ubuntu开启debug-symbol-packages源

想安装bpftrace-dbgsym发现没有源，后来查了下源配置方法：https://ubuntu.com/server/docs/debug-symbol-packages

sudo apt install ubuntu-dbgsym-keyring

echo "deb http://ddebs.ubuntu.com $(lsb_release -cs) main restricted universe multiverse
deb http://ddebs.ubuntu.com $(lsb_release -cs)-updates main restricted universe multiverse
deb http://ddebs.ubuntu.com $(lsb_release -cs)-proposed main restricted universe multiverse" | \
sudo tee -a /etc/apt/sources.list.d/ddebs.list