# I have old data files from a v1 InfluxDB, how do I convert them in something ingest-able by a v2 instance?

**URL:** <https://community.influxdata.com/t/i-have-old-data-files-from-a-v1-influxdb-how-do-i-convert-them-in-something-ingest-able-by-a-v2-instance/39680>\
**Category:** InfluxDB 2\
**Tags:** influxdb\
**Created:** [December 4, 2024, 5:55pm UTC](https://community.influxdata.com/t/i-have-old-data-files-from-a-v1-influxdb-how-do-i-convert-them-in-something-ingest-able-by-a-v2-instance/39680 "2024-12-04T17:55:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![bfontaine](https://sea1.discourse-cdn.com/flex023/user_avatar/community.influxdata.com/bfontaine/32/16953_2.png) [@bfontaine](https://community.influxdata.com/u/bfontaine)\
**Post date:** [December 4, 2024, 5:55pm UTC](https://community.influxdata.com/t/i-have-old-data-files-from-a-v1-influxdb-how-do-i-convert-them-in-something-ingest-able-by-a-v2-instance/39680/1 "2024-12-04T17:55:35Z")

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Weird issue here: last month I tried to upgrade my v2 InfluxDB instance, but for some reason I failed and went back to v1.11, so it started to write data in a different location and I “lost” the V2 data. Now I fixed the upgrade and I’m back to v2.8.11, it reads/writes the data in the previous location, but I have one month of data in V1 format that I need to convert in something I can import in the V2 instance.  
This is not a backup, these are raw files used by InfluxDB with directories such as `wall`, `data`, `meta`.

Is there some way to load this data in a V1 Influx on some server, then make a backup that can be loaded in the V2 instance?

Thanks.

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**Author:** ![Anaisdg](https://sea1.discourse-cdn.com/flex023/user_avatar/community.influxdata.com/anaisdg/32/6401_2.png) [@Anaisdg](https://community.influxdata.com/u/Anaisdg)\
**Post date:** [December 6, 2024, 9:08pm UTC](https://community.influxdata.com/t/i-have-old-data-files-from-a-v1-influxdb-how-do-i-convert-them-in-something-ingest-able-by-a-v2-instance/39680/2 "2024-12-06T21:08:17Z")

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Hello @bfontaine,  
Welcome!  
Here are the upgrade and migrate guides for 1.x-\>2.x

> **[Upgrade from InfluxDB 1.x to 2.7 | InfluxDB OSS v2 Documentation](https://docs.influxdata.com/influxdb/v2/install/upgrade/v1-to-v2/)**
>
> Explore different methods for upgrading from InfluxDB 1.x to InfluxDB 2.7 and choose the best one for your use case.

Specifically look at

> **[Manually upgrade from InfluxDB 1.x to 2.7 | InfluxDB OSS v2 Documentation](https://docs.influxdata.com/influxdb/v2/install/upgrade/v1-to-v2/manual-upgrade/#migrate-time-series-data)**
>
> To manually upgrade from InfluxDB 1.x to InfluxDB 2.7, migrate data, create 1.x-compatible authorizations, and create database and retention policy (DBRP) mappings.

Let me know if that helps 🙂