current ubuntu kernel compression method is breaking VMs using pygrub (Xen)
christian.ehrhardt at canonical.com
Wed Jan 26 15:15:51 UTC 2022
On Wed, Jan 26, 2022 at 3:47 PM Oliver Linden <oliver_linden at helimail.de> wrote:
> With at least the two most recent kernel versions
> ubuntu switched to ZSTD as default kernel compression method breaking all Xen installations using "pygrub", regardless whether it's a Dom0 or a DomU.
> Please switch back to a "pygrub" supported kernel compression method.
I'm not going into the pygrub side of things here, but I wanted to let
you know that there is  which I think reported this issue for xen.
There is work ongoing that tries to get a newer xen into jammy that
can work with that.
There might be SRUs later that fix this in older releases, but given
that xen is "only" in universe I do not want to commit/promise that.
> Best, Oliver
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