[Bug 574198] [NEW] USB flash drive and hard drive are not mounted

Mon May 3 05:49:28 UTC 2010

Public bug reported:

I have an Acer netbook with a fresh install of Lucid. It does not mount
USB flash drives properly:

1. if I plug in a USB drive (flash or HD), it does not appear in Nautilus
2. if I plug in a second USB drive (either type), the second one appears as expected.

Provided that I do not remove the first device, I can then remove the
second one then replace it, or plug in a different device. It seems as
though the first USB drive plugged in triggers some activity that allows
the second one to be recognised.

Both devices are recognised correctly, as shown by lsusb. I use two

Both devices have entries in /dev: they are given /dev/sdc, /dev/sdc1,
/dev/sdd and /dev/sdd1 as expected.

I can mount the first device using mount (sudo mkdir /mnt/test; sudo
mount /dev/sdc1 /mnt/test).

There are no errors reported, so this is not a duplicate of lp:515023

Although these are not I have tried both with and without the
modification to /lib/udev/rules.d/85-hdparm.rules suggested in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/548513/comments/20

uname -a
Linux xxxxxx 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:10:02 UTC 2010 i686 GNU/Linux

/proc/version_signature
Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2

Output from lsusb:
Bus 001 Device 005: ID 05e3:0723 Genesys Logic, Inc. 
Bus 001 Device 004: ID 05e3:0723 Genesys Logic, Inc. 

Output from dmesg

Plug in first USB flash drive
[  277.569145] usb 1-2: new high speed USB device using ehci_hcd and address 4
[  277.714531] usb 1-2: configuration #1 chosen from 1 choice
[  277.718587] scsi3 : SCSI emulation for USB Mass Storage devices
[  277.719578] usb-storage: device found at 4
[  277.719625] usb-storage: waiting for device to settle before scanning
[  282.717753] usb-storage: device scan complete
[  282.719041] scsi 3:0:0:0: Direct-Access     Generic  STORAGE DEVICE   9451 PQ: 0 ANSI: 0
[  282.737832] sd 3:0:0:0: Attached scsi generic sg2 type 0
[  282.960275] sd 3:0:0:0: [sdc] 3862528 512-byte logical blocks: (1.97 GB/1.84 GiB)
[  282.961645] sd 3:0:0:0: [sdc] Write Protect is off
[  282.961662] sd 3:0:0:0: [sdc] Mode Sense: 03 00 00 00
[  282.961674] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[  282.966266] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[  282.966290]  sdc: sdc1
[  282.971610] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[  282.971628] sd 3:0:0:0: [sdc] Attached SCSI removable disk

Plug in second USB flash drive
[  303.132156] usb 1-3: new high speed USB device using ehci_hcd and address 5
[  303.277873] usb 1-3: configuration #1 chosen from 1 choice
[  303.279240] scsi4 : SCSI emulation for USB Mass Storage devices
[  303.281465] usb-storage: device found at 5
[  303.281479] usb-storage: waiting for device to settle before scanning
[  308.282933] usb-storage: device scan complete
[  308.284655] scsi 4:0:0:0: Direct-Access     Generic  STORAGE DEVICE   9451 PQ: 0 ANSI: 0
[  308.296410] sd 4:0:0:0: Attached scsi generic sg3 type 0
[  308.555538] sd 4:0:0:0: [sdd] 3862528 512-byte logical blocks: (1.97 GB/1.84 GiB)
[  308.557003] sd 4:0:0:0: [sdd] Write Protect is off
[  308.557072] sd 4:0:0:0: [sdd] Mode Sense: 03 00 00 00
[  308.557087] sd 4:0:0:0: [sdd] Assuming drive cache: write through
[  308.563168] sd 4:0:0:0: [sdd] Assuming drive cache: write through
[  308.563197]  sdd: sdd1
[  308.573411] sd 4:0:0:0: [sdd] Assuming drive cache: write through
[  308.573437] sd 4:0:0:0: [sdd] Attached SCSI removable disk
[ 1063.956549] usb 1-3: USB disconnect, address 5
[ 1072.276103] usb 1-3: new high speed USB device using ehci_hcd and address 6
[ 1072.410343] usb 1-3: configuration #1 chosen from 1 choice
[ 1072.411368] scsi5 : SCSI emulation for USB Mass Storage devices

Unplug second USB flash drive
[ 1063.956549] usb 1-3: USB disconnect, address 5

Plug in a USB hard drive
[ 1072.412762] usb-storage: device found at 6
[ 1072.412779] usb-storage: waiting for device to settle before scanning
[ 1077.412475] usb-storage: device scan complete
[ 1077.413162] scsi 5:0:0:0: Direct-Access     Generic  External         1.08 PQ: 0 ANSI: 4
[ 1077.419676] sd 5:0:0:0: Attached scsi generic sg3 type 0
[ 1077.432679] sd 5:0:0:0: [sdd] 312581808 512-byte logical blocks: (160 GB/149 GiB)
[ 1077.434730] sd 5:0:0:0: [sdd] Write Protect is off
[ 1077.434743] sd 5:0:0:0: [sdd] Mode Sense: 23 00 00 00
[ 1077.434751] sd 5:0:0:0: [sdd] Assuming drive cache: write through
[ 1077.436603] sd 5:0:0:0: [sdd] Assuming drive cache: write through
[ 1077.436623]  sdd: sdd1
[ 1077.461862] sd 5:0:0:0: [sdd] Assuming drive cache: write through
[ 1077.461886] sd 5:0:0:0: [sdd] Attached SCSI disk

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

-- 
USB flash drive and hard drive are not mounted
https://bugs.launchpad.net/bugs/574198
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