning an error happens to directly install the .deb file
(dont remmeber that's source at the moment).
For daedalus, nomacs is not ins the repository ....

Regards,
Manfred

RedGreen925

Member

Registered: 2024-12-07

Posts: 317  

Re: confusion about repository content

Then give the AppImage a try, you can download it here.

https://nomacs.org/docs/getting-started/installation/

Make it executable with.

chmod +x /path/to/nomacs-linux-x86_64.AppImage

In a Terminal window then a double click on the .AppImage it should just start it up. If wanting it in the menus then go here.

https://packages.debian.org/trixie/nomacs

To download the AMD64 package and extract the package then the data file contained in it. There you will find the .desktop file needed in the /usr/share/application directory and the icon in /usr/share/icons directory. Edit the .desktop file to change the.

Exec=nomacs %f

To

Exec=/path/to/nomacs-linux-x86_64.AppImage %f

And the

Icon=org.nomacs.ImageLounge

To

Icon=/path/to/org.nomacs.ImageLounge.svg

I put them in the XDG specified default directories used for user installed file of.

/home/username/.local/share/applications/
/home/username/.local/share/icons/hicolor/scalable/apps/

The first being the location of the edited .deesktop file, the second the location for the .svg file of the scalable logo file. Then with any desktop that respects the standard specification you will have it in the menu to use any time you want.