[Bug 247074] boot2 is unable to load kernel directly

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sun Jun 7 23:30:35 UTC 2020


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=247074

            Bug ID: 247074
           Summary: boot2 is unable to load kernel directly
           Product: Documentation
           Version: Latest
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Manual Pages
          Assignee: bugs at FreeBSD.org
          Reporter: aceqbaceq at gmail.com
                CC: doc at FreeBSD.org

12.0-release r341666 generic amd64

According to man (8) boot:

However, it is possible to dispense with the third      stage altogether, ei-
     ther by specifying a kernel name in the boot block parameter file,
     /boot.config, or, unless option -n is set, by hitting a key during a
     brief pause (while one of the characters -, \, |, or / is displayed) be-
     fore loader(8) is invoked.  Booting will also be attempted at stage two,
     if the third stage cannot be loaded.


I tried to boot freebsd without using loader ( via boot2  by specifying a
kernel file name)   . As a result the system just say : BTX halted.

--
0:ad(0,a)/boot/kernel/kernel

...
BTX halted
--

I propose to edit man 8 boot and remove misleading information.
Obviously boot2 can not boot kernel directly.

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