USB flash drive mapped in a wrong device

Hi all.

I've a problem mounting an USB flash drive. When I plug the flash drive, I can see on the first terminal window (CTRL+F1) the information about the pen drive and the device to be use on the access (sdb). But when I try to mount it I get some troubles:

Code:

# mount /dev/sdb /mnt/removable mount: you must specify the filesystem type

So, I try with many filesystems without success (fat, vfat, fat16, fat32, nfs, ufs, usbfs, autofs)

Code:

# mount -t autofs /dev/sdb /mnt/removable mount: wrong fs type, bad option, bad superblock on /dev/sdb, or too many mounted dile systems

After many days on search, I realise that the device /dev/sdb is created "on-the-fly", when I plug the USB flash drive and it is pointing to /dev/scsi/host*/bus0/target0/lun0/disc where the * is changed by a number > 2 and it depends of the times I plug and unplug it (e.g. If I plug it and unplug it 3 times, at the 3rd plug time it will point to /dev/scsi/host5/....). After some tries I saw that I can mount it manualy using the command:

Code:

# mount /dev/scsi/host*/bus0/target0/lun0/part1 /mnt/removable

With this I can access all the content of the flash drive.

Now I need to chage /dev/sdb -> /dev/scsi/host*/bus0/target0/lun0/disc to /dev/sdb -> /dev/scsi/host*/bus0/target0/lun0/part1 and I don't know how to do that.

Any Ideas???

More Info:
-> Dell precision M70
-> lsmod

Code:

[root@localhost ~]# lsmod Module Size Used by nls_iso8859_1 3904 0 nls_cp437 5568 0 vfat 12768 0 fat 41184 1 vfat autofs4 17956 0 nfsd 203360 8 exportfs 5632 1 nfsd parport_pc 36420 0 lp 12296 0 parport 34376 2 parport_pc,lp ipv6 244160 8 ipmi_si 31974 1 ipmi_msghandler 50664 1 ipmi_si i810_audio 35796 0 ac97_codec 17452 1 i810_audio soundcore 9312 1 i810_audio af_packet 21128 0 tg3 80644 0 tsdev 7456 0 joydev 9728 0 evdev 9184 0 usbmouse 5280 0 nvidia 4086352 14 usbhid 43104 0 agpgart 33224 1 nvidia usb_storage 64704 0 ehci_hcd 29572 0 uhci_hcd 31792 0 usbcore 114136 6 usbmouse,usbhid,usb_storage,ehci_hcd,uhci_hcd rtc 11448 0 ext3 128840 2 jbd 54072 1 ext3 sd_mod 17360 4 ata_piix 8644 3 libata 44900 1 ata_piix scsi_mod 123488 3 usb_storage,sd_mod,libata

-> fdisk

Code:

[root@localhost ~]# fdisk -l Disk /dev/sda: 60.0 GB, 60011642880 bytes 255 heads, 63 sectors/track, 7296 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 892 7164958+ 83 Linux /dev/sda2 893 7296 51440130 5 Extended /dev/sda5 893 1146 2040223+ 82 Linux swap /dev/sda6 1147 7296 49399843+ 83 Linux Disk /dev/sdb: 497 MB, 497549312 bytes 16 heads, 32 sectors/track, 1898 cylinders Units = cylinders of 512 * 512 = 262144 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 1 1898 485872 6 FAT16 Disk /dev/sdc: 1 MB, 1474560 bytes 1 heads, 3 sectors/track, 960 cylinders Units = cylinders of 3 * 512 = 1536 bytes Device Boot Start End Blocks Id System /dev/sdc1 ? 623257122 679486963 84344761 69 Unknown Partition 1 has different physical/logical beginnings (non-Linux?): phys=(68, 13, 10) logical=(623257121, 0, 3) Partition 1 has different physical/logical endings: phys=(288, 115, 43) logical=(679486962, 0, 1) Partition 1 does not end on cylinder boundary. /dev/sdc2 ? 567173161 1190466982 934940732+ 73 Unknown Partition 2 has different physical/logical beginnings (non-Linux?): phys=(371, 114, 37) logical=(567173160, 0, 2) Partition 2 has different physical/logical endings: phys=(366, 32, 33) logical=(1190466981, 0, 3) Partition 2 does not end on cylinder boundary. /dev/sdc3 ? 858 858 0 74 Unknown Partition 3 has different physical/logical beginnings (non-Linux?): phys=(371, 114, 37) logical=(857, 0, 3) Partition 3 has different physical/logical endings: phys=(372, 97, 50) logical=(857, 0, 2) Partition 3 does not end on cylinder boundary. /dev/sdc4 1 1145037824 1717556736 0 Empty Partition 4 has different physical/logical beginnings (non-Linux?): phys=(0, 0, 0) logical=(0, 0, 1) Partition 4 has different physical/logical endings: phys=(0, 0, 0) logical=(1145037823, 0, 3) Partition 4 does not end on cylinder boundary. Partition table entries are not in disk order

-> uname -a

Code:

[root@localhost ~]# uname -a Linux localhost 2.6.10 #1 Mon Feb 6 17:43:26 CET 2006 i686 unknown unknown GNU/Linux

-> kernelversion

Code:

[root@localhost ~]# kernelversion 2.6

-> cat /etc/fstab

Code:

[root@localhost ~]# cat /etc/fstab /dev/sda1 / ext3 defaults 1 1 /dev/sda6 /data_local ext3 defaults 1 2 none /dev/pts devpts mode=0620 0 0 none /mnt/hd supermount dev=/dev/scsi/host2/bus0/target0/lun0/part1,fs=ext2:vfat,--,umask=0,iocharset=iso8859-1,kudzu,codepage=850 0 0 none /mnt/removable supermount dev=/dev/sdb,fs=auto 0 0 dev=/dev/scsi/host6/bus0/target0/lun0/part1,fs=ext2:vfat,--,umask=0,iocharset=iso8859-1,kudzu,codepage=850 0 0 none /proc proc defaults 0 0 /dev/sda5 swap swap defaults 0 0

the problem you are having here is that you are trying to mount the device, not the partition, instead of

Code:

mount /dev/sdb /mnt/removable

try

Code:

mount /dev/sdb1 /mnt/removable

That will mount the first (and most likely only) partition of the pen drive to /mnt/removable

Hi.
Thanks for the help, but did't work.

