I can't seem to get an external DVD drive to show up on an CentOS 7 server. Wondering if it's just missing a driver or if I'm missing something fundamental. It's an external USB device that works fine on my Fedora 21 Laptop, but I never get a /dev/ entry (EG: /dev/sr0) on the server. What can I do to make this thing work? [root at norman ~]# tail -f /var/log/messages; # inserting the device into a port Jun 15 18:29:38 norman kernel: usb 1-3: new high-speed USB device number 5 using ehci-pci Jun 15 18:29:38 norman kernel: usb 1-3: New USB device found, idVendor=13fd, idProduct=1040 Jun 15 18:29:38 norman kernel: usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jun 15 18:29:38 norman kernel: usb 1-3: Product: RW/DVD_GCC-T10N Jun 15 18:29:38 norman kernel: usb 1-3: Manufacturer: Initio Jun 15 18:29:38 norman kernel: usb 1-3: SerialNumber: 0000000000000000W [root at norman ~]# lsusb Bus 001 Device 005: ID 13fd:1040 Initio Corporation INIC-1511L PATA Bridge Bus 002 Device 002: ID 413c:2107 Dell Computer Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub [root at norman ~]# usb-devices T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 8 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0002 Rev=03.10 S: Manufacturer=Linux 3.10.0-229.20.1.el7.x86_64 ehci_hcd S: Product=EHCI Host Controller S: SerialNumber=0000:00:1c.3 C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 5 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=13fd ProdID=1040 Rev=01.06 S: Manufacturer=Initio S: Product=RW/DVD_GCC-T10N S: SerialNumber=0000000000000000W C: #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=2mA I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=05 Prot=50 Driver=(none) --SNIP-- This is what tail -f /var/log/messages looks like on my F21 laptop: Jun 15 18:41:35 tesla kernel: [ 913.678526] usb 1-2: new high-speed USB device number 5 using xhci_hcd Jun 15 18:41:35 tesla kernel: usb 1-2: new high-speed USB device number 5 using xhci_hcd Jun 15 18:41:36 tesla kernel: [ 913.843709] usb 1-2: New USB device found, idVendor=13fd, idProduct=1040 Jun 15 18:41:36 tesla kernel: [ 913.843713] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jun 15 18:41:36 tesla kernel: [ 913.843715] usb 1-2: Product: RW/DVD_GCC-T10N Jun 15 18:41:36 tesla kernel: [ 913.843717] usb 1-2: Manufacturer: Initio Jun 15 18:41:36 tesla kernel: [ 913.843718] usb 1-2: SerialNumber: 0000000000000000W Jun 15 18:41:36 tesla kernel: usb 1-2: New USB device found, idVendor=13fd, idProduct=1040 Jun 15 18:41:36 tesla kernel: usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jun 15 18:41:36 tesla kernel: usb 1-2: Product: RW/DVD_GCC-T10N Jun 15 18:41:36 tesla kernel: usb 1-2: Manufacturer: Initio Jun 15 18:41:36 tesla kernel: usb 1-2: SerialNumber: 0000000000000000W Jun 15 18:41:36 tesla mtp-probe: checking bus 1, device 5: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2" Jun 15 18:41:36 tesla mtp-probe: bus: 1, device: 5 was not an MTP device Jun 15 18:41:36 tesla kernel: [ 913.863969] usb-storage 1-2:1.0: USB Mass Storage device detected Jun 15 18:41:36 tesla kernel: [ 913.864035] scsi host6: usb-storage 1-2:1.0 Jun 15 18:41:36 tesla kernel: [ 913.864099] usbcore: registered new interface driver usb-storage Jun 15 18:41:36 tesla kernel: usb-storage 1-2:1.0: USB Mass Storage device detected Jun 15 18:41:36 tesla kernel: scsi host6: usb-storage 1-2:1.0 Jun 15 18:41:36 tesla kernel: usbcore: registered new interface driver usb- storage Jun 15 18:41:37 tesla kernel: [ 914.864033] scsi 6:0:0:0: CD-ROM HL-DT-ST RW/DVD_GCC-T10N 1.01 PQ: 0 ANSI: 0 Jun 15 18:41:37 tesla kernel: scsi 6:0:0:0: CD-ROM HL-DT-ST RW/DVD_GCC-T10N 1.01 PQ: 0 ANSI: 0 Jun 15 18:41:37 tesla kernel: [ 914.867503] sr 6:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray Jun 15 18:41:37 tesla kernel: [ 914.867517] cdrom: Uniform CD-ROM driver Revision: 3.20 Jun 15 18:41:37 tesla kernel: [ 914.867814] sr 6:0:0:0: Attached scsi generic sg2 type 5 Jun 15 18:41:37 tesla kernel: sr 6:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray Jun 15 18:41:37 tesla kernel: cdrom: Uniform CD-ROM driver Revision: 3.20 Jun 15 18:41:37 tesla kernel: sr 6:0:0:0: Attached scsi generic sg2 type 5