I have this problem to and my setup is a bit different and i do not see a similar setup mentioned here.
My disc is GPT partitioned, UEFI is disabled and i boot/install in BIOS mode but Ubuntu (Lubuntu) is the only OS installed. That is because off a BCM4312 wireless chip which i need compile a module for, no binary available. Short off getting that compiled driver signed i must disable UEFI and use BIOS mode. Disc is partitioned; / , swap , /home , no bios-grub or EFI partition. Four attempts to install 18.04 all failed. Problem as noted above. Installed 16.04 no problem other than install media does boot as UEFI and the messages 16.04 installer gives are a bit succinct! but going back one stage does fix and install works good. During the 18.04 install attempts NO warning messages received. Best Wishes Chris -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1668148 Title: Booting installer in EFI mode with existing bios mode hd crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-efi/+bug/1668148/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
