You often need to know what physical drives are attached to a system, how many drives are connected, or even what device names match up with which physical drive. There is a handy tool called ‘lshw’ which is used to extract detailed information on the hardware in the PC. Unfortunately this doesn’t come pre-installed on CentOS. The details below will go through installing lshw, and how to run it to list all the hard drives.
This guide requires the EPEL repository to be configured.
Install the EPEL repostitory:
# yum -y install http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
Install the lshw package:
# yum -y install lshw
List all disks in the system:
# lshw -class disk -short
This will list all disks and storage devices. This includes DVD drives, USB memory sticks, etc.
# lshw -class disk -short H/W path Device Class Description ===================================================== /0/100/7.1/0.0.0 /dev/cdrom disk DVD-RAM writer /0/100/10/0.0.0 /dev/sda disk 10GB SCSI Disk #