Comment 15 for bug 1838525

Hrm, no much output of long debugging :-/
Failing to see where/why/how the difference dconf choices are populated differently for sata-vs-virtio I started to compare things with disco ...

As expected it works there and grub-installer is called with /dev/vda as argument.

Next I went into comparing the d-i components between disco and eoan but other than the name change in bug 1782507 nothing seemed too related. And this change came after this bug here reported (per paride since June 18, 2019)

Next I analyzed grub-probe behavior in the three environments eoan-sata, eoan-virtio and disco-virtio.
But this part always behaves the same reporting the volume group.

So it really seems to come down finding why d-i populated the values differently as Rafael already assumed.

P.S. along the debugging I wondered for further work about d-i coming in components. Is there a good way/scripts that one could use exchange those e.g. the older/newer partman-lvm and then rebuild the ISO?