macOS Big Surインストール 容量不足
MacBook Air 13 inch early 2015
Catalina10.15.7
Machintosh HD 121.12 GB total 13.42 GB available
There is not enough free space on the selected volume to upgrade the OS. An additional 13.1 GB is required.1
と出ます
MacBook Air 13″, macOS 10.15
