k3os os-config

linuxkit-525400929b77 [~]$ df | grep vda
linuxkit-525400929b77 [~]$ sudo fdisk /dev/vda

Welcome to fdisk (util-linux 2.33).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


Command (m for help): d
Selected partition 1
Partition 1 has been deleted.

Command (m for help): w
The partition table has been altered.
Syncing disks.

linuxkit-525400929b77 [~]$ sudo fdisk -l /dev/vda
Disk /dev/vda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x38b4a731
linuxkit-525400929b77 [~]$ sudo os-config 

Running k3OS configuration
Choose operation
1. Install to disk
2. Configure server or agent
Select Number [1]: 1
Config system with cloud-init file? [y/N]: 
Authorize GitHub users to SSH? [y/N]: 
Please enter password for [rancher]: *******
Confirm password for [rancher]: *******
Configure WiFi? [y/N]: 
Run as server or agent?
1. server
2. agent
Select Number [1]: 1
Token or cluster secret (optional): 

Configuration
-------------

device: /dev/vda

Your disk will be formatted and k3OS will be installed with the above configuration.
Continue? [y/N]: y
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.000954727 s, 1.1 GB/s
mke2fs 1.44.5 (15-Dec-2018)
/dev/vda1 is apparently in use by the system; will not make a filesystem here!
exit status 1