Hi this should be the case.
So any compressed backup generated using pigz
should (and will be readable) using gzip, why?
Pigz is a parallel implementation of the gzip algorithm.
So as I need to cure some bit rot (and may-be incident ) I could volunteer to test it.
I will backup my VMs again on my nas (plenty of space) using pigz. Then I will restore using gz.
The transition script from 4.0 to 4.1 just dies utterly because the template VM were upgraded through many versions of fedora and debian respectively. Much stuff was installed and the dependency hell broke loose now.
Also having experienced nasty behaviour of some VMs in the context of using firefox that may have been exploited somehow (wired disk activity, unusable ps/2) best is to simply install the shit again.
It works on my machine, T7500 see hcl and now I just need to migrate the data and do a fresh install on the production disk:
“A man’s got to do what a man’s got to do.”
Cheers