Created attachment 300939 [details, diff]
My fix for described problem
I ran into a problem using dosfslabel. The applying of the new label
is broken for not fresh formatted partitions.
In this case dosfslabel creates a second file in root directory with VOLUME attribute.
In addition, the file has other attributes.
Because of this, neither Windows nor Linux does not recognize this new
file and continue to use the old one.
I researched the problem and discovered that the dosfslabel code does
not took into consideration long file name case.
Bug reproduced always with any linux distro.
Has this been reported upstream? I don't see this in the new .14 release. :-/