Hi,
Do you see any logs being updated in /usr/sap/trans/tmp and usr/sap/trans/log directory.
Your kernel looks to be old you could have updated it before staring the support pack.
Do you see any error in the alert.log.
Did you check the below note before staring the update.
Note 1597765 - Known problems with Support Packages in SAP NW 7.31 AS ABAP
Thanks
Rishi Abrol