From: "Petr Kubánek" <petr@kubanek.net>
To: linux-hotplug@vger.kernel.org
Subject: How is /dev/bus/usb created - /dev/bus/usb lost during system
Date: Thu, 18 Mar 2010 01:24:58 +0000 [thread overview]
Message-ID: <1268875500.9683.64.camel@epsilon> (raw)
Hi,
I lost /dev/bus/usb during remote system upgrade (Ubuntu 9.04 -> 9.10)
on Watcher telescope control computer (@Boyden observatory, South
Africa).
I do not see /dev/bus/usb, and lsusb does not show anything. It worked
before, USB devices are present in dmesg, so I think USB subsystem is
working properly.
To debug this it will help me to know how udev creates and
populates /dev/bus/usb - which rule(s) does this, how to debug what
might be wrong.
We hit some problems during system upgrade, and I am pretty sure this is
related to them. I just need to debug the machine, which is while I am
in Europe and machine is in South Africa a bit difficult (and dangerous
to change anything, as it might not boot and then I have a problem
again..).
Thanks a lot for any hint.
Petr
next reply other threads:[~2010-03-18 1:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-18 1:24 Petr Kubánek [this message]
2010-03-18 2:48 ` How is /dev/bus/usb created - /dev/bus/usb lost during system Greg KH
2010-03-18 8:51 ` Martin Pitt
2010-03-18 10:03 ` Petr Kubánek
2010-03-18 10:21 ` Kay Sievers
2010-03-18 10:31 ` Petr Kubánek
2010-03-18 10:37 ` Martin Pitt
2010-03-18 10:41 ` Kay Sievers
2010-03-18 10:42 ` Petr Kubánek
2010-03-18 14:26 ` Petr Kubánek
2010-03-18 16:46 ` Scott James Remnant
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