[Bug 236786] FreeBSD -.iso files not support written to USB drive

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236786

            Bug ID: 236786
           Summary: FreeBSD -.iso files not support written to USB drive
           Product: Base System
           Version: 12.0-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: standards
          Assignee: standards at FreeBSD.org
          Reporter: yklaxds at gmail.com

Created attachment 203137
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=203137&action=edit
Error output by DiskGenius

FreeBSD Official Handbook said that FreeBSD can be written to USB drive by
command "dd". 
But -.iso files can't boot in UEFI.
I just tested two files ：
FreeBSD-12.0-RELEASE-amd64-disc1.iso
FreeBSD-12.0-RELEASE-amd64-dvd1.iso
and I Used "Rufus" to write it to my USB drive.
But it cannot boot on my notebook.Only -.img files writing USB drive can boot.
I had checked files sha236 is ok.
And DiskGenius says that my USB deive ：
GPT primary database error
CRC REEOR GPT ERROR

WINDOWS 10 LTSC 2019
Rufus 3.3
xiaomi air 12.5 6Y30

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