N: Missing Signed-By in the sources.list(5) after running '$sudo apt-get update'

I would go for the first option you offer: "You could delete all the Stuff from sources.list.d and then we would have to manually add back the Zorin Stuff. Which means, I would give You the Files, You have to create with the Content and You would have to create them. When done, You would have to add again the Repo's that You need."

Okay, we could do that. But even with this, I would strongly recommend to save Your Data and prepare a Bootstick with Zorin on it just for the Case that something goes wrong.

Because it is late here, I would give You Instructions tomorrow. We will have to do a lot in Terminal to hopefully get this to a good End.

Sure. No problem. Thx for prompts replies anyway! Appreciated.

Meanwhile I will try with some LLM and I update tomorrow what I have achieved.

Okay, then let's start:

First, we should svae the Files just in Case. Create a Folder on Your Desktop and name it ... don't know ... name it simply b or use what suits You. the Name has now Meaning. It is only to have a Folder Name. Then open the Terminal and type:

sudo cp /etc/apt/sources.list.d/* ~/Desktop/b/

The * makes that every File from this Folder will be copied. When done, check the Folder if the Files are really in there. Then, You have to delete the Files in sources.list.d. To do that, type the Terminal:

sudo rm /etc/apt/sources.list.d/*

The * makes that every File in the Folder will be deleted. You can check if the Files are deleted when You open the File Manager and in the Path Bar at the Top type /etc/apt/sources.list.d/ and press Enter. Then, You should see an empty Folder.

Now, You have to create the Zorin Files new. We do that one by one. Open the Terminal and type

sudo nano /etc/apt/sources.list.d/zorin.list

press Enter, type in Your Password and You get a blank black Field. That is the empty File. There, You put in that:

deb https://packages.zorinos.com/stable noble main
# deb-src https://packages.zorinos.com/stable noble main

deb https://packages.zorinos.com/patches noble main
# deb-src https://packages.zorinos.com/patches noble main

deb https://packages.zorinos.com/apps noble main
# deb-src https://packages.zorinos.com/apps noble main

deb https://packages.zorinos.com/drivers noble main restricted
# deb-src https://packages.zorinos.com/drivers noble main restricted

deb https://packages.zorinos.com/premium noble main
# deb-src https://packages.zorinos.com/premium noble main

Then press ctrl+o to save, Enter to confirm and ctrl+x to exit. Then type in Terminal

sudo nano /etc/apt/sources.list.d/zorinos-ubuntu-apps-noble.sources

press Enter, type in Your Password and there You put in this:

