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First a disclaimer, this is being done on a KVM/Qemu vm before I attempt with a live system. Same setup worked fine with Fedora. When trying to install Ubuntu 18.04 I get the a fatal error. Start off by manually setting up partitions since the installer does not give the option to set up raid.

ls /dev/vd* /dev/vda1 /dev/vdb1

mdadm --create /dev/md0 --level=0 --raid-devices=2 /dev/vda1 /dev/vdb1

Then I start the installer. When it gets to the point of installing grub it give me a fatal error cannot install grub on /dev/vda

I got the same error when using the mini.iso netboot installer for Ubuntu 18.04

-Bryan

1 Answers1

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After fiddling around with it all night I discovered the problem. Ubuntu doesn't agree with the virtio driver. After switching the Qemu driver to SATA it worked fine :)