Leap 15.1 Installation from DVD

English Install/Boot/Login
1

I have several machines that I have updated to 15.1 with only minor issues
but I have a new system I am trying to install from DVD. Every install fails
with bizarre errors about Failed to download installer extension (insert /var/adm random path to random file)
This file was accidentally changed or a hacker blah blah. ISO MD5 SUM is good, SHA256 is good, Media check is good.
This is from the downloaded ISO from opensuse.org homepage.

I just stuffed my old OSLeap15 disk in it and called it a day.
I’ll update it once installed.

Lots of bizarre things going on with OpenSUSE lately. I hope it doesn’t
bode ill for the future. Stability is the reason I use OpenSUSE.

2

I have done several installs from the 15.1 DVD installer. I never ran into the problems you mention.

3

Is the DVD the full install or the Network install?

Maybe trying to network install and the Networks is not found???

4

What CPU, RAM, chipset, boot device type, network device(s), and graphics chip/card does it have? Does it have more than one GPU?