Why is my HD divided into two containers? One saying container disk 2 and the other is container disk 1. The container disk 1 has about 26 GB free but not used just setting there. I need to use it.
MacBook Air 13″
That is a normal condition of a Mac drive formatted with the new Apple File System (APFS) that is optimized for solid-state drives:
Role of Apple File System - Apple Support
and
About the read-only system volume in macOS Catalina or later - Apple Support
Hard drive divided into two containers
