The good news first: F-18 Beta DVD ISO image can be booted from
harddisk
again, so it seems I will be able to test that installation method this
time without having to research strange/new/complex entries for GRUB and
loading squashfs images from remote locations.
I may have been too optimistic. :-(
The following issue I've revisited:
The installer complains about the "installation source"
(ISO) without
telling me what's wrong. There's a "Verify" button, which doesn't
seem to
do anything.
There's a tiny empty area/button left of the Verify button. It's another
button with no text assigned. One can click it to open a file dialog,
point it at the DVD ISO image, the button then displays the path, one
can even Verify the ISO image, but the installer crashes. And it's been
reported before:
https://bugzilla.redhat.com/879612
I guess it will not be possible to install from DVD ISO image on harddisk
due to this issue in addition to the other problem I've described.