Author: Roman Podoliaka
Revision Date: 2016-07-04 11:22:51 UTC

config drive: also check uppercase VFAT labels

Some dosfstools versions unconditionally produce uppercase FS label,
which are currently ignored by Cirros init system (but work with
cloud-init), thus, such config drives will not be found on VM boot.

while the config drive spec says that a lowercase label "config-2"
should be used, it does not go into details whether case-sensitive
or case-insesitive string comparison is expected.

We could easily make this work for CentOS / RHEL users, if we simply
checked for both "config-2" and "CONFIG-2" before giving up.

Closes-Bug: #1598783