On Sun, 26 Dec 2004, David Relson wrote:

> Attached is the khubd output.  Indeed I was in an X session and was
> simultaneously pressing the three keys, Alt, SysRq, and T.  I'd
> characterize what happened afterwards as "an immediate shutdown".
> 
> I've been building kernels all afternoon, but they've all had problems
> booting, i.e. "kernelpanic - not syncing: VFS: Unable to mount root fs
> on unknown-block 3,1" and I've got a query on the Mandrake list to find
> out what's happening.

Beats me what that's all about -- maybe you need an initrd image or some 
driver that is configured as a module to be compiled into the kernel.

Judging from your khubd listing, I would guess that the system was in the
middle of a timeout, and if you would wait long enough (which might be
several minutes) things would get going again.  That is, khubd would
unblock, you would be able to cat /proc/bus/usb/devices, and so on,
although the Cypress device probably would not be working.

Alan Stern



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