Подключаю debian репы в Astra Linux 1.8 (Debian 12 / Bookworm)

$ sudo vi /etc/apt/sources.list

deb http://deb.debian.org/debian bookworm main non-free-firmware
deb-src http://deb.debian.org/debian bookworm main non-free-firmware

deb http://deb.debian.org/debian-security/ bookworm-security main non-free-firmware
deb-src http://deb.debian.org/debian-security/ bookworm-security main non-free-firmware

deb http://deb.debian.org/debian bookworm-updates main non-free-firmware
deb-src http://deb.debian.org/debian bookworm-updates main non-free-firmware

// keyserver.ubuntu.com
$ gpg --keyserver keyring.debian.org --recv-keys 54404762BBB6E853 BDE6D2B9216EC7A8 E98404D386FA1D9 6ED0E7B82643E131

$ gpg --armor --export 54404762BBB6E853 | sudo apt-key add -
$ gpg --armor --export BDE6D2B9216EC7A8 | sudo apt-key add -
$ gpg --armor --export 0E98404D386FA1D9 | sudo apt-key add -
$ gpg --armor --export 6ED0E7B82643E131 | sudo apt-key add -

$ sudo apt-get update -y

$ sudo apt-get install -y locales-all