Types: deb
URIs: https://ppa.launchpadcontent.net/zorinos/apps/ubuntu/
Suites: noble
Components: main
Signed-By: -----BEGIN PGP PUBLIC KEY BLOCK-----
 .
 mQINBFfeyCMBEADEMOIi00+wAfIUUu9XKQOdZq2hHmWk04WD8b2oJDH8t0M40oRo
 OvZrNUcCM/XzwCbuJvcV2+I0LRjWyhIs8tfKknCOe56lV0Hj3tyZzSEoBG2d8eO9
 TZxePAytCMKRd78WSdcRFGl1OcbhCvxcLcPoPmuOOiA+2Twpo9B9CwuhbySg19hK
 OjO31AtX4P4s94cxl3stKOutkItzmMnac3LqYlTvAyjoxgn5p3R8CwLglHHuhXBo
 Ewhb0Crl+nRZCNL0xaV6bFU3CZ0ppn7Btn9VNyH2Fv2sDrERUgY0f8qAjSK2Cshv
 QB/m9flB3xbFA19nCZRUqj1hBkHFNN8kTPug5cb0tmuVVoCK3So4X1N6ooVTuT3V
 pkjs0gQmyUT9IPxbpwqt0MEwwFb8mHzQyChzyClAfQkdR/iLRX/ZEA/McWFmAhWr
 eIbksrKmiRu6WngoEjBa1L+kQwKKzWb4OKV4fOb0SEAMsQJYnbdaTb0ykIbgLfto
 3WXFriYHa0SsK4h2ePnyx2ZvI/aWJ38skKgdfsXq/fjImSi5rC+lvHEM1gG27emi
 fZgSqhHsJgL04RVp7WM0MU48D2FKrjsElY24VOFMg3xXo8+mS71bakb9FMOStebQ
 fY4kp1dIM4K1sQl1fSfMsPEguN2iA6BlFXjhFruXQCJBTvbaLQlOMKHAMwARAQAB
 tBpMYXVuY2hwYWQgUFBBIGZvciBab3JpbiBPU4kCOAQTAQIAIgUCV97IIwIbAwYL
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 DkQydp/nA3xcWe7gtNgi2US8nRxz72lxqkPGjqErlHgOTU/jJcs15klbl685eMxi
 YHWunNRXC0gcr50AphffjsH0dAiTAM9D88vQFrdofohkeJKpGget57K/dq+vjp6R
 hQh4QiBa5AD4p62WrevB90TvU+mxpapxX43+chs/bYnjTpVsTj5vzdjhPMNuBYNU
 9m4ZacQU6URvzRAfvU0/yQYLKyDTQMPo/qzQZtFs0KfdgPSMCK6t7gelO/KfN3da
 IJV3iICLFU9sQ1gfRoyNxsS5zQu/iUDtzy7qwSXZ7ZaFcdTsg9v1lQ95GcqJ5lW/
 BHsS4pHPreq0mqJCS1XeekqkuGGqAKopJj4G1Lw+cnQnzJDyDvK3lLhOza/Yyzc/
 WLHhiG3O2fk/1+54Xc5gIgyYTmLg4f0UqeI30Qsjbe+mUSFfHTl9JzNzpqhbOBTK
 NegYtPT78cKv15On4yP2dq9nxvgyPQTw54UYSvBLjiOrS9KrMfW8OK5488bs+deG
 DkSd/Y02twECg6SqW220a9VcZo51Kah1kbUdL9NdqZ4PDR3e7AQPcFaEOKc1CLg1
 omKPV+cJvstz7w0YZaubpCsg7PPFooR5gnOOGrU42Vdcj2IfscoNbGzCuoTNz+H4
 SMYeyjkJoD7iSt813oljpoHT3q8FGfk=
 =6RrC
 -----END PGP PUBLIC KEY BLOCK-----

When done, press ctrl+o to save, Enter to confirm and ctrl+x to exit. Then type in Terminal

sudo nano /etc/apt/sources.list.d/zorinos-ubuntu-drivers-noble.sources

and press Enter, type in Your Password and in the empty File put that:

