Failed to install root-6.02.05 on ubuntu14.04(LTS)

[quote=“Wile E. Coyote”]Old version vs. New Version Installation Processes
[ROOT uninstalls on reboot
Thanks a lot!
As is stated above, root-6.02.05 can work very well on my pc, but the problem is that Geant4 can’t find some header files such as TROOT.h in “root-6.02.05/include”. And before I make the example in “geant4.10.01/examples/advanced/iort_therapy” , I have ran
source full\path/root-6.02.05/bin/thisroot.sh in the same session and root can run properly.

echo $LD_LIBRARY_PATH /home/coordinator/soft/root-6.02.05/root-6.02.05/lib:/home/coordinator/soft/geant4.10.01-build/lib

Then how can I deal with this problem?