I have just bought a 120GB external usb drive but after plugging it in it is not getting mounted. lines from /var/log/messages: > Oct 22 18:54:49 station2 kernel: usb 1-2: new high speed USB device using ehci_hcd and address 2 > Oct 22 18:54:49 station2 kernel: usb 1-2: configuration #1 chosen from 1 choice > Oct 22 18:54:49 station2 kernel: scsi4 : SCSI emulation for USB Mass Storage devices > Oct 22 18:54:54 station2 kernel: Vendor: ST312002 Model: 2A Rev: 0 0 > Oct 22 18:54:54 station2 kernel: Type: Direct-Access ANSI SCSI revision: 00 > Oct 22 18:54:54 station2 kernel: SCSI device sdd: 234441648 512-byte hdwr sectors (120034 MB) > Oct 22 18:54:54 station2 kernel: sdd: Write Protect is off > Oct 22 18:54:54 station2 kernel: sdd: assuming drive cache: write through > Oct 22 18:54:54 station2 kernel: SCSI device sdd: 234441648 512-byte hdwr sectors (120034 MB) > Oct 22 18:54:54 station2 kernel: sdd: Write Protect is off > Oct 22 18:54:54 station2 kernel: sdd: assuming drive cache: write through > Oct 22 18:54:54 station2 kernel: sdd:<6>sd 4:0:0:0: SCSI error: return code = 0x10070000 > Oct 22 18:54:54 station2 kernel: end_request: I/O error, dev sdd, sector 0 > Oct 22 18:54:54 station2 kernel: Buffer I/O error on device sdd, logical block 0 > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: SCSI error: return code = 0x10070000 > Oct 22 18:54:54 station2 kernel: end_request: I/O error, dev sdd, sector 0 > Oct 22 18:54:54 station2 kernel: Buffer I/O error on device sdd, logical block 0 > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: SCSI error: return code = 0x10070000 > Oct 22 18:54:54 station2 kernel: end_request: I/O error, dev sdd, sector 0 > Oct 22 18:54:54 station2 kernel: Buffer I/O error on device sdd, logical block 0 > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: SCSI error: return code = 0x10070000 > Oct 22 18:54:54 station2 kernel: end_request: I/O error, dev sdd, sector 0 > Oct 22 18:54:54 station2 kernel: Buffer I/O error on device sdd, logical block 0 > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: SCSI error: return code = 0x10070000 > Oct 22 18:54:54 station2 kernel: end_request: I/O error, dev sdd, sector 0 > Oct 22 18:54:54 station2 kernel: Buffer I/O error on device sdd, logical block 0 > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: SCSI error: return code = 0x10070000 > Oct 22 18:54:54 station2 kernel: end_request: I/O error, dev sdd, sector 0 > Oct 22 18:54:54 station2 kernel: Buffer I/O error on device sdd, logical block 0 > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: SCSI error: return code = 0x10070000 > Oct 22 18:54:54 station2 kernel: end_request: I/O error, dev sdd, sector 0 > Oct 22 18:54:54 station2 kernel: Buffer I/O error on device sdd, logical block 0 > Oct 22 18:54:54 station2 kernel: Dev sdd: unable to read RDB block 0 > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: SCSI error: return code = 0x10070000 > Oct 22 18:54:54 station2 kernel: end_request: I/O error, dev sdd, sector 0 > Oct 22 18:54:54 station2 kernel: Buffer I/O error on device sdd, logical block 0 > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: SCSI error: return code = 0x10070000 > Oct 22 18:54:54 station2 kernel: end_request: I/O error, dev sdd, sector 0 > Oct 22 18:54:54 station2 kernel: Buffer I/O error on device sdd, logical block 0 > Oct 22 18:54:54 station2 kernel: unable to read partition table > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: Attached scsi disk sdd > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: Attached scsi generic sg3 type 0 > Oct 22 18:54:54 station2 kernel: sd 4:0:0:0: SCSI error: return code = 0x10070000 > Oct 22 18:54:54 station2 kernel: end_request: I/O error upon searching in the forum i came accross this tread http://www.centos.org/modules/newbb/viewtopic.php?topic_id=9887&forum=29&post_id=31541#forumpost31541 but it has gone unanswered for two years. Google search gives result all of which involves moving to a newer kernel.For the matter the drive gets mounted under fedora 9 - but i want to use it with CentOS. here is my lspci -v > 00:00.0 RAM memory: nVidia Corporation MCP67 Memory Controller (rev a2) > Subsystem: ASUSTeK Computer Inc. Unknown device 82b3 > Flags: bus master, 66MHz, fast devsel, latency 0 > Capabilities: [44] HyperTransport: Slave or Primary Interface > Capabilities: [dc] HyperTransport: MSI Mapping > > 00:01.0 ISA bridge: nVidia Corporation MCP67 ISA Bridge (rev a2) > Subsystem: ASUSTeK Computer Inc. Unknown device 82b3 > Flags: bus master, 66MHz, fast devsel, latency 0 > I/O ports at 0900 [size=256] > > 00:01.1 SMBus: nVidia Corporation MCP67 SMBus (rev a2) > Subsystem: ASUSTeK Computer Inc. Unknown device 82b3 > Flags: 66MHz, fast devsel, IRQ 10 > I/O ports at dc00 [size=64] > I/O ports at 0600 [size=64] > I/O ports at 0700 [size=64] > Capabilities: [44] Power Management version 2 > > 00:02.0 USB Controller: nVidia Corporation MCP67 OHCI USB 1.1 Controller (rev a2) (prog-if 10 [OHCI]) > Subsystem: ASUSTeK Computer Inc. Unknown device 82b3 > Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 58 > Memory at feaff000 (32-bit, non-prefetchable) [size=4K] > Capabilities: [44] Power Management version 2 > > 00:02.1 USB Controller: nVidia Corporation MCP67 EHCI USB 2.0 Controller (rev a2) (prog-if 20 [EHCI]) > Subsystem: ASUSTeK Computer Inc. Unknown device 82b3 > Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 233 > Memory at feafec00 (32-bit, non-prefetchable) [size=256] > Capabilities: [44] Debug port > Capabilities: [80] Power Management version 2 > > 00:04.0 USB Controller: nVidia Corporation MCP67 OHCI USB 1.1 Controller (rev a2) (prog-if 10 [OHCI]) > Subsystem: ASUSTeK Computer Inc. Unknown device 82b3 > Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 66 > Memory at feafd000 (32-bit, non-prefetchable) [size=4K] > Capabilities: [44] Power Management version 2 > > 00:04.1 USB Controller: nVidia Corporation MCP67 EHCI USB 2.0 Controller (rev a2) (prog-if 20 [EHCI]) > Subsystem: ASUSTeK Computer Inc. Unknown device 82b3 > Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 50 > Memory at feafe800 (32-bit, non-prefetchable) [size=256] > Capabilities: [44] Debug port > Capabilities: [80] Power Management version 2 > > 00:08.0 PCI bridge: nVidia Corporation MCP67 PCI Bridge (rev a2) (prog-if 01 [Subtractive decode]) > Flags: bus master, 66MHz, fast devsel, latency 0 > Bus: primary=00, secondary=01, subordinate=01, sec-latency=64 > I/O behind bridge: 0000e000-0000efff > Memory behind bridge: feb00000-febfffff > Capabilities: [b8] #0d [0000] > Capabilities: [8c] HyperTransport: MSI Mapping > > 00:09.0 IDE interface: nVidia Corporation MCP67 AHCI Controller (rev a2) (prog-if 85 [Master SecO PriO]) > Subsystem: ASUSTeK Computer Inc. Unknown device 82b3 > Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 233 > I/O ports at d480 [size=8] > I/O ports at d400 [size=4] > I/O ports at d080 [size=8] > I/O ports at d000 [size=4] > I/O ports at cc00 [size=16] > Memory at feafa000 (32-bit, non-prefetchable) [size=8K] > Capabilities: [44] Power Management version 2 > Capabilities: [8c] #12 [0010] > > 00:0a.0 Ethernet controller: nVidia Corporation MCP67 Ethernet (rev a2) > Subsystem: ASUSTeK Computer Inc. Unknown device 82b3 > Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 90 > Memory at feafc000 (32-bit, non-prefetchable) [size=4K] > I/O ports at c880 [size=8] > Memory at feafe400 (32-bit, non-prefetchable) [size=256] > Memory at feafe000 (32-bit, non-prefetchable) [size=16] > Capabilities: [44] Power Management version 2 > Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable+ > Capabilities: [6c] HyperTransport: MSI Mapping > > 00:0b.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) > Flags: bus master, fast devsel, latency 0 > Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 > Capabilities: [40] #0d [0000] > Capabilities: [48] Power Management version 2 > Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ > Capabilities: [60] HyperTransport: MSI Mapping > Capabilities: [80] Express Root Port (Slot+) IRQ 0 > 00:0c.