Types: deb
URIs: https://ppa.launchpadcontent.net/zorinos/drivers/ubuntu/
Suites: noble
Components: main
Signed-By: -----BEGIN PGP PUBLIC KEY BLOCK-----
 .
 mQINBFfeyCMBEADEMOIi00+wAfIUUu9XKQOdZq2hHmWk04WD8b2oJDH8t0M40oRo
 OvZrNUcCM/XzwCbuJvcV2+I0LRjWyhIs8tfKknCOe56lV0Hj3tyZzSEoBG2d8eO9
 TZxePAytCMKRd78WSdcRFGl1OcbhCvxcLcPoPmuOOiA+2Twpo9B9CwuhbySg19hK
 OjO31AtX4P4s94cxl3stKOutkItzmMnac3LqYlTvAyjoxgn5p3R8CwLglHHuhXBo
 Ewhb0Crl+nRZCNL0xaV6bFU3CZ0ppn7Btn9VNyH2Fv2sDrERUgY0f8qAjSK2Cshv
 QB/m9flB3xbFA19nCZRUqj1hBkHFNN8kTPug5cb0tmuVVoCK3So4X1N6ooVTuT3V
 pkjs0gQmyUT9IPxbpwqt0MEwwFb8mHzQyChzyClAfQkdR/iLRX/ZEA/McWFmAhWr
 eIbksrKmiRu6WngoEjBa1L+kQwKKzWb4OKV4fOb0SEAMsQJYnbdaTb0ykIbgLfto
 3WXFriYHa0SsK4h2ePnyx2ZvI/aWJ38skKgdfsXq/fjImSi5rC+lvHEM1gG27emi
 fZgSqhHsJgL04RVp7WM0MU48D2FKrjsElY24VOFMg3xXo8+mS71bakb9FMOStebQ
 fY4kp1dIM4K1sQl1fSfMsPEguN2iA6BlFXjhFruXQCJBTvbaLQlOMKHAMwARAQAB
 tBpMYXVuY2hwYWQgUFBBIGZvciBab3JpbiBPU4kCOAQTAQIAIgUCV97IIwIbAwYL
 CQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQMPz49k9xthyctBAAhMySX1g5wTXP
 DkQydp/nA3xcWe7gtNgi2US8nRxz72lxqkPGjqErlHgOTU/jJcs15klbl685eMxi
 YHWunNRXC0gcr50AphffjsH0dAiTAM9D88vQFrdofohkeJKpGget57K/dq+vjp6R
 hQh4QiBa5AD4p62WrevB90TvU+mxpapxX43+chs/bYnjTpVsTj5vzdjhPMNuBYNU
 9m4ZacQU6URvzRAfvU0/yQYLKyDTQMPo/qzQZtFs0KfdgPSMCK6t7gelO/KfN3da
 IJV3iICLFU9sQ1gfRoyNxsS5zQu/iUDtzy7qwSXZ7ZaFcdTsg9v1lQ95GcqJ5lW/
 BHsS4pHPreq0mqJCS1XeekqkuGGqAKopJj4G1Lw+cnQnzJDyDvK3lLhOza/Yyzc/
 WLHhiG3O2fk/1+54Xc5gIgyYTmLg4f0UqeI30Qsjbe+mUSFfHTl9JzNzpqhbOBTK
 NegYtPT78cKv15On4yP2dq9nxvgyPQTw54UYSvBLjiOrS9KrMfW8OK5488bs+deG
 DkSd/Y02twECg6SqW220a9VcZo51Kah1kbUdL9NdqZ4PDR3e7AQPcFaEOKc1CLg1
 omKPV+cJvstz7w0YZaubpCsg7PPFooR5gnOOGrU42Vdcj2IfscoNbGzCuoTNz+H4
 SMYeyjkJoD7iSt813oljpoHT3q8FGfk=
 =6RrC
 -----END PGP PUBLIC KEY BLOCK-----

When done, press ctrl+o to save, Enter to confirm and ctrl+x to exit. Then type in Terminal

sudo nano /etc/apt/sources.list.d/zorinos-ubuntu-patches-noble.sources

and press Enter, type in Your Password and put in the empty File this:

