pendrive is not recognized by the linux system

sujata pulugurta · 05-23-2008, 08:24 AM

Hello

Well iam pretty new to this linux...
Iam using turbolinux ...where it is unable to recognize my pendrive,
I have followed all the steps to mount my pendrive but i culdnt find solution to the problem
Actually whenever i give command
mount -t vfat /dev/sda8 /mnt/pendrive
it gives ...
mount: /dev/sda8 is not a valid block device
i tried with /dev/sda1...
The problem is iam unable to detect the correct device for my pendrive.

After inserting my pendrive and the giving the command..
fdisk -l it gives hda1 and hda2 but sda is not recognized

Then giving the command ..
dmesg
the following output is generated...
Linux version 2.6.0-test5_2 (go@kernel.turbolinux.co.jp) (gcc version 3.3.1) #1 Sun Sep 28 14:23:53 JST 2003
Video mode to be used for restore is f00
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000077f0000 (usable)
BIOS-e820: 00000000077f0000 - 00000000077f3000 (ACPI NVS)
BIOS-e820: 00000000077f3000 - 0000000007800000 (ACPI data)
BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
0MB HIGHMEM available.
119MB LOWMEM available.
On node 0 totalpages: 30704
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 26608 pages, LIFO batch:6
HighMem zone: 0 pages, LIFO batch:1
DMI 2.3 present.
Building zonelist for node : 0
Kernel command line: root=0302
Initializing CPU#0
PID hash table entries: 512 (order 9: 4096 bytes)
Detected 2600.909 MHz processor.
Console: colour VGA+ 80x25
Memory: 118204k/122816k available (1594k kernel code, 4056k reserved, 581k data, 308k init, 0k highmem)
Calibrating delay loop... 5128.19 BogoMIPS
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000
CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: After all inits, caps: bfebfbff 00000000 00000000 00000080
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU#0: Intel P4/Xeon Extended MCE MSRs (12) available
CPU: Intel(R) Pentium(R) 4 CPU 2.60GHz stepping 09
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfba40, last bus=1
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20030916
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
SCSI subsystem initialized
ACPI: ACPI tables contain no PCI IRQ routing entries
PCI: Invalid ACPI-PCI IRQ routing table
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
Transparent bridge - 0000:00:1e.0
PCI: Using IRQ router PIIX [8086/24c0] at 0000:00:1f.0
PCI: IRQ 0 for device 0000:00:1f.1 doesn't match PIRQ mask - try pci=usepirqmask
PCI: Found IRQ 9 for device 0000:00:1f.1
PCI: Sharing IRQ 9 with 0000:00:1d.2
apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16ac)
VFS: Disk quotas dquot_6.5.1
Initializing Cryptographic API
pty: 256 Unix98 ptys configured
Real Time Clock Driver v1.12
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
Using anticipatory io scheduler
Floppy drive(s): fd0 is 2.88M AMI BIOS
FDC 0 is a post-1991 82077
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH4: IDE controller at PCI slot 0000:00:1f.1
PCI: Found IRQ 9 for device 0000:00:1f.1
PCI: Sharing IRQ 9 with 0000:00:1d.2
ICH4: chipset revision 2
ICH4: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda

MA, hdb

io
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc

MA, hdd

io
hda: WDC WD400BB-00DKA0, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hdc: ASUS CD-S480/AH, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 1024KiB
hda: 78165360 sectors (40020 MB) w/2048KiB Cache, CHS=4865/255/63, UDMA(100)
hda: hda1 hda2
mice: PS/2 mouse device common for all mice
input: PC Speaker
serio: i8042 AUX port at 0x60,0x64 irq 12
input: AT Set 2 keyboard on isa0060/serio0
serio: i8042 KBD port at 0x60,0x64 irq 1
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 17
PM: Reading pmdisk image.
PM: Resume from disk failed.
RAMDISK: Compressed image found at block 0
Freeing initrd memory: 23k freed
VFS: Mounted root (ext2 filesystem).
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Trying to move old root to /initrd ... okay
Freeing unused kernel memory: 308k freed
Adding 128480k swap on /dev/hda1. Priority:-1 extents:1
drivers/usb/core/usb.c: registered new driver usbfs
drivers/usb/core/usb.c: registered new driver hub
drivers/usb/host/uhci-hcd.c: USB Universal Host Controller Interface driver v2.1
PCI: Found IRQ 10 for device 0000:00:1d.0
PCI: Sharing IRQ 10 with 0000:00:02.0
uhci-hcd 0000:00:1d.0: UHCI Host Controller
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci-hcd 0000:00:1d.0: irq 10, io base 0000d800
uhci-hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
hub 1-0:0: USB hub found
hub 1-0:0: 2 ports detected
PCI: Found IRQ 11 for device 0000:00:1d.1
uhci-hcd 0000:00:1d.1: UHCI Host Controller
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci-hcd 0000:00:1d.1: irq 11, io base 0000d000
uhci-hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
hub 2-0:0: USB hub found
hub 2-0:0: 2 ports detected
PCI: Found IRQ 9 for device 0000:00:1d.2
PCI: Sharing IRQ 9 with 0000:00:1f.1
uhci-hcd 0000:00:1d.2: UHCI Host Controller
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci-hcd 0000:00:1d.2: irq 9, io base 0000d400
uhci-hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
hub 3-0:0: USB hub found
hub 3-0:0: 2 ports detected
PCI: Found IRQ 11 for device 0000:00:1d.7
PCI: Sharing IRQ 11 with 0000:01:0c.0
PCI: Sharing IRQ 11 with 0000:01:0d.0
ehci_hcd 0000:00:1d.7: EHCI Host Controller
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: irq 11, pci mem c8011000
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 4
ehci_hcd 0000:00:1d.7: enabled 64bit PCI DMA
PCI: cache line size of 128 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: USB 2.0 enabled, EHCI 1.00, driver 2003-Jun-13
hub 4-0:0: USB hub found
hub 4-0:0: 6 ports detected
input: ImPS/2 Generic Wheel Mouse on isa0060/serio1
EXT3 FS on hda2, internal journal
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: ASUS Model: CD-S480/AH Rev: 0.85
Type: CD-ROM ANSI SCSI revision: 02
PCI: Found IRQ 3 for device 0000:01:0a.0
ttySHSF0 at I/O 0xc000 (irq = 3) is a Conexant HSF softmodem
8139too Fast Ethernet driver 0.9.26
PCI: Found IRQ 11 for device 0000:01:0c.0
PCI: Sharing IRQ 11 with 0000:00:1d.7
PCI: Sharing IRQ 11 with 0000:01:0d.0
eth0: RealTek RTL8139 at 0xc8048000, 00:0c:76:84:ad:0d, IRQ 11
eth0: Identified 8139 chip type 'RTL-8101'
eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
Linux agpgart interface v0.100 (c) Dave Jones
agpgart: Detected an Intel 845G Chipset.
agpgart: Maximum main memory to use for agp memory: 86M
agpgart: Detected 8060K stolen memory.
agpgart: AGP aperture is 128M @ 0xe0000000
PCI: Found IRQ 5 for device 0000:00:1f.5
PCI: Sharing IRQ 5 with 0000:00:1f.3
PCI: Setting latency timer of device 0000:00:1f.5 to 64
intel8x0: clocking to 48000
NET: Registered protocol family 10
Disabled Privacy Extensions on device c02e4400(lo)
IPv6 over IPv4 tunneling driver
eth0: no IPv6 routers present
hub 4-0:0: new USB device on port 5, assigned address 2

