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On Thu, 17 Nov 2005, Dirk Heinrichs wrote: |
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|
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> Am Donnerstag, 17. November 2005 10:26 schrieb ext Jorge Almeida: |
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> |
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> > I have a USB memory stick and an external USB box with an IDE disk. |
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> > I configured udev to assign device names to both items, or so I thought. |
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> > The external box is plugged, the memory stick isn't. |
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> > The problem is: the device for the box is not created, and the memstick |
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> > device exists but represents the box, not the stick. I read |
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> |
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> Some questions: |
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> |
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> What's your udev and kernel version? |
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> |
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sys-fs/udev-070-r1 |
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2.6.13-gentoo-r3 |
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|
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> Did you configure your kernel to use USB storage (if in doubt, post your |
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> kernel config)? |
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|
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Yes, and I can use the devices (write and read files...). |
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|
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CONFIG_USB_STORAGE=y |
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(...) |
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# SCSI device support |
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# |
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CONFIG_SCSI=y |
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CONFIG_SCSI_PROC_FS=y |
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|
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# |
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# SCSI support type (disk, tape, CD-ROM) |
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# |
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CONFIG_BLK_DEV_SD=y |
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|
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> |
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> Does the system detect the devices when you plug them in (post the last few |
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> lines of dmesg output after plugging in each device) |
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> |
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ipt_recent v0.3.1: Stephen Frost <sfrost@×××××××.net>. |
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http://snowman.net/projects/ipt_recent/ |
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spurious 8259A interrupt: IRQ7. |
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EXT3 FS on hda6, internal journal |
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usb 1-3: new high speed USB device using ehci_hcd and address 3 |
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scsi0 : SCSI emulation for USB Mass Storage devices |
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usb-storage: device found at 3 |
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usb-storage: waiting for device to settle before scanning |
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Vendor: Maxtor 6 Model: L250R0 Rev: BAH4 |
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Type: Direct-Access ANSI SCSI revision: 00 |
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SCSI device sda: 490234752 512-byte hdwr sectors (251000 MB) |
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sda: assuming drive cache: write through |
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SCSI device sda: 490234752 512-byte hdwr sectors (251000 MB) |
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sda: assuming drive cache: write through |
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sda: unknown partition table |
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Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 |
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usb-storage: device scan complete |
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SCSI device sda: 490234752 512-byte hdwr sectors (251000 MB) |
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sda: assuming drive cache: write through |
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sda: sda1 |
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SCSI device sda: 490234752 512-byte hdwr sectors (251000 MB) |
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sda: assuming drive cache: write through |
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sda: sda1 |
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kjournald starting. Commit interval 5 seconds |
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EXT3 FS on sda1, internal journal |
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EXT3-fs: mounted filesystem with ordered data mode. |
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kjournald starting. Commit interval 5 seconds |
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EXT3 FS on sda1, internal journal |
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EXT3-fs: mounted filesystem with ordered data mode. |
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kjournald starting. Commit interval 5 seconds |
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EXT3 FS on sda1, internal journal |
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EXT3-fs: mounted filesystem with ordered data mode. |
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FAT: "conv=auto" option is obsolete, not supported now |
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FAT: "posix" option is obsolete, not supported now |
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FAT: bogus number of reserved sectors |
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VFS: Can't find a valid FAT filesystem on dev sda1. |
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kjournald starting. Commit interval 5 seconds |
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EXT3 FS on sda1, internal journal |
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EXT3-fs: mounted filesystem with ordered data mode. |
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kjournald starting. Commit interval 5 seconds |
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EXT3 FS on sda1, internal journal |
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EXT3-fs: mounted filesystem with ordered data mode. |
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|
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The memstick has a vfat in it (original). The external disk has 1 |
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partition with ext3. |