Types: deb
URIs: https://ppa.launchpadcontent.net/zorinos/patches/ubuntu/
Suites: noble
Components: main
Signed-By: -----BEGIN PGP PUBLIC KEY BLOCK-----
 .
 mQINBFfeyCMBEADEMOIi00+wAfIUUu9XKQOdZq2hHmWk04WD8b2oJDH8t0M40oRo
 OvZrNUcCM/XzwCbuJvcV2+I0LRjWyhIs8tfKknCOe56lV0Hj3tyZzSEoBG2d8eO9
 TZxePAytCMKRd78WSdcRFGl1OcbhCvxcLcPoPmuOOiA+2Twpo9B9CwuhbySg19hK
 OjO31AtX4P4s94cxl3stKOutkItzmMnac3LqYlTvAyjoxgn5p3R8CwLglHHuhXBo
 Ewhb0Crl+nRZCNL0xaV6bFU3CZ0ppn7Btn9VNyH2Fv2sDrERUgY0f8qAjSK2Cshv
 QB/m9flB3xbFA19nCZRUqj1hBkHFNN8kTPug5cb0tmuVVoCK3So4X1N6ooVTuT3V
 pkjs0gQmyUT9IPxbpwqt0MEwwFb8mHzQyChzyClAfQkdR/iLRX/ZEA/McWFmAhWr
 eIbksrKmiRu6WngoEjBa1L+kQwKKzWb4OKV4fOb0SEAMsQJYnbdaTb0ykIbgLfto
 3WXFriYHa0SsK4h2ePnyx2ZvI/aWJ38skKgdfsXq/fjImSi5rC+lvHEM1gG27emi
 fZgSqhHsJgL04RVp7WM0MU48D2FKrjsElY24VOFMg3xXo8+mS71bakb9FMOStebQ
 fY4kp1dIM4K1sQl1fSfMsPEguN2iA6BlFXjhFruXQCJBTvbaLQlOMKHAMwARAQAB
 tBpMYXVuY2hwYWQgUFBBIGZvciBab3JpbiBPU4kCOAQTAQIAIgUCV97IIwIbAwYL
 CQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQMPz49k9xthyctBAAhMySX1g5wTXP
 DkQydp/nA3xcWe7gtNgi2US8nRxz72lxqkPGjqErlHgOTU/jJcs15klbl685eMxi
 YHWunNRXC0gcr50AphffjsH0dAiTAM9D88vQFrdofohkeJKpGget57K/dq+vjp6R
 hQh4QiBa5AD4p62WrevB90TvU+mxpapxX43+chs/bYnjTpVsTj5vzdjhPMNuBYNU
 9m4ZacQU6URvzRAfvU0/yQYLKyDTQMPo/qzQZtFs0KfdgPSMCK6t7gelO/KfN3da
 IJV3iICLFU9sQ1gfRoyNxsS5zQu/iUDtzy7qwSXZ7ZaFcdTsg9v1lQ95GcqJ5lW/
 BHsS4pHPreq0mqJCS1XeekqkuGGqAKopJj4G1Lw+cnQnzJDyDvK3lLhOza/Yyzc/
 WLHhiG3O2fk/1+54Xc5gIgyYTmLg4f0UqeI30Qsjbe+mUSFfHTl9JzNzpqhbOBTK
 NegYtPT78cKv15On4yP2dq9nxvgyPQTw54UYSvBLjiOrS9KrMfW8OK5488bs+deG
 DkSd/Y02twECg6SqW220a9VcZo51Kah1kbUdL9NdqZ4PDR3e7AQPcFaEOKc1CLg1
 omKPV+cJvstz7w0YZaubpCsg7PPFooR5gnOOGrU42Vdcj2IfscoNbGzCuoTNz+H4
 SMYeyjkJoD7iSt813oljpoHT3q8FGfk=
 =6RrC
 -----END PGP PUBLIC KEY BLOCK-----

When done, press ctrl+o to save, Enter to confirm and ctrl+x to exit. And now comes the last File. Type in Terminal

sudo nano /etc/apt/sources.list.d/zorinos-ubuntu-stable-noble.sources

press enter and type in Your Password and put in the empty File this:

Types: deb
URIs: https://ppa.launchpadcontent.net/zorinos/stable/ubuntu/
Suites: noble
Components: main
Signed-By: -----BEGIN PGP PUBLIC KEY BLOCK-----
 .
 mQINBFfeyCMBEADEMOIi00+wAfIUUu9XKQOdZq2hHmWk04WD8b2oJDH8t0M40oRo
 OvZrNUcCM/XzwCbuJvcV2+I0LRjWyhIs8tfKknCOe56lV0Hj3tyZzSEoBG2d8eO9
 TZxePAytCMKRd78WSdcRFGl1OcbhCvxcLcPoPmuOOiA+2Twpo9B9CwuhbySg19hK
 OjO31AtX4P4s94cxl3stKOutkItzmMnac3LqYlTvAyjoxgn5p3R8CwLglHHuhXBo
 Ewhb0Crl+nRZCNL0xaV6bFU3CZ0ppn7Btn9VNyH2Fv2sDrERUgY0f8qAjSK2Cshv
 QB/m9flB3xbFA19nCZRUqj1hBkHFNN8kTPug5cb0tmuVVoCK3So4X1N6ooVTuT3V
 pkjs0gQmyUT9IPxbpwqt0MEwwFb8mHzQyChzyClAfQkdR/iLRX/ZEA/McWFmAhWr
 eIbksrKmiRu6WngoEjBa1L+kQwKKzWb4OKV4fOb0SEAMsQJYnbdaTb0ykIbgLfto
 3WXFriYHa0SsK4h2ePnyx2ZvI/aWJ38skKgdfsXq/fjImSi5rC+lvHEM1gG27emi
 fZgSqhHsJgL04RVp7WM0MU48D2FKrjsElY24VOFMg3xXo8+mS71bakb9FMOStebQ
 fY4kp1dIM4K1sQl1fSfMsPEguN2iA6BlFXjhFruXQCJBTvbaLQlOMKHAMwARAQAB
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 CQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQMPz49k9xthyctBAAhMySX1g5wTXP
 DkQydp/nA3xcWe7gtNgi2US8nRxz72lxqkPGjqErlHgOTU/jJcs15klbl685eMxi
 YHWunNRXC0gcr50AphffjsH0dAiTAM9D88vQFrdofohkeJKpGget57K/dq+vjp6R
 hQh4QiBa5AD4p62WrevB90TvU+mxpapxX43+chs/bYnjTpVsTj5vzdjhPMNuBYNU
 9m4ZacQU6URvzRAfvU0/yQYLKyDTQMPo/qzQZtFs0KfdgPSMCK6t7gelO/KfN3da
 IJV3iICLFU9sQ1gfRoyNxsS5zQu/iUDtzy7qwSXZ7ZaFcdTsg9v1lQ95GcqJ5lW/
 BHsS4pHPreq0mqJCS1XeekqkuGGqAKopJj4G1Lw+cnQnzJDyDvK3lLhOza/Yyzc/
 WLHhiG3O2fk/1+54Xc5gIgyYTmLg4f0UqeI30Qsjbe+mUSFfHTl9JzNzpqhbOBTK
 NegYtPT78cKv15On4yP2dq9nxvgyPQTw54UYSvBLjiOrS9KrMfW8OK5488bs+deG
 DkSd/Y02twECg6SqW220a9VcZo51Kah1kbUdL9NdqZ4PDR3e7AQPcFaEOKc1CLg1
 omKPV+cJvstz7w0YZaubpCsg7PPFooR5gnOOGrU42Vdcj2IfscoNbGzCuoTNz+H4
 SMYeyjkJoD7iSt813oljpoHT3q8FGfk=
 =6RrC
 -----END PGP PUBLIC KEY BLOCK-----

When done, press ctrl+o to save, Enter to confirm and ctrl+x to exit.

Then type in the Terminal sudo apt update && sudo apt upgrade to check for Errors and post the Output here please.

Hello! Sorry for the belated response. Life happens inbetween. Anyway...

I worked my way through with LLM assistance. And now it works. Which means I did not try your thorough and precise procedure. And since working with LLM worked, I will take time to go through with your proposal when I have more calm time in the life.

And well appreciated your promptness.

Anyway I post the output "sudo apt update && sudo apt upgrade" here:

Hit:1 Index of /ubuntu noble-updates InRelease
Hit:2 Index of /pub/mirrors/ubuntu noble InRelease
Hit:3 Index of /ubuntu noble-security InRelease
Hit:4 Index of /ubuntu noble-backports InRelease
Hit:5 Index of /utappia/stable/ubuntu jammy InRelease
Hit:6 Index of /zorinos/apps/ubuntu noble InRelease
Hit:7 Index of /leapcodes/riseup-vpn/ubuntu noble InRelease
Hit:8 Index of /zorinos/drivers/ubuntu noble InRelease
Get:9 https://repo.librewolf.net librewolf InRelease [5665 B]
Hit:10 Index of /zorinos/patches/ubuntu noble InRelease
Hit:11 Index of /stable/ noble InRelease
Hit:12 Index of /patches/ noble InRelease
Hit:13 Index of /apps/ noble InRelease
Hit:14 Index of /drivers/ noble InRelease
Fetched 5665 B in 1s (3781 B/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

1 Like

You still have a ppa for jammy in your sources (utappia). Relying solely on AI in situations like this can cause a lot of damage.

1 Like

I agree. As I said, I need to find more calm time to go through the process suggested by Ponce-De-Leon.

1 Like