问题
I downloaded a qcow2 image from Atomic official site, but I really frustrated with the steps to start this qcow2 image, and no helpful clear tips from Google.
Anyone can give me some clear hints on how to start the qcow2 vm? Thanks.
The image name is: Fedora-Atomic-25-20170131.0.x86_64.qcow2
回答1:
The Fedora Atomic Host (FAH) qcow is a cloud image, so it expects a Metadata source. Metadata is all the configuration bits a generic cloud image uses to get configured. Specifically, it requires something that the cloud-init package recognizes. You can read more about cloud-init here. If you just want to fire off some one-off VMs for testing, a tool you can use is testcloud.
Using testcloud to launch the VM, you'll be able to log in with the user 'fedora' (which is the default in Fedora based cloud images) and the password 'passw0rd' (you can change this default in the config).
The other option is to download the installer ISO, and then you can install into a fresh VM and not have to worry about metadata at all. You can find that here, under "Other Downloads" on the right hand side.
The #fedora-cloud channel on Freenode is a good place to check if you have any other questions.
来源：https://stackoverflow.com/questions/42267539/how-to-start-fedora-atomic-vm