Replace reference to md5 with reference to sha256
MODIFY
repo2docker/buildpacks/conda/install-miniforge.bash
repo2docker/buildpacks/conda/install-miniforge.bash
@@ -20,7 +20,7 @@ chmod +x ${INSTALLER_PATH}
# check sha256 checksum
if ! echo "${SHA256SUM} ${INSTALLER_PATH}" | sha256sum --quiet -c -; then
- echo "md5sum mismatch for ${INSTALLER_PATH}, exiting!"
+ echo "sha256 mismatch for ${INSTALLER_PATH}, exiting!"
exit 1
fi

Replace reference to md5 with reference to sha256