Connect Koha with VuFind

Install VuFind

See the following documentation 

Indexing Koha with VuFind

Copy your marc_local.properties

sudo cp /usr/local/vufind/import/marc_local.properties /usr/local/vufind/local/import/

Open marc_local.properties in a terminal,

sudo leafpad /usr/local/vufind/local/import/marc_local.properties

Add following line in the file,

id = 999c, first

See the result,

Open following file,

sudo leafpad /usr/local/vufind/local/config/vufind/config.ini

Make sure that following lines in the file, [Line number 162 and 163]

[Catalog]
driver = "Koha"

If the lines not there, copy paste the above lines.

Open following file.

sudo leafpad /usr/local/vufind/local/config/vufind/Koha.ini

Change Koha connection details.
Following is an example from Koha installed in the same machine vufind installed.

Export MARC record

Tool > Export Data

Import into VuFind

cd /usr/local/vufind
./import-marc.sh markfile.mrc

Restart Solr:

cd /usr/local/vufind/
./solr.sh restart

Reference
https://vufind.org/wiki/indexing:koha