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Re: [Debian-User] Something wrong with udev / usb?



On Feb 10, 2008 12:35 AM, Tzafrir Cohen <tzafrir@cohens.org.il> wrote:
>
> On Sat, Feb 09, 2008 at 08:12:18PM -0600, Javier Vasquez wrote:
> > Hi,
> >
> > I'm using kernels 2.6.23 and 2.6.24 (debian stock), and on them I
> > can't get my usb external disk to work.  There's no /dev/sd* device
> > showing up, although I have ehci-hcd and uhci-hcd modules up, I also
> > installed usb_storage and usbatm modules just  in case, but nothing...
> >
> > This used to work automatically with udev before (as soon as I
> > connected the usb device, I got /dev/sda or /dev/sa1, not sure which).
> >  I'm not sure with which kernel this stopped working.  The ones I have
> > available are just these 2 I mentioned...
>
> Do you see the device in lsusb ? If not, don't blame udev . Do you see
> its partitions in /proc/partitions ?
>
> You also mentioned a frontconnector. At least in some systems that
> connector is bad. In some systems it is unmasked, and therefore has
> lower speed. In a few other systems (like some VIA systems we have at
> work) it it a reboot swtich - you plug anything to the USB, and the
> system reboots.
>
> --
> Tzafrir Cohen         | tzafrir@jabber.org | VIM is

Actually yes, under lsusb I see:

# lsusb
usb 4-3: new high speed USB device using ehci_hcd and address 24
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000

But under /proc/partitions I didn't see any sd* partitions, just the hd* ones...

See that the manufacturer was not properly recognized though...

BTW, I was not using front connector, I'm sorry if I gave you that
impression.  I use a dell 600M inspiron laptop which comes with 2 back
connectors only...

Good news, is that without doing anything (not even rebooting), now I
tried again and I see /dev/sda and /dev/sda1, and I can mount them as
usual...  I can't say what happened then, which I don't really like
it...  When things work, this is lsusb:

# lsusb
Bus 004 Device 022: ID 1058:0403 Western Digital Technologies, Inc.
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000

Seems that I need to be trying the external usb disk more often these
days to see if this weird behavior happens again...

Any ways, the ghosts seem to be gone at least for now, :).

Thanks a lot,

Javier.


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