If there is no option in my bios to set primary HDD, how do I add a second drive but still boot from my existing drive? - Quora
![BIOS LSI MegaRAID Configuration Utility Drive Management Menu Selections - Sun Blade X3-2B (formerly Sun Blade X6270 M3) Administration Guide BIOS LSI MegaRAID Configuration Utility Drive Management Menu Selections - Sun Blade X3-2B (formerly Sun Blade X6270 M3) Administration Guide](https://docs.oracle.com/cd/E20881_01/html/E20891/figures/l2a1a.png)
BIOS LSI MegaRAID Configuration Utility Drive Management Menu Selections - Sun Blade X3-2B (formerly Sun Blade X6270 M3) Administration Guide
![BIOS LSI MegaRAID Configuration Utility Drive Management Menu Selections - Sun Blade X3-2B (formerly Sun Blade X6270 M3) Administration Guide BIOS LSI MegaRAID Configuration Utility Drive Management Menu Selections - Sun Blade X3-2B (formerly Sun Blade X6270 M3) Administration Guide](https://docs.oracle.com/cd/E20881_01/html/E20891/figures/l2b.png)