Fails with KeyError: 'wal_buffers' using -V 9.1 against a 9.4.8 Pg (not supported I suppose)

[sammyjava]

[beans@intermine pgtune]$ psql --version
psql (PostgreSQL) 9.4.8

So that's what I'm running, but I tell pgtune that it's 9.1 since that's the latest settings file you've got in the repo:

[beans@intermine pgtune]$ ./pgtune -i postgresql.conf -o postgresql.conf.tuned -V 9.1 -c 100 -L
Traceback (most recent call last):
  File "./pgtune", line 698, in <module>
    sys.exit(main(sys.argv))
  File "./pgtune", line 687, in main
    wizard_tune(config, options, settings)
  File "./pgtune", line 593, in wizard_tune
    if settings.memory_unit(key):
  File "./pgtune", line 402, in memory_unit
    return (self.param_to_dict[setting])['memory_unit']
KeyError: 'wal_buffers'

[andreif]

It will be fixed via e.g. #18.

You can also try andreif@allthethings which contains #18 and even some other fixes.