chksum files for images do not reflect actual filenames
since #178 the imagenames of the firmware-files get changed. But the contens of md5sums and sha256sums still have the old / original filenames inside.
see also
- https://lists.berlin.freifunk.net/pipermail/berlin/2017-May/035708.html
- https://lists.berlin.freifunk.net/pipermail/berlin/2018-June/037985.html
@Akira25 reported (https://github.com/freifunk-berlin/buildbot/issues/61) that with Lede-17.01 based firmwares the chksum file is broken even more (it just contains a single file).
I just had a look in the firmware-directory of a recent build (master branch based on OpenWrt-19.07) where this problem seems to have been fixed.
probably that's a reason, why gluon is using it's own script for calculation the chksums (https://github.com/freifunk-gluon/gluon/blob/master/scripts/sha256sum.sh)