PREUN
/bin/sh
dkms remove -m crystalhd -v 0-0.20100120.1mdv2010.1 --rpm_safe_upgrade --all true
POSTIN
/bin/sh
dkms add -m crystalhd -v 0-0.20100120.1mdv2010.1 --rpm_safe_upgrade && dkms build -m crystalhd -v 0-0.20100120.1mdv2010.1 --rpm_safe_upgrade && dkms install -m crystalhd -v 0-0.20100120.1mdv2010.1 --rpm_safe_upgrade --force true