Ubuntu 22.04 Jammy Jellyfish

echo "deb http://de.archive.ubuntu.com/ubuntu jammy main restricted universe multiverse" | \
    sudo tee /etc/apt/sources.list.d/ubuntu-jammy.list
echo "deb http://de.archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse" | \
    sudo tee /etc/apt/sources.list.d/ubuntu-jammy-updates.list
 
sudo apt update

# Enable cgroup v1, Cgroup v2 is now enabled by default. If you want to switch to cgroup v1 instead, you need to set the following kernel parameter:
 
systemd.unified_cgroup_hierarchy=0

# The RSA SHA-1 hash algorithm is being quickly deprecated. There is a workaround for re-enabling RSA at
 
ssh -o PubkeyAcceptedKeyTypes=+ssh-rsa user@server

# on SSH server
cat <<EOF>> /etc/ssh/sshd_config
HostKeyAlgorithms +ssh-rsa
PubkeyAcceptedKeyTypes +ssh-rsa
EOF
 
sudo systemctl restart sshd

# pdfarranger (still in 22.04?)
wget http://mirrors.edge.kernel.org/ubuntu/pool/universe/p/pdfarranger/pdfarranger_1.8.2-1_all.deb
sudo dpkg -i pdfarranger_1.8.2-1_all.deb
sudo apt install --fix-broken
sudo dpkg -i pdfarranger_1.8.2-1_all.deb