Caveats when switching Xen domUs to pygrub

When switching some old Xen guests (domUs) to pygrub, some things to remember:

  • using the bootloader config setting, you must remove the config settings kernel, extra, ramdisk and root, otherwise the domU will not boot.
  • if you happen to use multiple disk devices, make sure the one with the kernel/initrd is listed first, otherwise you'll get the error

    Error: Boot loader didn't return any data
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