git: gpt(8): Read secondary GPT from position stored in the primary header

[Aaron LI]

commit 9f19c3e4215f952d8d7d8529e99af3292794f75d
Author: Aaron LI <aly at aaronly.me>
Date:   Thu Jan 22 23:17:52 2026 +0800

    gpt(8): Read secondary GPT from position stored in the primary header
    
    When the primary GPT is found, read the secondary GPT from the position
    stored in the primary header, rather than assuming the end of the disk.
    
    Meanwhile, add error messages for gpt_read() failures.
    
    Obtained-from: NetBSD

Summary of changes:
 sbin/gpt/gpt.c | 49 +++++++++++++++++++++++++++++++++++++------------
 1 file changed, 37 insertions(+), 12 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/9f19c3e4215f952d8d7d8529e99af3292794f75d


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