Re: Proposal to enhance boot path selections

[Paul Goyette <paul%whooppee.com@localhost>]

On Fri, 16 May 2025, Christoph Badura wrote:

> On Sun, May 11, 2025 at 07:34:29AM -0700, Paul Goyette wrote:
> > On Sun, 11 May 2025, Greg Troxel wrote:
> > > Paul Goyette <paul%whooppee.com@localhost> writes:
> > >
> > > > > Yup, I think you're missing the fact that all of this relates to the
> > > > > ratther new-ish KERNEL_DIR option, support for which was only recently
> > > > > completed (by myself).  KERNEL_DIR is described briefly in options(4),
> > > > > and it is noted in both CHANGES and UPDATING.
> > > >
> > > > Correction, KERNEL_DIR is described in mk.conf(5).  It is a build.sh
> > > > option.
> > >
> > > Is how one interacts with it described in boot(8)?  It seems like it
> > > should be.  (The build where I went to read that man page is from May
> > > 5.)
> >
> > I am updating x86/boot(8) now.
>
> x86/boot(8) now states:
>
>  If the specified
>  .Pa filename
>  does not contain an embedded slash character, the boot loader will also
>  try
>  .Pa filename/kernel
>  and
>  .Pa filename/kernel.gz .
>
> Is the emphasis on an *embedded* slash to be taken literally?  I.e. are
> leading and trailing slashes considered embedded or not?  In the former
> case, why specifically mention embedded and not just say "contains a slash
> character?"
>
> The code just checks if filename *contains* a slash.  I'm wondering what is
> actually intended here.

A leading slaash is ignored.  Any other slash (traiing or embedded)
will prevent looking for filename/kernel and filename/kernel.gz


+---------------------+--------------------------+----------------------+
| Paul Goyette (.sig) | PGP Key fingerprint:     | E-mail addresses:    |
| (Retired)           | 1B11 1849 721C 56C8 F63A | paul%whooppee.com@localhost    |
| Software Developer  | 6E2E 05FD 15CE 9F2D 5102 | pgoyette%netbsd.org@localhost  |
| & Network Engineer  |                          | pgoyette99%gmail.com@localhost |
+---------------------+--------------------------+----------------------+