Linex4red Debian/Ubuntu Package Repository

Linux Expert for Robust Embedded Devices Debian Repo-Server

Adding Linex4red Debian/Ubuntu repositories to APT

Installing the Linex4red archive GPG key

The Linex4red Debian repositories are signed with the following GPG key:


  sec   rsa4096/46052ACC5DD94C6F 2022-06-22 [SC]
        6B9DF08810AB048CFE63AFD546052ACC5DD94C6F
  uid              [ultimate] Linex4red Debian/Ubuntu Packaging <debian@linex4red.de>
  ssb   rsa4096/6EA4E7B2CE0887EF 2022-06-22 [S] [expires: 2026-07-02]

Because the repository Linex4red GPG public key has an expiry date, it must be frequently updated. It is store in ascii-amored format and needs to converted in binary format before using.

To enable this key in your APT configuration, you have the following choices:

manually install the linex4red-archive-keyring package with wget https://debian.linex4red.de/repos/pool/main/l/linex4red-archive-keyring/linex4red-archive-keyring_2024.07.02_all.deb && sudo dpkg -i linex4red-archive-keyring_2024.07.02_all.deb The linex4red-archive-keyring package is frequently updated installing a new GPG key with later expiry date. The package stores it in directory /usr/share/keyrings/ in binary format.

manually fetch the Linex4red GPG public key and storing it in the secure directory /usr/share/keyrings/ with curl -s https://debian.linex4red.de/repos/linex4red-key.gpg | sudo gpg --dearmor --output /usr/share/keyrings/linex4red-archive-keyring.gpg It is a safe method for initial access to the repository and works since Debian Stretch.

manually fetch the Linex4red GPG public key, but storing it with apt-key (not general recommended) with curl -s https://debian.linex4red.de/repos/linex4red-key.gpg | sudo apt-key add - It is the old, more insecure way and only recommended for Debian Jessie or older Debian releases. Storing the key with apt-key is deprecated, because this GPG key could be used for any other repositories too.
If you later upgrade Debian and use the more secure way storing the public key in /usr/share/keyrings/, don't forget to delete the old key with: sudo apt-key del 5DD94C6F

Sources.list entries for APT of supported Distros

Debian Bookworm Backport

Debian bookworm-bpo requires the /etc/apt/sources.list.d/linex4red-bookworm.list file with content:


#
# Linex4red Debian Bookworm Backports Repo
#
deb [arch=amd64 signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos bookworm-bpo main
deb-src [signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos bookworm-bpo main

# Install key with:
# curl -s https://debian.linex4red.de/repos/linex4red-key.gpg | sudo gpg --dearmor --output /usr/share/keyrings/linex4red-archive-keyring.gpg

Debian Bullseye Backport

Debian bullseye-bpo requires the /etc/apt/sources.list.d/linex4red-bullseye.list file with content:


#
# Linex4red Debian Bullseye Backports Repo
#
deb [arch=amd64 signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos bullseye-bpo main
deb-src [signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos bullseye-bpo main

# Install key with:
# curl -s https://debian.linex4red.de/repos/linex4red-key.gpg | sudo gpg --dearmor --output /usr/share/keyrings/linex4red-archive-keyring.gpg

Debian Buster Backport

Debian buster-bpo requires the /etc/apt/sources.list.d/linex4red-buster.list file with content:


#
# Linex4red Debian Buster Backports Repo
#
deb [arch=amd64,i386 signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos buster-bpo main
deb-src [signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos buster-bpo main

# Install key with:
# curl -s https://debian.linex4red.de/repos/linex4red-key.gpg | sudo gpg --dearmor --output /usr/share/keyrings/linex4red-archive-keyring.gpg

Debian Stretch Backport

Debian stretch-bpo requires the /etc/apt/sources.list.d/linex4red-stretch.list file with content:


#
# Linex4red Debian Stretch Backports Repo
#
deb [arch=amd64,i386 signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos stretch-bpo main
deb-src [signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos stretch-bpo main

# Install key with:
# curl -s https://debian.linex4red.de/repos/linex4red-key.gpg | sudo gpg --dearmor --output /usr/share/keyrings/linex4red-archive-keyring.gpg

Debian Jessie Backport

Debian jessie-bpo requires the /etc/apt/sources.list.d/linex4red-jessie.list file with content:


#
# Linex4red Debian Jessie Backports Repo
#
deb http://debian.linex4red.de/repos jessie-bpo main
deb-src http://debian.linex4red.de/repos jessie-bpo main

# Install key with: 
# curl -s https://debian.linex4red.de/repos/linex4red-key.gpg | sudo apt-key add -

Ubuntu Jammy Backport

Debian jammy-bpo requires the /etc/apt/sources.list.d/linex4red-jammy.list file with content:


#
# Linex4red Ubuntu Jammy Backports Repo
#
deb [arch=amd64,i386 signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos jammy-bpo main
deb-src [signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos jammy-bpo main

# Install key with:
# curl -s https://debian.linex4red.de/repos/linex4red-key.gpg | sudo gpg --dearmor --output /usr/share/keyrings/linex4red-archive-keyring.gpg

Ubuntu Focal Backport

Debian focal-bpo requires the /etc/apt/sources.list.d/linex4red-focal.list file with content:


#
# Linex4red Ubuntu Focal Backports Repo
#
deb [arch=amd64,i386 signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos focal-bpo main
deb-src [signed-by=/usr/share/keyrings/linex4red-archive-keyring.gpg] https://debian.linex4red.de/repos focal-bpo main

# Install key with:
# curl -s https://debian.linex4red.de/repos/linex4red-key.gpg | sudo gpg --dearmor --output /usr/share/keyrings/linex4red-archive-keyring.gpg