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The UEFI log provides information about the start and end of UEFI. The table lists the log entries that can help you verify the start and end of UEFI.

Table: Checking UEFI log

The numbers in the log entry column of the table show the timestamp in milliseconds.
The following example log uses the debug build flavor. To use the build flavor, replace the ‘RELEASE’ string with ‘DEBUG’ in the boot build command. For more information, see Build BOOT.
UEFI logs