After writing the long post, Secrets of BIOS, Grub, and Triple Boot Servers, I still had some notes left over.
Here’s some more detailed info on the many different ways that hard drives are identified in my server using: Phoenix BIOS, ASUS BIOS 1006, Sept 1, 2008. There are at least 9 different properties or ways to identify them.
| Disk Drive Model Name | WD10 | Hitachi | WD400 |
| Hard Disk | 3 | 4 | 5 |
| Fixed Disk | 0 | 1 | 2 |
| Sata Port | 2 | 3 | 4 |
| IDE | 3 | 4 | 5 |
| BIOS Boot Order | 2 | 3 | 1 |
| Grub HD? | (hd1) | (hd2) | (hd0) |
| Operating System | Windows 7 | Redhat 5.5 | Redhat 6.4 |
| /dev/sd? | /dev/sdb | /dev/sda | /dev/sdc |
Make sense? Quick, how many can you recall?
Note: Redhat 6.4 is the main boot disk. After booting Redhat 6.4, the /dev/sd? is what is indicated by running fdisk -l. Please read the previous post for the details.
Posted by rodgersnotes 