Frequently Asked Questions


Q: MS Amanda does not work on Unix. What could be the problem ?

A: To run MSAmanda one needs to install the Mono frameweork. Visit for proper installation instructions.


Q: Found mismatch between json parameter ….

Found mismatch between json parameter csv_filter_rules:
[['PEP', 'lte', 0.01], ['Is decoy', 'equals', 'false']] and
controller params csv_filter_rules:
[('PEP', 'lte', 0.01), ('Is decoy', 'equals', 'false')].
Consider re-run with force=True or delete old u.jsons.

During JSON dump Python tuples are converted into list like objects, thus this might be a reason. Just change your parameter to lists instead of tuples :)

Q: How do I add an engine that is not installed via

Download the engine from the respective developers homepage (links are given in the engine wrapper documentation). Create a folder in the corresponding Ursgal resoucres (name of the folder = name of the engine in Ursgal, for more information see Create/Implement your own UNode: 1. Integration into Resources) and unpack/save all required files, especially the executable, there. Remember to run:

user@localhost:~/ursgal$ python3.4 install

to include Ursgal (and the changes you have made to the resources) into Python site-packages.


Q: How do I create/add a new engine ?

See Create/Implement your own UNode.

Q: How do I keep Ursgal up-to-date?

Ursgal is still in development and changes, extensions, etc. are pushed to GitHub. Therefore, the easiest way (if you have cloned Ursgal from GitHub) is:

user@localhost:~/ursgal$ git pull

If you have not cloned Ursgal but used the ZIP file you can replace the folder with the newly downloaded and extracted version.

In both cases you might need to run the setup again to update the python site-packages:

user@localhost:~/ursgal$ python3.4 install