These are BOSCO beta tarballs for several platforms.
They were built in the NMI lab from the head of 
V7_9-bosco_1_2-branch (d509f1779b9d00516cbb3eebe48b4751ea4732aa).
The NMI run id was 118622
The NMI gid was jfrey_submit-2.batlab.org_1366205201_9135
boscoinstaller is a copy of bosco_findplatform in the source tree.