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RE: [Xen-users] Re: Pygrub Installation

  • To: "Christian Tramnitz" <chris.ace@xxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "James Dingwall" <james.dingwall@xxxxxxxxxx>
  • Date: Thu, 13 Aug 2009 12:17:21 +0100
  • Cc:
  • Delivery-date: Thu, 13 Aug 2009 04:18:04 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: Acob/W5y4unHjpcqQT6WdyZqtLfEQQACakiA
  • Thread-topic: [Xen-users] Re: Pygrub Installation

>> The domU is a 64-bit Gentoo install. So far I have installed
>> (0.97-r9) into the domU, copied my existing kernel and ramdisk to
>> and setup the the grub.conf / menu.lst file. If I try now with the
>> loader then I get "Error: Boot loader didn't return any data".  The
>> page isn't entirely clear on this point but I think I need to do grub
>> root(hd0,0), setup(hd0,0)?  However, I'm unable to complete this step
>> since grub does not detect the virtual disks as BIOS devices, even
>> adding entries to device.map.  Any hints on how to get this working?
>This is a bug in pygrub, the solution is to delete line 538 in pygrub:
>log.debug("PyGrub: Default selection is not valid, using first boot 

I have made a copy of pygrub with that line removed, running directly
against the rootlv gives

/tmp/pygrub /dev/systemvg/domU_rootlv
Traceback (most recent call last):
  File "/tmp/pygrub", line 675, in <module>
    fs = fsimage.open(file, get_fs_offset(file))
IOError: [Errno 95] Operation not supported


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