AX 2012 Process flow: Hi all now we jump in new concept that is CU4. for AX 2012 R2 upgrade CU4 will come in picture which is mandetory for the AX 2012 r2.
Step 1. Install all components Except DB
Step 1. Install all components Except DB
Step 2. run schema command on the DB
Step 3. run CU4 installable and check DB only
Step4. Select start the S/W update check list and complete it
Step 5. below is the check list which should complete successfully
Step 6. At last check the version and installed model it should match to the CU4 one.