[GTALUG] dmesg not reporting the mount point on USB insert
Lennart Sorensen
lsorense at csclub.uwaterloo.ca
Fri Mar 16 10:00:38 EDT 2018
On Thu, Mar 15, 2018 at 05:43:21PM -0400, Russell Reiter via talk wrote:
> On Mar 15, 2018 5:02 PM, "William Witteman via talk" <talk at gtalug.org>
> wrote:
>
> In the past, when I stuck a USB stick in to my computer, I would look
> at dmesg and see that the device had been assigned a place in /dev.
> This week, I can see the device's details (Lexar, Sandisk, whatever),
> but there is no line for where I can address that device. Graphical
> file managers are also not showing the inserted media (I have tried
> several different sticks and card readers).
>
> I imagine that something changed in Debian that has lead to this, but
> I can't tell what's missing. ehci is picking up the device insertion,
> but not giving me a place to use in a mount line. Anyone have any
> thoughts?
>
>
> Might need a new udev rule for whatever reason.
>
> If #lsusb output shows the device assignment you can use "udevadm info
> --attribute-walk --path=/dev/bus/usb/xxx/xxx
> in order to walk the path attributes and get the info needed by udev rules
> which are held in the rules.d directory.
>
> https://wiki.debian.org/udev
>
> If you start #udevadm monitor before inserting the stick you can monitor
> the system events on the fly.
Does 'lsusb -t' show the device.
I would think either usb-storage module isn't loaded, or the device is
not actually being detected. Since you say ehci detects it, then I
wonder if it just isn't being picked up as usb-storage.
--
Len Sroensen
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