Please is it possible to download the whole dataset for a particular country?

want to download the full data for Ghana. Dont want to select particular variables.

No. Under the terms of the IPUMS Memorandum of Understanding only the National Statistical Office owner may disseminate the whole, original sample. With IPUMS you download the specific samples and variables that you need for a project and later, when your needs change, you come back for more.

The NSOs like the value that IPUMS adds in integrating the metadata and managing the dissemination of the microdata.