CRS-5019:All OCR locations are on ASM disk groups [DATA], and none of these disk groups are mounted.

In my case ,  from ASM alert.log , actually it is due to ASM failed to start because of ORA-00600 as shown below.


ORA-00600: internal error code, arguments: [kfcema35], [0], [742], [0], [4368], [], [], [], [], [], [], []CRS-2674: Start of 'ora.asm' on 'rac1' failed


However, I don't have solution to overcome this ora-00600. In the end, I decided to rebuild the cluster.