# Can't update cells home from v2 to v3

**URL:** <https://forum.pydio.com/t/cant-update-cells-home-from-v2-to-v3/4167>\
**Category:** Pydio Cells\
**Created:** [November 23, 2021, 9:25am UTC](https://forum.pydio.com/t/cant-update-cells-home-from-v2-to-v3/4167 "2021-11-23T09:25:27Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Sergey\_Cherepanov](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.pydio.com/sergey_cherepanov/32/1594_2.png) [@Sergey\_Cherepanov](https://forum.pydio.com/u/Sergey_Cherepanov)\
**Post date:** [November 23, 2021, 9:25am UTC](https://forum.pydio.com/t/cant-update-cells-home-from-v2-to-v3/4167/1 "2021-11-23T09:25:27Z")

</div>

When I replaced the binary it doesn’t want to run.

```auto
panic: assignment to entry in nil map
goroutine 1 [running]:
github.com/pydio/cells/common/config/migrations.updateVersionsStore(0x75f2680, 0xc000ba2ae0, 0xc000b7d700, 0xc000b82e76)
        github.com/pydio/cells/common/config/migrations/2.2.99.go:63 +0x46f
github.com/pydio/cells/common/config/migrations.getMigration.func1.1(0x75be620, 0xc00011c000, 0xffffffffffffffff, 0xc0000b3900)
        github.com/pydio/cells/common/config/migrations/migrations.go:52 +0x3a
github.com/pydio/cells/common/utils/migrations.Apply(0x75be620, 0xc00011c000, 0xc0000b3880, 0xc0000b33c0, 0xc000af0b00, 0x9, 0x10
        github.com/pydio/cells/common/utils/migrations/migrations.go:56 +0xd9
github.com/pydio/cells/common/config/migrations.UpgradeConfigsIfRequired(0x75f2680, 0xc000ba2ae0, 0xc0000b33c0, 0x0, 0x0, 0xc000b
        github.com/pydio/cells/common/config/migrations/migrations.go:80 +0x355
github.com/pydio/cells/cmd.initConfig(0xc000638c60)
        github.com/pydio/cells/cmd/root.go:317 +0x8a5
github.com/pydio/cells/cmd.glob..func81(0x8d01aa0, 0x92f3480, 0x0, 0x0, 0x0, 0x0)
        github.com/pydio/cells/cmd/start.go:150 +0x8ce
github.com/pydio/cells/vendor/github.com/spf13/cobra.(*Command).execute(0x8d01aa0, 0x92f3480, 0x0, 0x0, 0x8d01aa0, 0x92f3480)
        github.com/pydio/cells/vendor/github.com/spf13/cobra/command.go:839 +0x530
github.com/pydio/cells/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0x8d01d40, 0xc00011c000, 0x75be5e0, 0xc000730580)
        github.com/pydio/cells/vendor/github.com/spf13/cobra/command.go:958 +0x375
github.com/pydio/cells/vendor/github.com/spf13/cobra.(*Command).Execute(...)
        github.com/pydio/cells/vendor/github.com/spf13/cobra/command.go:895
github.com/pydio/cells/vendor/github.com/spf13/cobra.(*Command).ExecuteContext(...)
        github.com/pydio/cells/vendor/github.com/spf13/cobra/command.go:888
github.com/pydio/cells/cmd.Execute()
        github.com/pydio/cells/cmd/root.go:432 +0xc8
main.main()
        github.com/pydio/cells/main.go:116 +0x68

```

Where I can find the upgrade guide?

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<div class="post-metadata">

**Author:** ![bsinou](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.pydio.com/bsinou/32/476_2.png) [@bsinou](https://forum.pydio.com/u/bsinou)\
**Post date:** [November 23, 2021, 10:50am UTC](https://forum.pydio.com/t/cant-update-cells-home-from-v2-to-v3/4167/2 "2021-11-23T10:50:16Z")

</div>

Hi @Sergey_Cherepanov and thanks for posting in the forum 😉

Your error is indeed strange, can you please give some further details about the history of your instance in terms of versions?  
From which version did you try to update?

> [@Sergey\_Cherepanov](#):
>
> Where I can find the upgrade guide?

From 2 to 3 there is no specific upgrade guide because normally everything should be managed by the new binary after upgrade and restart without any action from the user…

But we might have missed something.

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<div class="post-metadata">

**Author:** ![charles](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.pydio.com/charles/32/3_2.png) [@charles](https://forum.pydio.com/u/charles)\
**Post date:** [November 26, 2021, 6:36am UTC](https://forum.pydio.com/t/cant-update-cells-home-from-v2-to-v3/4167/3 "2021-11-26T06:36:26Z")

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> [@Sergey\_Cherepanov](#):
>
> `github.com/pydio/cells/common/config/migrations/2.2.99.go`

Hum, indeed could be a bug due to a specific datasource configuration. Could you post your pydio.json, or at least describe if you made some changes to the default datasources setup ?

(basically, code is looking for a “default” datasource, which is generally “pydiods1”, and this datasource configuration must have a “StorageConfiguration” key)

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<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex032/uploads/pydio/original/2X/6/61f19fa52ec15fd4250db51aea351adba0e831fd.png) [@system](https://forum.pydio.com/u/system)\
**Post date:** [January 25, 2022, 6:36am UTC](https://forum.pydio.com/t/cant-update-cells-home-from-v2-to-v3/4167/4 "2022-01-25T06:36:48Z")

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