Apple Exam Apple-Device-Support Topic 12 Question 22 Discussion

The installer log is a useful tool to troubleshoot macOS installation issues. The installer log records the progress and status of the installation process, as well as any errors or warnings that may occur.You can view the installer log during or after the installation by following these steps1:

To view the installer log during the installation, press Command-L on your keyboard. A new window will open showing the log messages. You can press Command-3 to show all messages, or Command-4 to show errors and progress messages only.

To view the installer log after the installation, open the Console app from the Applications > Utilities folder. In the sidebar, select your Mac under Devices, then choose /var/log > install.log from the list of log files. You can use the search field or the filter bar to find relevant messages.

The installer log can help you identify the cause of the installation issue, such as a corrupted installer file, insufficient disk space, incompatible software, or network problems. You can use the information in the installer log to troubleshoot the issue or contact Apple Support for further assistance.Reference:How to use the macOS installer log to troubleshoot installation problems - Macworld