user139053: I am working on creating a Pathing Guide for macOS Installation. The
IN:
./bitcoind

OUT:
2023-01-02T01:26:12Z : You need to rebuild the database using -reindex to go back to unpruned mode.  This will redownload the entire blockchain.
Please restart with -reindex or -reindex-chainstate to recover.

A good overview of when to use -reindex is provided on StackExchange. However, there is no documentation or instruction explaining what -reindex is or how to use it.

user139053: In the process of writing the question, I discovered the answer solving the problem:
./bitcoind -reindex


139053: <p>I am working on creating a <a href="https://github.com/bitcoin/bitcoin/issues/26778" rel="nofollow noreferrer">Pathing Guide for macOS Installation</a>. The</p>
<p>IN:</p>
<pre><code>./bitcoind
</code></pre>
<p>OUT:</p>
<pre><code>2023-01-02T01:26:12Z : You need to rebuild the database using -reindex to go back to unpruned mode.  This will redownload the entire blockchain.
Please restart with -reindex or -reindex-chainstate to recover.
</code></pre>
<p>A good overview of when to use <code>-reindex</code> is provided on <a href="https://bitcoin.stackexchange.com/questions/60709/when-should-i-use-reindex-chainstate-and-when-reindex">StackExchange</a>. However, there is no documentation or instruction explaining what <code>-reindex</code> is or how to use it.</p>
 139053: <p>In the process of writing the question, I discovered the answer solving the problem:</p>
<pre><code>./bitcoind -reindex
</code></pre>
