On Thu, Feb 28, 2019, 4:11 AM Miroslav Suchý <msuchy@redhat.com> wrote:
Dne 26. 02. 19 v 18:59 Ken Dreyer napsal(a):
> Is there anything else I could try?

dnf install unbuffer
unbuffer mock ...

unbuffer works great! Thank you Miroslav.

(Also I needed to "yum install expect" instead, since /usr/bin/unbuffer is in that package.)