Question about msg during 7.x upgrade

I was performing the prelim steps to upgrade a machine from 7.31uc2a to 7.31ud3. During the installserver process I received the msg listed below about shared libraries and am wondering if I have any need for concern. We will continue to run the uc2a version for another 2 weeks, switch to the ud3 version for a short period, and then migrate to the 9.4 version. However, once the uc2a version is stopped and started, will it have a problem with the new iosm07a.sl or the ipldd07a.sl files that have been changed by the ud3 upgrade? Thanks in advance.... Installing Shared Libraries in System Directories ... mv: /usr/lib/iosm07a.sl: cannot move "text busy" shared library: Text file busy Linking /usr/lib/iosm07a.sl from lib/iosm07a.sl Previous version of /usr/lib/iosm07a.sl saved as /usr/lib/iosm07a.sl.20030608 Linking /usr/lib/ipldd07a.sl from lib/ipldd07a.sl Previous version of /usr/lib/ipldd07a.sl saved as /usr/lib/ipldd07a.sl.20030608 Installation of Informix Dynamic Server complete.