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The line in /etc/fstab corresponding to the memstick (the disk doesn't |
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have one, yet): |
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/dev/plextor_memstick1 /mnt/pen vfat noauto,user,noexec,nodev,rw,noatime,conv=auto,uni_xlate,posix 0 0 |
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|
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Now I plugged the memstick. dmesg says: |
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|
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usb 1-7: new high speed USB device using ehci_hcd and address 4 |
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usb 1-7: device descriptor read/64, error -71 |
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scsi1 : SCSI emulation for USB Mass Storage devices |
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usb-storage: device found at 4 |
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usb-storage: waiting for device to settle before scanning |
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usb 1-7: reset high speed USB device using ehci_hcd and address 4 |
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Vendor: PLEXTOR Model: PlexFlash-2 Rev: 5.02 |
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Type: Direct-Access ANSI SCSI revision: 00 |
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usb 1-7: reset high speed USB device using ehci_hcd and address 4 |
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usb 1-7: reset high speed USB device using ehci_hcd and address 4 |
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usb 1-7: reset high speed USB device using ehci_hcd and address 4 |
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usb 1-7: reset high speed USB device using ehci_hcd and address 4 |
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usb 1-7: reset high speed USB device using ehci_hcd and address 4 |
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usb 1-7: reset high speed USB device using ehci_hcd and address 4 |
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sdb: Write Protect is on |
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sdb: Mode Sense: 45 00 80 08 |
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sdb: assuming drive cache: write through |
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Attached scsi removable disk sdb at scsi1, channel 0, id 0, lun 0 |
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usb-storage: device scan complete |
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|
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> What does udevinfo -a -p $(udevinfo -q path -n /dev/sdX) tell you (replace X |
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> with the appropriate letter for each device)? |
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> |
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$ udevinfo -a -p $(udevinfo -q path -n /dev/sda) |
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|
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udevinfo starts with the device the node belongs to and then walks up the |
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device chain, to print for every device found, all possibly useful attributes |
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in the udev key format. |
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Only attributes within one device section may be used together in one rule, |
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to match the device for which the node will be created. |
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|
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device '/sys/block/sda' has major:minor 8:0 |
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looking at class device '/sys/block/sda': |
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KERNEL=="sda" |
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SUBSYSTEM=="block" |
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SYSFS{dev}=="8:0" |
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SYSFS{range}=="16" |
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SYSFS{removable}=="0" |
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SYSFS{size}=="490234752" |
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SYSFS{stat}==" 105 547 1975 616 5584 619494 1250606 3500080 0 25620 3500696" |
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|
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follow the "device"-link to the physical device: |
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looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-3/1-3:1.0/host0/target0:0:0/0:0:0:0': |
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BUS=="scsi" |
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ID=="0:0:0:0" |
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DRIVER=="sd" |
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SYSFS{device_blocked}=="0" |
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SYSFS{iocounterbits}=="32" |
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SYSFS{iodone_cnt}=="0x1642" |
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SYSFS{ioerr_cnt}=="0x0" |
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SYSFS{iorequest_cnt}=="0x1642" |
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SYSFS{max_sectors}=="240" |
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SYSFS{model}=="L250R0 " |
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SYSFS{queue_depth}=="1" |
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SYSFS{queue_type}=="none" |
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SYSFS{rev}=="BAH4" |
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SYSFS{scsi_level}=="3" |
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SYSFS{state}=="running" |
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SYSFS{timeout}=="30" |
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SYSFS{type}=="0" |
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SYSFS{vendor}=="Maxtor 6" |
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|
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looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-3/1-3:1.0/host0/target0:0:0': |
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BUS=="" |
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ID=="target0:0:0" |
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DRIVER=="unknown" |
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|
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looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-3/1-3:1.0/host0': |
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BUS=="" |
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ID=="host0" |
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DRIVER=="unknown" |
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|
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looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-3/1-3:1.0': |
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BUS=="usb" |
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ID=="1-3:1.0" |
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DRIVER=="usb-storage" |
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SYSFS{bAlternateSetting}==" 0" |
