$gdb core corexxx Missing separate debuginfo for the main executable file Try: yum --disablerepo='*' --enablerepo='*debug*' install /usr/lib/debug/.build- id/93/2a8124d5ac014eb54d2037a43dec951ea8939c OK, let's try that: $ yum blah blah... No package /usr/lib/debug/.build-id/93/2a8124d5ac014eb54d2037a43dec951ea8939c available. So, what's the correct procedure?