In Linux some time it’s tricky to find what’s the device name used for CDROM/DVD drive, on HP ,IBM , DELL or CISCO UCS blades or any other hardware you can run this simple command to find out the device name for the DVD/CD drive. First thing you would need is to connect to machine running Linux OS either using the system console or by connecting to machine using ssh
In the ls output command listed here for /sys/block/*/device , the output clearly shows the disk drivers on systems as /dev/sda and /dev/sdb , the third device is not the disk drive and most likely a DVD and CDROM
[root@safari ~]# ls -l /sys/block/*/device
lrwxrwxrwx. 1 root root 0 Mar 20 06:22 /sys/block/sda/device -> ../../../2:0:0:0
lrwxrwxrwx. 1 root root 0 Mar 20 06:22 /sys/block/sdb/device -> ../../../2:0:1:0
lrwxrwxrwx. 1 root root 0 Mar 20 06:22 /sys/block/sr0/device -> ../../../1:0:0:0
You can further confirm by doing an ls on /dev/sr0 :
[root@safari ~]# ls -l /dev/sr0
brw-rw----+ 1 root cdrom 11, 0 Mar 20 06:22 /dev/sr0
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