[//]: # (werk v2)
# omd update: Don't Delete "config.pb" During Pre-Update
key | value
---------- | ---
date | 2024-03-07T13:27:55+00:00
version | 2.3.0b2
class | fix
edition | cee
component | omd
level | 1
compatible | yes
The `omd update` command has the capability to undo the changes it has done up until
`Verifying
Checkmk configuration...`. However, if any change after `Verifying Checkmk
configuration...` is
persisted. Due to a regression caused by Werk #15725, the file `config.pb` is deleted
during this
verification. If the update aborts during the verification, then users will see the
following error:
```
Starting cmc...Failed (Config /omd/sites/prod_dmz/var/check_mk/core/config.pb missing, run
"cmk -U" and try again)
```
With this Werk, `config.pb` will be deleting only while `Updating Checkmk
configuration...`.
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