<p>In the process of writing the question, I discovered the answer solving the problem:</p>
<pre><code>./bitcoind -reindex
</code></pre>

CC BY-SA 4.0
2023-01-03T03:22:49.853Z
2023-01-03T18:34:35.803Z
2023-01-03T18:34:35.803Z
BSH180_44
<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>

<bitcoin-core><bitcoind><reindex>
How to use -reindex
BSH180_44
# How to use -reindex

(Asked by: username_0 on 2023-01-03)

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.

**Tags:** bitcoin-core, bitcoind, reindex


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## 1 answers

### Answer by username_0 on 2023-01-03. Score: 1

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


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