---
name: "zpool-reguid"
section: "8"
platform: "linux"
package: "zfsutils-linux"
version: "2.3.9-0+deb13u1"
release: "Debian 13 (Trixie)"
platforms: ["linux", "freebsd"]
url: "https://new.carta.tech/zpool-reguid"
---

# zpool-reguid(8)

generate new unique identifier for ZFS storage pool

## NAME

**zpool-reguid** – generate new unique identifier for ZFS storage pool

## SYNOPSIS

**zpool** **reguid** \[**-g** *guid*\] *pool*

## DESCRIPTION

Generates a new unique identifier for the pool. You must ensure that all devices in this pool are online and healthy before performing this action.

- **-g** *guid*

  Set the pool GUID to the provided value. The GUID can be any 64-bit value accepted by [strtoull(3)](/strtoull/3.md) in base 10. **zpool-reguid** will return an error if the provided GUID is already in use.

## SEE ALSO

[zpool-export(8)](/zpool-export/8.md), [zpool-import(8)](/zpool-import/8.md)