/Shell/Bash/Apt update Release is not signed

Apt update Release is not signed

deb [trusted=yes] http://www.deb-multimedia.org jessie main

Source: askubuntu.com

Apt update Release is not signed

The below script is not recommended if you can install the keys from a keyserver (as recommended in another answer using apt-key adv) or if you can download them from a trusted source via https and install using apt-key (eg wget https://trusted.key.site/my-trusted-key.gpg | sudo apt-key add -), but if you don't have ANY other way, you can use this.

echo "deb http://your.repo.domain/repository/ $(lsb_release -c -s) universe" | sudo tee /etc/apt/sources.list.d/your-repo-name.list

sudo apt -o Acquire::AllowInsecureRepositories=true \
-o Acquire::AllowDowngradeToInsecureRepositories=true \
update

## if the 'apt update' above fails it is likely due to previously
## having the GPG key and repository on the system, you can clean
## out the old lists with `sudo rm /var/lib/apt/lists/your.repo.domain*`

apt-get -o APT::Get::AllowUnauthenticated=true install repo-keyring-pkgname

## If you ever run `sudo apt-key del your-repos-keyID`
## you may have to `sudo apt remove --purge repo-keyring-pkgname`
## Update should run without the GPG warnings now that the key is installed

apt-get update
apt-get install somepkg-from-repo
I originally put this together because i3 in their sur5r repo does this, but then I found out their keys are in the keyserver.ubuntu.com list, so I can just sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E3CA1A89941C42E6 and avoid all the extra package hassles.

Source: askubuntu.com

Similar codes

0 vote211 views1 answer
E: Package 'tesseract-ocr-dev' has no installation candidate
Shell/Bash
0 vote180 views1 answer
Git push existing git repository
Shell/Bash
0 vote188 views3 answers
How to install nginx on centos 7
Shell/Bash
0 vote236 views1 answer
ModuleNotFoundError: No module named 'detectron2'
Shell/Bash
17 votes231 views6 answers
How to add images in readme github
Shell/Bash
0 vote201 views1 answer
Yetanotherforum install
Shell/Bash
-1 vote168 views2 answers
React-helmet typescript
Shell/Bash
77 votes270 views6 answers
Zip files linux
Shell/Bash
2 votes189 views2 answers
How to stop shutdown command windows 10
Shell/Bash
0 vote347 views1 answer
Shortcut push github vscode
Shell/Bash