Device not configured

[David Naylor]

On Thursday 17 December 2009 02:56:12 Warren Block wrote:
> On Wed, 16 Dec 2009, David Naylor wrote:
> > I booted into single user mode (running FreeBSD 8 RC2) and did:
> >
> > # dd if=/dev/ad8 of=/dev/ad8 bs=1024k
> 
> That command copies the hard drive... over itself.  What were you trying
> to do?

The dd manpages mentioned this might help with errors on the HDD.  I'm trying 
to eliminate problems relating to VirtualBox and DMA errors an ad8.  

> > After waiting a few hours the command completed without problem (ad8 is
> > the HDD that has FreeBSD).  After that I got the following:
> >
> > # reboot
> > reboot: device not configured
> > # ls
> > vnode_pager_getpages: I/O read error
> > ls: device not configured
> 
> Not good.  Maybe trying to swap back in from swap that was just
> overwritten?

No swap was active at that time

> > Pressing the boxes power button results in the above vnode message to
> > spam the screen.  The only way to reset the system was to do a hard reset
> > (root was ro
> >
> > :-) ).
> 
> Did it come back up?

Yes, all data is still there, as before.  

> > Is this expected behaviour or something wrong with the HDD?
> 
> Not expected, exactly, but not surprising.  The hardware should be fine.

Well, no harm done.  

Thanks for your reply

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