Can't boot PVE 8.2 ISO (solved)

[luison]

We are trying to migrate a running server from LVM disks to ZFS.
In order to avoid booting issues and assuming there is no easy migration process we considered installing a clean PVE 8.2 on a new disk, in order to later try to migrate the root configuration, recreate a thin partition over ZFS, migrate the containers from the LVM thin partition to the ZFS one and then add the additional LVM volumes to the original (new) ZFS pool.

In any case, in order to do that we've prepared an 8.2 ISO but just can't seem to boot correctly from it whatsoever.
Initially we used Ventoy and read there might be some issues, so we did a clean ISO setup on USB with Rufus as doc suggests.

The "graphical" install option (debug or normal) gets stuck at:

Initramfs unpacking failed: ZSTD-compressed data is corrupt

The "terminal" install option (debug or normal) starts booting and at a certain point gets stuck at:

/dev/root: "Can't open root device "" or unknown-block(1,0) error -6

And then a kernel panic!

Not sure if this is related to the fact that there is a system already installed but I was assuming that is not the case for an ISO installer. Tried a few BIOS options for legacy boots etc but nothing.

Rescue console from the ISO works fine but performs a complete boot of our system, this is not just a rescue console but a running system.

 

[luison]

UPDATE / SOLVED

Can't tell which of both, but the issue solved after redownloading the ISO image and using Etcher to create the USB drive (instead of Rufus) in Windows, since I read some different behaviours depending on the tool used to create the USB. Mysteries of technology! Hope it helps someone else.