<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Dear all, first of all a happy new year to everyone. I am trying to use the augeas C API to apply changes to the "/etc/network/interfaces" file. So far I was able to apply changes to the tree. However, I am not able to save the changes back to the file. First, I thought it is a problem with the permissions. However, I copied the interfaces file to a different folder and it still does not work. Using the command line tool augtool, I am able to make the changes and save them to the file. I uploaded an (almost) minimal version of my program to: <a href="https://github.com/cmolitor/AugeasDemoC">https://github.com/cmolitor/AugeasDemoC</a> The repository includes an example „interfaces“. I am working on a Raspberry Pi with Raspbian Jessie. It would be great if someone could give me a hint what I am doing work and where the problem might come from. Thanks for your support! Christoph</body></html>