[Bug 216916] Corrupt GPT image in USB memstick ver FreBSD 11.0

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216916

            Bug ID: 216916
           Summary: Corrupt GPT image in USB memstick ver FreBSD 11.0
           Product: Documentation
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: Documentation
          Assignee: freebsd-doc at FreeBSD.org
          Reporter: for-freebsd-11 at jozef.drahovsky.sk

I suggest adding next text to pages handbook

https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/bsdinstall-pre.html
2.3.1.1. Writing an Image File to USB
Procedure 2.1. Using dd to Write the Image

# dd if=FreeBSD-11.0-RELEASE-amd64-memstick.img of=/dev/da0 bs=1M conv=sync
# gpart show da0
=>      3  1433741  da0  GPT  (7.3G) [CORRUPT]
        3     1600    1  efi  (800K)
     1603      125    2  freebsd-boot  (63K)
     1728  1429968    3  freebsd-ufs  (698M)
  1431696     2048    4  freebsd-swap  (1.0M)
# gpart recover da0
# gpart show da0
=>       3  15335413  da0  GPT  (7.3G)
         3      1600    1  efi  (800K)
      1603       125    2  freebsd-boot  (63K)
      1728   1429968    3  freebsd-ufs  (698M)
   1431696      2048    4  freebsd-swap  (1.0M)
   1433744  13901672       - free -  (6.6G)

Notes: GPT partition in USB is default corrupted because every USB is
differently size. GPT partition is at begin and at end. Command gpart recover
da0 writes identical information from begin at the end. Some HW refuse booting
with corrupt GPT.

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