yes, for reference:

```
Usage: ./coreos-install [-V version] [-d /dev/device]
Options:
    -d DEVICE   Install CoreOS to the given device.
    -V VERSION  Version to install (e.g. alpha) [default: alpha]
    -o OEM      OEM type to install (e.g. ami) [default: (none)]
    -c CLOUD    Insert a cloud-init config to be executed on boot.
    -t TMPDIR   Temporary location with enough space to download images.
    -v          Super verbose, for debugging.
    -h          This ;-)

This tool installs CoreOS on a block device. If you PXE booted CoreOS on a
machine then use this tool to make a permanent install.
```