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) > Flags: bus master, fast devsel, latency 0 > Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 > Capabilities: [40] #0d [0000] > Capabilities: [48] Power Management version 2 > Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ > Capabilities: [60] HyperTransport: MSI Mapping > Capabilities: [80] Express Root Port (Slot+) IRQ 0 > > 00:0d.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) > Flags: bus master, fast devsel, latency 0 > Bus: primary=00, secondary=04, subordinate=04, sec-latency=0 > Capabilities: [40] #0d [0000] > Capabilities: [48] Power Management version 2 > Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ > Capabilities: [60] HyperTransport: MSI Mapping > Capabilities: [80] Express Root Port (Slot+) IRQ 0 > > 00:0e.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) > Flags: bus master, fast devsel, latency 0 > Bus: primary=00, secondary=05, subordinate=05, sec-latency=0 > Capabilities: [40] #0d [0000] > Capabilities: [48] Power Management version 2 > Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ > Capabilities: [60] HyperTransport: MSI Mapping > Capabilities: [80] Express Root Port (Slot+) IRQ 0 > > 00:0f.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) > Flags: bus master, fast devsel, latency 0 > Bus: primary=00, secondary=06, subordinate=06, sec-latency=0 > Capabilities: [40] #0d [0000] > Capabilities: [48] Power Management version 2 > Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ > Capabilities: [60] HyperTransport: MSI Mapping > Capabilities: [80] Express Root Port (Slot+) IRQ 0 > > 00:10.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) > Flags: bus master, fast devsel, latency 0 > Bus: primary=00, secondary=07, subordinate=07, sec-latency=0 > Capabilities: [40] #0d [0000] > Capabilities: [48] Power Management version 2 > Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ > Capabilities: [60] HyperTransport: MSI Mapping > Capabilities: [80] Express Root Port (Slot+) IRQ 0 > > 00:11.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2) (prog-if 00 [Normal decode]) > Flags: bus master, fast devsel, latency 0 > Bus: primary=00, secondary=08, subordinate=08, sec-latency=0 > Capabilities: [40] #0d [0000] > Capabilities: [48] Power Management version 2 > Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ > Capabilities: [60] HyperTransport: MSI Mapping > Capabilities: [80] Express Root Port (Slot+) IRQ 0 > > 00:12.0 VGA compatible controller: nVidia Corporation GeForce 7050 PV / nForce 630a (rev a2) (prog-if 00 [VGA controller]) > Subsystem: ASUSTeK Computer Inc. Unknown device 82b3 > Flags: bus master, 66MHz, fast devsel, laten > Memory at fd000000 (32-bit, non-prefetchable) [size=16M] > Memory at d0000000 (64-bit, prefetchable) [size=256M] > Memory at fc000000 (64-bit, non-prefetchable) [size=16M] > [virtual] Expansion ROM at feac0000 [disabled] [size=128K] > Capabilities: [48] Power Management version 2 > Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable- > > 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration > Flags: fast devsel > Capabilities: [80] HyperTransport: Host or Secondary Interface > > 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map > Flags: fast devsel > > 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller > Flags: fast devsel > > 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control > Flags: fast devsel > Capabilities: [f0] #0f [0010] > > 01:06.0 Multimedia audio controller: Creative Labs [SB Live! Value] EMU10k1X > Subsystem: Creative Labs Unknown device 1001 > Flags: bus master, medium devsel, latency 64, IRQ 82 > I/O ports at ec00 [size=32] > Capabilities: [dc] Power Management version 2 > > 01:07.0 Ethernet controller: VIA Technologies, Inc. VT6105 [Rhine-III] (rev 8b) > Subsystem: D-Link System Inc Unknown device 1405 > Flags: bus master, medium devsel, latency 64, IRQ 74 > I/O ports at e800 [size=256] > Memory at febffc00 (32-bit, non-prefetchable) [size=256] > Capabilities: [44] Power Management version 2