Comment 1 for bug 1548772

Scott Moser (smoser) wrote :

There is code in cloud-init to pass the '--force' flag on mkfs.ext4.
It will do that if it thinks it is calling mkfs on a 'disk' (rather than 'part') as would be output by:
  lsblk --pairs --output 'NAME,TYPE,FSTYPE,LABEL' /dev/sda

Can you tell me what version of OS (and version) you're running this on ? And what cloud-init?