On my VE BIG-IP the rpmpkgs log only seems to get updated when booted. What's in your rpmpkgs logfile?
[root@nielsvs-bigip:Active:Standalone] log tail -10 rpmpkgs
2016-06-28T14:43:50+02:00 nielsvs-bigip notice boot_marker : ---===[ HD1.1 - BIG-IP 11.5.4 Build 0.0.256 ]===---
2016-07-01T13:16:45+02:00 localhost notice boot_marker : ---===[ HD1.2 - BIG-IP 12.0.0 Build 3.0.654 ]===---
2016-09-01T09:49:43+02:00 nielsvs-bigip notice boot_marker : ---===[ HD1.2 - BIG-IP 12.0.0 Build 3.0.654 ]===---
2016-11-11T15:21:50+01:00 localhost notice boot_marker : ---===[ HD1.3 - BIG-IP 12.1.1 Build 2.0.204 ]===---
2017-01-12T11:01:47+01:00 nielsvs-bigip notice boot_marker : ---===[ HD1.3 - BIG-IP 12.1.1 Build 2.0.204 ]===---
2017-01-17T20:09:16+01:00 nielsvs-bigip notice boot_marker : ---===[ HD1.3 - BIG-IP 12.1.1 Build 2.0.204 ]===---
2017-02-20T15:33:43+01:00 localhost notice boot_marker : ---===[ HD1.2 - BIG-IP 12.1.2 Build 0.0.249 ]===---
2017-02-24T09:23:39+01:00 localhost notice boot_marker : ---===[ HD1.1 - BIG-IP 13.0.0 Build 0.0.1645 ]===---
2017-02-24T09:36:00+01:00 nielsvs-bigip notice boot_marker : ---===[ HD1.1 - BIG-IP 13.0.0 Build 0.0.1645 ]===---
2017-02-24T11:19:46+01:00 nielsvs-bigip notice boot_marker : ---===[ HD1.1 - BIG-IP 13.0.0 Build 0.0.1645 ]===---
[root@nielsvs-bigip:Active:Standalone] log