<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](https://github.com/bitcoin/bitcoin/issues/26778). 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](https://bitcoin.stackexchange.com/questions/60709/when-should-i-use-reindex-chainstate-and-when-reindex). However, there is no documentation or instruction explaining what `-reindex` is or how to use it.

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


---

## 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

```


---