When I try

Code:

mount /dev/sdb1 /mnt/removable

I receive the error

Code:

mount: /dev/sdb1 is not a block device

and when I make ls -ls /dev/
I get:

Code:

... lr-xr-xr-x 1 root root 33 May 18 10:13 sdb -> scsi/host5/bus0/target0/lun0/disc drwxr-xr-x 1 root root 0 May 17 19:34 sdb1/ lr-xr-xr-x 1 root root 33 May 18 10:13 sdc -> scsi/host5/bus0/target0/lun1/disc ...

So, with this information we can see that sdb1 is a directory and maybe is because of that I can't mount it.
Now, as you can see sdb is pointing to scsi/host5/bus0/target0/lun0/disc but I think it must point to scsi/host5/bus0/target0/lun0/part1 which is the one I can mount manualy. How can change the target of sdb?

Tks.

Quote:

Originally Posted by hclima

Now, as you can see sdb is pointing to scsi/host5/bus0/target0/lun0/disc but I think it must point to scsi/host5/bus0/target0/lun0/part1 which is the one I can mount manualy. How can change the target of sdb?

You can remove the sdb symlink

Code:

rm /dev/sdb

andd then to recreate it to point to the scsi/host5/bus0/target0/lun0/part1

Code:

ln -s /dev/scsi/host5/bus0/target0/lun0/part1 sdb

Though what u may wanna do is link it to another device temporarily to check it works, and leave the sdb link there for now... Just link it to sdc or something like that so you know, then try mounting /dev/sdc instead of sdb

Code:

rm /dev/sdb ln -s /dev/scsi/host5/bus0/target0/lun0/part1 sdb mount /dev/sdb /mnt/removable

worked but just while when I've the usb flash pluged in, because if I unplug it and plug it again, I had the same scenary as before.
But I've a new issue, I watch the /var/log/messages file and the output is:

Code:

May 18 11:42:54 localhost kernel: usb 5-5: new high speed USB device using ehci_hcd and address 8 May 18 11:42:54 localhost modprobe: FATAL: Module scsimon not found. May 18 11:42:54 localhost kernel: scsi7 : SCSI emulation for USB Mass Storage devices May 18 11:42:59 localhost kernel: Vendor: Model: USB DISK Pro Rev: PMAP May 18 11:42:59 localhost kernel: Type: Direct-Access ANSI SCSI revision: 00 May 18 11:43:00 localhost kernel: SCSI device sdb: 971776 512-byte hdwr sectors (498 MB) May 18 11:43:00 localhost kernel: sdb: assuming Write Enabled May 18 11:43:00 localhost kernel: sdb: assuming drive cache: write through May 18 11:43:00 localhost kernel: SCSI device sdb: 971776 512-byte hdwr sectors (498 MB) May 18 11:43:00 localhost kernel: sdb: assuming Write Enabled May 18 11:43:00 localhost kernel: sdb: assuming drive cache: write through May 18 11:43:00 localhost kernel: /dev/scsi/host7/bus0/target0/lun0: p1 May 18 11:43:00 localhost kernel: Attached scsi removable disk sdb at scsi7, channel 0, id 0, lun 0 May 18 11:43:00 localhost kernel: Attached scsi generic sg1 at scsi7, channel 0, id 0, lun 0, type 0 May 18 11:43:00 localhost kernel: Vendor: Model: USB DISK Pro Rev: PMAP May 18 11:43:00 localhost kernel: Type: Direct-Access ANSI SCSI revision: 00 May 18 11:43:00 localhost kernel: SCSI device sdc: 2880 512-byte hdwr sectors (1 MB) May 18 11:43:00 localhost kernel: sdc: assuming Write Enabled May 18 11:43:00 localhost kernel: sdc: assuming drive cache: write through May 18 11:43:00 localhost kernel: SCSI device sdc: 2880 512-byte hdwr sectors (1 MB) May 18 11:43:00 localhost kernel: sdc: assuming Write Enabled May 18 11:43:00 localhost kernel: sdc: assuming drive cache: write through May 18 11:43:00 localhost kernel: /dev/scsi/host7/bus0/target0/lun1: unknown partition table May 18 11:43:00 localhost kernel: Attached scsi removable disk sdc at scsi7, channel 0, id 0, lun 1 May 18 11:43:00 localhost kernel: Attached scsi generic sg2 at scsi7, channel 0, id 0, lun 1, type 0 May 18 11:43:00 localhost perl: drakupdate_fstab called with --auto --add /dev/scsi/host7/bus0/target0/lun0/part1 May 18 11:43:00 localhost perl: suggest_mount_point: don't know what to with hd sdb1 May 18 11:43:00 localhost scsi.agent[7192]: disk at /devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:0 May 18 11:43:01 localhost scsi.agent[7226]: disk at /devices/pci0000:00/0000:00:1d.7/usb5/5-5/5-5:1.0/host7/target7:0:0/7:0:0:1

I don't know what means scsimon at the line "May 18 11:42:54 localhost modprobe: FATAL: Module scsimon not found.", I'm seaching at the net but till now, I've got nothing.
Do you know something?