Ubuntu
linux-source-2.6.15 package

device nodes not being created for external usb harddrive

Bug #44332 reported by KarlGoetz
10
Affects Status Importance Assigned to Milestone
linux-source-2.6.15 (Ubuntu)
Invalid
Medium
Unassigned

Bug Description

Binary package hint: udev

This has happened on both Ubuntu Breezy, Edubuntu Dapper and Ubuntu Dapper.

Steps to repeat:
plug in USB hdd
turn on hdd
kernel spits out text into dmesg
no device node is created

This device is on loan to me for to try and fix this (i am told it came with drivers for windows fwiw).

I will attach the output of dmesg

Revision history for this message
KarlGoetz (kgoetz) wrote : Output of dmesg

in this output the device has been turned on and off a few times. If its plugged in and left alone it stil fails to create devices, and echos different text (see next attachment)

Revision history for this message
KarlGoetz (kgoetz) wrote : dmesg when idling

This is from an Ubuntu Dapper system (the first log is from Edubuntu Dapper). This was left alone for a few hours to see what it would do.

Revision history for this message
Scott James Remnant (Canonical) (canonical-scott) wrote :

Is a kernel problem

Revision history for this message
Ben Collins (ben-collins) wrote :

Pretty sure this is a USB2 problem. Try doing the following command after disconnecting the drive: sudo rmmod ehci_hcd

You should then be able to plug the device back in and have it mounted.

Revision history for this message
KarlGoetz (kgoetz) wrote : Re: [Bug 44332] Re: device nodes not being created for external usb harddrive

Ben Collins wrote:
> *** This bug is a duplicate of bug 41229 ***
>
> Pretty sure this is a USB2 problem. Try doing the following command
> after disconnecting the drive: sudo rmmod ehci_hcd

when i turn it off it echos "ERROR: Module ehci_hcd does not exist in
/proc/modules", and doesnt mount when its turned on again

Revision history for this message
KarlGoetz (kgoetz) wrote :

Ben Collins wrote:
> *** This bug is a duplicate of bug 41229 ***
>
> Pretty sure this is a USB2 problem. Try doing the following command
> after disconnecting the drive: sudo rmmod ehci_hcd

when i turn it off it echos "ERROR: Module ehci_hcd does not exist in
/proc/modules", and still wont mount

Revision history for this message
KarlGoetz (kgoetz) wrote :

Although this is marked duplicate of bug #41229 , I still have problems. Now on the -15-23 kernel i dont even get output from dmesg when i plug it in.

ehci_hcd is not loaded (according to lsmod), only uhci_hcd

Revision history for this message
KarlGoetz (kgoetz) wrote :

I no longer have access to this device, so this bug can be rejected if you want.

Scott James Remnant (Canonical) (canonical-scott)
Changed in linux-source-2.6.15:
status: Unconfirmed → Rejected
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