Comment 12 for bug 610652

Just found this one after posting on #946022. I have the same problem. For me it occurs around half the time. Fails in the same way in grub:

 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,044 DEBUG : ['chroot', '/tmp/tmpgvQfyy', 'grub', '--device-map=/tmp/vmbuilder-grub/device.map', '--batch']
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,044 DEBUG : stdin was set and it was a string: root (hd0,0)
 ** [out :: host-nwtn1.nwtn] setup (hd0)
 ** [out :: host-nwtn1.nwtn] EOT
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,197 DEBUG :
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,197 DEBUG : [ Minimal BASH-like line editing is supported. For
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,198 DEBUG : the first word, TAB lists possible command
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,198 DEBUG : completions. Anywhere else TAB lists the possible
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,198 DEBUG : completions of a device/filename. ]
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,198 DEBUG : grub> root (hd0,0)
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,198 DEBUG : grub> setup (hd0)
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,198 DEBUG : Checking if "/boot/grub/stage1" exists... no
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,199 DEBUG : Checking if "/grub/stage1" exists... no
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,199 DEBUG :
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,199 DEBUG : Error 15: File not found
 ** [out :: host-nwtn1.nwtn] 2013-03-17 10:52:33,199 DEBUG : grub> EOT

My full failed & successful logs are attached to #946022.