Iam unable to understand the problem..please help me to find solution to this problem

Thanks in advance

farslayer · 05-23-2008, 10:28 AM

lsusb - Will List USB devices connected to computer

Code:

mhepler@it-etch:~$ lsusb
Bus 002 Device 098: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical
Bus 002 Device 004: ID 0557:7000 ATEN International Co., Ltd
Bus 002 Device 001: ID 0000:0000
Bus 002 Device 005: ID 413c:2003 Dell Computer Corp.
Bus 004 Device 002: ID 413c:2003 Dell Computer Corp.
Bus 004 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 005 Device 001: ID 0000:0000
Bus 006 Device 006: ID 090c:1000 Feiya Technology Corp. Memory Bar
Bus 006 Device 001: ID 0000:0000

What I would do to troubleshoot is the following..

Make sure the USB flash drive is NOT plugged into your machine

Open a command shell and type the following
tail -n 0 -f /var/log/messages

now plug in your USB flash drive

you should see some output similar to the following.

Code:

it-etch:~# tail -n 0 -f /var/log/messages
May 23 11:14:33 it-etch kernel: usb 6-8: new high speed USB device using ehci_hcd and address 6
May 23 11:14:33 it-etch kernel: usb 6-8: configuration #1 chosen from 1 choice
May 23 11:14:33 it-etch kernel: scsi6 : SCSI emulation for USB Mass Storage devices
May 23 11:14:38 it-etch kernel:   Vendor: USB 2.0   Model: Flash Disk        Rev: 1100
May 23 11:14:38 it-etch kernel:   Type:   Direct-Access                      ANSI SCSI revision: 00
May 23 11:14:38 it-etch kernel: SCSI device sdb: 3963904 512-byte hdwr sectors (2030 MB)
May 23 11:14:38 it-etch kernel: sdb: Write Protect is off
May 23 11:14:38 it-etch kernel: SCSI device sdb: 3963904 512-byte hdwr sectors (2030 MB)
May 23 11:14:38 it-etch kernel: sdb: Write Protect is off
May 23 11:14:38 it-etch kernel:  sdb: sdb1
May 23 11:14:38 it-etch kernel: sd 6:0:0:0: Attached scsi removable disk sdb
May 23 11:14:38 it-etch kernel: sd 6:0:0:0: Attached scsi generic sg1 type 0

as you can see above it detected my USB Flash drive as /dev/sdb

and I would mount it as /dev/sdb1

mkdir /media/usbflash
mount /dev/sdb1 /media/usbflash

if that works you can add an entry into your /etc/fstab file to allow regular users to mount the flash drive. something similar to the following
/dev/sda1 /media/usbflash auto users,noauto 0 0

if that doesn't work you may want to make sure the usb and usb-storage modules are loaded.

Code:

userer@it-etch:~$ lsmod | grep usb
usbhid                 37248  0
usb_storage            72000  1
scsi_mod              124168  5 sg,sd_mod,usb_storage,ahci,libata
ide_core              110504  5 ide_generic,ide_cd,usb_storage,generic,atiixp
usbcore               112644  5 usbhid,usb_storage,ehci_hcd,ohci_hcd

take a look and find out what you see. post the output back here if you are still having difficulties.

sujata pulugurta · 05-24-2008, 11:31 AM

Thank you for your quick response

I tried step by step ..

First of all lsusb doesnot recognize by the system..

[root@localhost root]# lsusb
bash: lsusb: command not found

next step..

[root@localhost root]# tail -n 0 -f /var/log/messages
May 24 21:37:24 localhost kernel: hub 4-0:0: new USB device on port 5, assigned address 2

then ..

[root@localhost root]# lsmod | grep usb
usbcore 87900 4 ehci_hcd,uhci_hcd

By comparing your output to mine i think so some modules are missing..
please guide me how to install the missing modules...

Is the problem lies in missing modules? or there is some other problem.