Wubi gives me error executing command:
command=C:\Windows\System32\bcdedit.exe /set {79d57369-10fa-11e2-a539-af7634f5111e} device partition=F:
retval=1
stderr=An error has occurred setting the element data.
Wubi gives me error executing command:
command=C:\Windows\System32\bcdedit.exe /set {79d57369-10fa-11e2-a539-af7634f5111e} device partition=F:
retval=1
stderr=An error has occurred setting the element data.
Sorry if this is the wrong answer, but it sounds like you're trying to install Ubuntu to a Windows Dynamic Disk:
http://msdn.microsoft.com/en-us/library/windows/desktop/aa363785%28v=vs.85%29.aspx http://technet.microsoft.com/en-us/library/cc737048.aspx
Neither Wubi nor the GRUB bootloader support this, you'll need to install to a Basic Disk.