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Update upgrade.md

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Add upgrade path using yaml
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Sheng Yang 2018-09-24 14:39:58 -07:00 committed by GitHub
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Here we cover how to upgrade to Longhorn v0.3.1 from all previous releases.
## Upgrading from v0.3.x
## From v0.3.x
### From Longhorn deployment yaml
If you didn't change any configuration during Longhorn v0.3.0 installation, follow [the official Longhorn Deployment instructions](../README.md#deployment) to upgrade.
Otherwise you will need to download the yaml file from [the official Longhorn Deployment instructions](../README.md#deployment), modify it to your need (e.g. choosing different storage driver), then use `kubectl apply -f` to upgrade.
### From Longhorn App (Rancher Catalog App)
On Rancher UI, navigate to the `Catalog Apps` screen and click the
`Upgrade available` button. Do not change any of the settings. *Do not change
any of the settings right now.* Click `Upgrade`.
@ -13,7 +20,7 @@ bottom left corner of the screen changes. Wait until websocket indicators in
bottom right corner of the screen turn solid green. Navigate to
`Setting> Engine Image` and wait until the new Engine Image is `Ready`.
## Upgrading from v0.2 and older
## From v0.2 and older
The upgrade procedure for Longhorn v0.2 and v0.1 deployments is more involved.