Just checked inside a VM - the check that Cirros performs is indeed case sensitive.
$ blkid -tLABEL=CONFIG-2 -odevice /dev/vdb $ blkid -tLABEL=config-2 -odevice $
http://bazaar.launchpad.net/~cirros-dev/cirros/trunk/view/head:/src/lib/cirros/shlib#L134
Just checked inside a VM - the check that Cirros performs is indeed case sensitive.
$ blkid -tLABEL=CONFIG-2 -odevice
/dev/vdb
$ blkid -tLABEL=config-2 -odevice
$
http:// bazaar. launchpad. net/~cirros- dev/cirros/ trunk/view/ head:/src/ lib/cirros/ shlib#L134