I have run 20.04 64b since it was released. Awesome.
I’d never seen this “held broken packages” error until just this week.
I installed the Rust language via their online install script ( and later as one try to fix, via the downloaded tar), and the simple “hello” test program compile/link threw this error.
synaptic-pkexec show none, still an
apt install of glibc6-dev or build-essential gets the error.
I’d exhausted the Rust team’s suggestions, they suggested I try here.
I’d tried all solutions I could find; I get “no broken packages” in
synaptic-pkexec then try the
rustc hello.rs and get it again;
dpkg in addition to
synaptic-pkexec have not yielded the secret yet, but im not as seasoned in linux.
Q: Is there a location /log of the specific lib/ version conflicting and thus causing this install dependency error?