I have this problem too - it's happening on roughly half my slice builds. It seems to be due to the grub installation failing, here's what it shows for a build that won't boot:
** [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 And here's what it shows for a build that does boot: ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,423 DEBUG : ['chroot', '/tmp/tmpnUU59C', 'grub', '--device-map=/tmp/vmbuilder-grub/device.map', '--batch'] ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,424 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] ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,599 DEBUG : ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,599 DEBUG : [ Minimal BASH-like line editing is supported. For ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,599 DEBUG : the first word, TAB lists possible command ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,599 DEBUG : completions. Anywhere else TAB lists the possible ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,599 DEBUG : completions of a device/filename. ] ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,599 DEBUG : grub> root (hd0,0) ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,600 DEBUG : grub> setup (hd0) ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,600 DEBUG : Checking if "/boot/grub/stage1" exists... yes ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,600 DEBUG : Checking if "/boot/grub/stage2" exists... yes ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,600 DEBUG : Checking if "/boot/grub/e2fs_stage1_5" exists... yes ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,600 DEBUG : Running "embed /boot/grub/e2fs_stage1_5 (hd0)"... 21 sectors are embedded. ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,600 DEBUG : succeeded ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,600 DEBUG : Running "install /boot/grub/stage1 (hd0) (hd0)1+21 p (hd0,0)/boot/grub/stage2 /boot/grub/menu.lst"... succeeded ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,600 DEBUG : Done. ** [out :: host-nwtn1.nwtn] 2013-03-17 11:00:01,600 DEBUG : grub> EOT There are some other errors elsewhere in the process that may or may not be significant. I've attached the full log for both the failed and successful builds. ** Attachment added: "failure.txt" https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/946022/+attachment/3578569/+files/failure.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vm-builder in Ubuntu. https://bugs.launchpad.net/bugs/946022 Title: KVM Guest Hangs at Booting from hard disk To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vm-builder/+bug/946022/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
