I forgot to set the featurecompatibilityversion while upgrading Mongodb from 7 to 8. Now I can't use mongosh. How to solve this?

Mohammed_Khateeb_Kamran · 2025-03-18T08:59:52.882Z

While upgrading, I forgot to set the featurecompatibilityversion while upgrading Mongodb from 7 to 8. Now I can’t use mongosh. How to solve this? The installation is done in Ubuntu and the data is important so I need to save it. I tried using mongod --repair but it didn’t help.

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I forgot to set the featurecompatibilityversion while upgrading Mongodb from 7 to 8. Now I can’t use mongosh. How to solve this?

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