Roger Pau Monné authored Oct 06, 2023 and Andrew Cooper committed Oct 06, 2023

The script heavily relies on the urlgrabber python module, which doesn't seem
to be packaged by all distros; it's missing from newer Debian versions at
least.

Also the usage of the commands module has been deprecated since Python 2.6, and
removed in Python 3, so the code would need to be re-written to not rely on
urlgrabber and the commands modules.

Arguably the purpose of the xenpvnetboot bootloader can also be achieved with
an isolated script that fetches the kernel and ramdisk before attempting to
launch the domain, without having to run in libxl context.  There are no xl.cfg
options consumed by the bootloader apart from the base location and the
subpaths of the kernel and ramdisk to fetch.

Any interested parties in keeping such functionality are free to submit an
updated script that works with Python 3.

Resolves: xen-project/xen#172
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Release-acked-by: Henry Wang <Henry.Wang@arm.com>