when I startup the db ,alert.log shows these messages:

Starting ORACLE instance (normal)
Cannot determine all dependent dynamic libraries for /proc/self/exe
Unable to find dynamic library libocr10.so in search paths
RPATH = /ade/aime1_build2101/oracle/has/lib/:/ade/aime1_build2101/oracle/lib/:/ade/aime1_build2101/oracle/has/lib/:
LD_LIBRARY_PATH = /opt/ora10g/product/10.2.0/db_1/bin:/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin/
The default library directories are /lib and /usr/lib
Unable to find dynamic library libocrb10.so in search paths
Unable to find dynamic library libocrutl10.so in search paths
Unable to find dynamic library libocrutl10.so in search paths

metalink,ID 371408.1 ,I think this maybe a bug.the solution is:

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Start  the Oracle database by  using the userid that owns the Oracle binaries/software  , if  you are starting the Oracle database by the userid other than owner of the Oracle binaries /software.
OR
You can safely ignore the error message in the alert.log.
OR
You can execute the following steps of implement the solution if LD_LIBRARY_PATH is NOT set or set incorrectly then
Include the $ORACLE_HOME/lib in the LD_LIBRARY_PATH
% export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$LD_LIBRARY_PATH
OR
Copy the files libocrb10.so and libocrutl10.so from $ORACLE_HOME/lib to /usr/lib. You need superuser privileges to be able to do this step.

参考文献：
http://space.itpub.net/14730395/viewspace-671371