Solution : https://service.sap.com/sap/support/notes/46236 (SAP Service marketplace login required)
Key words :
generated additional key words startup nomountinstallation, shared memory required, solution increase shmmax, oracle instance, error ora-9998, unix systems, oracle release 7, reducing db_block_buffers, prerequisites, shared_pool_size
Related Notes :
66575 | Increasing SGA limits in UNIX -special info for SUN |