error installing patch 9654983 on HPUX RAC 11.2

 Hello,
I'm doing a new installation of a 11.2.0.1 GRID on a HPUX Itanium 11.31 but having the following errors when aplying patch 9654983:

...
Running make for target client_sharedlib

Make failed to invoke "/usr/ccs/bin/make -f ins_net_client.mk client_sharedlib ORACLE_HOME=/u01/app/oracle/product/crs"....'rm: /u01/app/oracle/product/crs/lib/libclntsh.so.11.1 not removed. Permission denied

genclntsh: Failed to remove /u01/app/oracle/product/crs/lib/libclntsh.so.11.1

and then again

...
Make failed to invoke "/usr/ccs/bin/make -f ins_rdbms.mk client_sharedlib ORACLE_HOME=/u01/app/oracle/product/crs"....'rm: /u01/app/oracle/product/crs/lib/libclntsh.so.11.1 not removed. Permission denied