Re: How to load ffs module via boot.cfg?

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

On Mon, 1 Jun 2020, Paul Goyette wrote:

> On Mon, 1 Jun 2020, Jukka Ruohonen wrote:
>
> > On Mon, Jun 01, 2020 at 01:36:01PM +0300, Jukka Ruohonen wrote:
> > > I'd like to run amd64/MODULAR, but I have forgotten how to load modules 
> > > via
> > > the boot loader. In particular, I need FFS in order to boot.
> >
> > To reply to myself: it works if I uncomment "-no file-system FFS". I do not
> > know whether I actually have ever had FFS as a module.
>
> It's really easy.  Just fix your syntax:
>
> 	load=ffs
>
> Also, you'll need to include a couple of dependency/required modules:
>
> 	load=ufs
> 	load=wapbl
>
> And finally, there are a couple of options which are not yet modular.
> You may need to remove some options from the modules' Makefile and
> build custom modules.

Oh yeah, one more thing!  You will also need to update the boot
loader stuff:

Index: sys/lib/libsa/ffsv1.c
===================================================================
RCS file: /cvsroot/src/sys/lib/libsa/ffsv1.c,v
retrieving revision 1.7
diff -u -p -r1.7 ffsv1.c
--- sys/lib/libsa/ffsv1.c       24 Jun 2019 13:58:24 -0000      1.7
+++ sys/lib/libsa/ffsv1.c       5 May 2020 19:39:22 -0000
@@ -15,7 +15,7 @@
 #define ufs_dinode	ufs1_dinode
 #define indp_t		int32_t

-#if 0
+#if 1  /*XXX-PRG 0 */
 #define	FSMOD	"wapbl/ufs/ffs"
 #endif

Index: sys/lib/libsa/ffsv2.c
===================================================================
RCS file: /cvsroot/src/sys/lib/libsa/ffsv2.c,v
retrieving revision 1.7
diff -u -p -r1.7 ffsv2.c
--- sys/lib/libsa/ffsv2.c       24 Jun 2019 13:58:24 -0000      1.7
+++ sys/lib/libsa/ffsv2.c       5 May 2020 19:39:23 -0000
@@ -15,7 +15,7 @@
 #define ufs_dinode	ufs2_dinode
 #define indp_t		int64_t

-#if 0
+#if 1  /*XXX-PRG 0 */
 #define	FSMOD	"wapbl/ufs/ffs"
 #endif



> > In any case, amd64/MODULAR is not really that modular...
> >
> > $ modstat | grep builtin | wc -l
> >     143
>
> You can strip out a lot more modules and still have a functioning
> system.  Mostly you can remove all the device drivers for devices
> that don't exist, but there are other things, too.
>
> FWIW,
>
> $ modstat | grep builtin | wc -l
>      21
> $
>
>
> +--------------------+--------------------------+-----------------------+
> | Paul Goyette       | PGP Key fingerprint:     | E-mail addresses:     |
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> +--------------------+--------------------------+-----------------------+

+--------------------+--------------------------+-----------------------+
| Paul Goyette       | PGP Key fingerprint:     | E-mail addresses:     |
| (Retired)          | FA29 0E3B 35AF E8AE 6651 | paul%whooppee.com@localhost     |
| Software Developer | 0786 F758 55DE 53BA 7731 | pgoyette%netbsd.org@localhost   |
+--------------------+--------------------------+-----------------------+