Revert PR#11831 "Upgrade docker-sonic-mgmt base image from Ubuntu18.04 to 20.04" #12035
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Why I did it
Issue is raised: #11950
How I did it
Revert PR: #11831
How to verify it
Docker image can be built
Which release branch to backport (provide reason below if selected)
Description for the changelog
N/A
Link to config_db schema for YANG module changes
N/A
A picture of a cute animal (not mandatory but encouraged)