Get debug symbols for Debian packages

Install [pkgname] -dbgsym for the corresponding pkgname.

apt-line

deb http://debug.mirrors.debian.org/debian-debug stretch-debug main contrib non-free

Manual

1. Check http://debug.mirrors.debian.org/debian-debug/dists/stretch-debug/main/binary-amd64/
2. Check the Filename field for the entry in the [pkgname] -dbgsym package
3. Get from http://debug.mirrors.debian.org/debian-debug/pool/

cf: https://wiki.debian.org/DebugPackage