the program cannot upload to S3

[mimoo]

I get this error when I try using s3cmd

mimoo@server:~$ s3cmd mb s3://my-database-backups
ERROR: Bucket 'my-database-backups' already exists
ERROR: S3 error: 409 (BucketAlreadyExists): The requested bucket name is not available. The bucket namespace is shared by all users of the system. Please select a different name and try again.

And the program gets me this error:

ERROR: S3 error: 400 (InvalidRequest): The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.
Old backup removed.
Moving the backup from past week to another folder...
ERROR: S3 error: 400 (InvalidRequest): The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.
Past backup moved.

[mimoo]

looks like this happen if I create the bucket manually on the aws panel. If I do it with s3cmd it works (and also the error I got was because I have to find a name that no other of their clients have chose

[excalq]

You might have two issues here. Keep in mind that bucket names must be globally unique.

[codex73]

@mimoo You need to create an unique bucket on S3. S3 buckets are unique just like domain names. Try something like this instead: s3cmd mb s3://mub-09876ddc-u