Install Fedora CoreOS in a repartitioned hard disk alongside another Linux OS


I have a hard disk with three primary partitions, in the first one (/dev/sda1) I installed an Ubuntu 20 OS, and I’m trying to install a Fedora CoreOS image in the second partition (/dev/sda2). However, the coreos-installer is failing with the following console output:


How can the FCOS be installed alongside another Linux OS in a partition of the same hard disk? Or does the FCOS necessarily require the whole hard disk to get installed successfully?

Thanks in advance!

It effectively requires a whole device. It’s an image based approach (think dd) and writes a new partition table, etc…

You don’t want to hand the installer a device/disk that you have other operating systems on.

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