At Least Nine Ways To Identify Hard Disks


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.

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