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SYSFS{bInterfaceClass}=="08" |
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SYSFS{bInterfaceNumber}=="00" |
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SYSFS{bInterfaceProtocol}=="50" |
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SYSFS{bInterfaceSubClass}=="06" |
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SYSFS{bNumEndpoints}=="02" |
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SYSFS{modalias}=="usb:v067Bp3507d0100dc00dsc00dp00ic08isc06ip50" |
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|
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looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-3': |
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BUS=="usb" |
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ID=="1-3" |
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DRIVER=="usb" |
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SYSFS{bConfigurationValue}=="1" |
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SYSFS{bDeviceClass}=="00" |
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SYSFS{bDeviceProtocol}=="00" |
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SYSFS{bDeviceSubClass}=="00" |
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SYSFS{bMaxPacketSize0}=="64" |
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SYSFS{bMaxPower}=="100mA" |
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SYSFS{bNumConfigurations}=="1" |
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SYSFS{bNumInterfaces}==" 1" |
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SYSFS{bcdDevice}=="0100" |
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SYSFS{bmAttributes}=="c0" |
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SYSFS{configuration}=="" |
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SYSFS{devnum}=="3" |
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SYSFS{idProduct}=="3507" |
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SYSFS{idVendor}=="067b" |
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SYSFS{manufacturer}=="Prolific Technology Inc." |
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SYSFS{maxchild}=="0" |
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SYSFS{product}=="Mass Storage Device" |
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SYSFS{serial}=="0" |
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SYSFS{speed}=="480" |
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SYSFS{version}==" 2.00" |
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|
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looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.7/usb1': |
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BUS=="usb" |
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ID=="usb1" |
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DRIVER=="usb" |
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SYSFS{bConfigurationValue}=="1" |
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SYSFS{bDeviceClass}=="09" |
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SYSFS{bDeviceProtocol}=="01" |
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SYSFS{bDeviceSubClass}=="00" |
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SYSFS{bMaxPacketSize0}=="8" |
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SYSFS{bMaxPower}==" 0mA" |
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SYSFS{bNumConfigurations}=="1" |
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SYSFS{bNumInterfaces}==" 1" |
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SYSFS{bcdDevice}=="0206" |
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SYSFS{bmAttributes}=="e0" |
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SYSFS{configuration}=="" |
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SYSFS{devnum}=="1" |
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SYSFS{idProduct}=="0000" |
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SYSFS{idVendor}=="0000" |
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SYSFS{manufacturer}=="Linux 2.6.13-gentoo-r3 ehci_hcd" |
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SYSFS{maxchild}=="8" |
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SYSFS{product}=="Intel Corporation 82801EB/ER _ICH5/ICH5R_ USB2 EHCI Controller" |
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SYSFS{serial}=="0000:00:1d.7" |
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SYSFS{speed}=="480" |
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SYSFS{version}==" 2.00" |
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|
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looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.7': |
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BUS=="pci" |
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ID=="0000:00:1d.7" |
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DRIVER=="ehci_hcd" |
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SYSFS{class}=="0x0c0320" |
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SYSFS{device}=="0x24dd" |
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SYSFS{irq}=="10" |
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SYSFS{local_cpus}=="1" |
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SYSFS{modalias}=="pci:v00008086d000024DDsv00001462sd00007280bc0Csc03i20" |
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SYSFS{subsystem_device}=="0x7280" |
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SYSFS{subsystem_vendor}=="0x1462" |
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SYSFS{vendor}=="0x8086" |
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|
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looking at the device chain at '/sys/devices/pci0000:00': |
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BUS=="" |
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ID=="pci0000:00" |
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DRIVER=="unknown" |
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|
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After plugging the memstick: |
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|
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$ udevinfo -a -p $(udevinfo -q path -n /dev/sdb) |
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no record for 'sdb' in database |
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udevinfo: option requires an argument -- p |
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Usage: udevinfo [-anpqrVh] |
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(etc) |
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> Maybe we can sort this out. |
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> |
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> Bye... |
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> |
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> Dirk |
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> |
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Thanks. |
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|
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|
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Jorge |
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-- |
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