Hi.
I started recently using Pd on Ubuntu and I have some struggles.
Now I'm using 0.49 Pd version.
After installing the external, i.e. mrpeach, I can open the help patch and use it.
But.. if I restart pd, creating a new file and try to create a packOSC object, pd can't create it. Then if I open the help file everything is ok and I can create the object in every new patch.

What's wrong? Never happend to me, neither on Debian or Windows or Mac.

The strange thing that's it's happening is that everything I save (externals and patches) are always locked. I'm not the owner of the file.
So I think that there is an error about permission and installing process

Thank you

Don't know about the locking of the patches you mention, but Pd being able to create objects only through their help patches seems like you haven't set the path to those objects to Pd's search path. When you open the help file, Pd can create the object most likely because help patch and object are in the same directory, which Pd will look up by default.
Try using [decalre -path /path/to/external] and then creating the object, or if you intend to do extensive use of that object, include it in Pd's search path through preferences.

Yeah that was the problem.

I solved with a simple "slash declaration".
This link has been useful too.

Anyway I re-installed everything, did a reset of path system directories and now the libraries folders aren't locked anymore.

Thank you!