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?
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?
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?
Is this expected behaviour or something wrong with the HDD?
Not expected, exactly, but not surprising. The hardware should be fine.
I have been having issues with VirtualBox where doing IO (network and HDD)
causes DMA problems resulting in the system panicing and rebooting. Could
this be related?
That sounds like a separate problem.
-Warren Block * Rapid City, South Dakota USA
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