Update problems

Installing Zorin OS
1

When I do sudo apt update, I receive this message:

N: Missing Signed-By in the sources.list(5) entry for 'Index of /stable/'
N: Missing Signed-By in the sources.list(5) entry for 'Index of /patches/'
N: Missing Signed-By in the sources.list(5) entry for 'Index of /apps/'
N: Missing Signed-By in the sources.list(5) entry for 'Index of /drivers/'

how can I solve these errors messages?

2

Can you share the output of the sources.list file?

cat /etc/apt/sources.list

Have you installed any additional third-party repositories to install something else?

1 Like
3

In your BIOS Settings, I believe you have Secure Boot enabled - but you have not enrolled MOK to manage package signatures.

You can enroll MOK or, disable Secure Boot.

Secure Boot is a collaboration between Microsoft and BIOS programming from manufacturers in which, like a bouncer at a night club, initializing processes are rejected if they are not Signed By Microsoft.

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4

hello.

~$ cat /etc/apt/ubuntu.sources
cat: /etc/apt/ubuntu.sources: No such file or directory
~$ cat /etc/apt/sources.list

Ubuntu sources have moved to /etc/apt/sources.list.d/ubuntu.sources

5

hello, thanks for your reply, I have secure boot disable.

6

cat /etc/apt/sources.list.d/ubuntu.sources
Types: deb
URIs: Index of /ubuntu
Suites: noble noble-updates noble-backports
Components: multiverse restricted universe main
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

Types: deb
URIs: Index of /ubuntu
Suites: noble-security
Components: multiverse restricted universe main
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

7

That looks odd :thinking:

What version of Zorin OS are you running? And have you made any changes to the system at all: new software installed, recent updates, etc...?

8

Zorin 18

I added some repos of Microsoft for visual code

9

@oscar4, please post the terminal output of

and

ls /etc/apt/sources.list.d

10

cat /etc/apt/sources.list

Ubuntu sources have moved to /etc/apt/sources.list.d/ubuntu.sources

ls /etc/apt/sources.list.d
brave-browser-release.list.distUpgrade zorin.list
microsoft-prod.list zorin.list.distUpgrade
microsoft-prod.list.save zorinos-ubuntu-apps-noble.sources
mssql-server-2022.list zorinos-ubuntu-apps-noble.sources.save
mssql-server-2022.list.save zorinos-ubuntu-drivers-noble.sources
mssql-server-preview.list.distUpgrade zorinos-ubuntu-drivers-noble.sources.save
third-party.sources zorinos-ubuntu-patches-noble.sources
third-party.sources.save zorinos-ubuntu-patches-noble.sources.save
ubuntu.sources zorinos-ubuntu-stable-noble.sources
ubuntu.sources.save zorinos-ubuntu-stable-noble.sources.save
vscode.sources zorin.sources
vscode.sources.save zorin.sources.save

11

This output shows an Ubuntu yaml file that was used in Mantic Minotaur interim release.

Are you using Zorin OS? At any time, did you try using the Ubuntu Release Upgrade command?

12

Hey, I have the same issue. Also using zorin os, am getting the "Oh no, something has gone wrong" screen on tty2 and had ran sudo apt upgrade command as advised in other guide I found, if that's what you're referring to.

13

I have the same issue.

When running :~$ cat /etc/apt/sources.list

I get:

Ubuntu sources have moved to /etc/apt/sources.list.d/ubuntu.sources

and running : ~$ cat /etc/apt/sources.list.d/ubuntu.sources

I get:
Types: deb
URIs: Index of /ubuntu
Suites: noble noble-updates noble-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

Types: deb
URIs: Index of /ubuntu
Suites: noble-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg