On Thu, Sep 28, 2017 at 10:00 AM, Nick Hibma <n...@van-laarhoven.org> wrote:
> I created a new kernel config file from scratch, wondered what the > GEOM_PART_MBR option and friends were doing, search for them, didn't find > them in the tree, and deleted them from my config. But... de resulting disk > image didn't boot, because of the fact that it didn't recognise the MBR > partitions (it only had a single diskid entry on the mount-root prompt). > > Can anyone explain to me how these kernel options work, as in: they are > defined in kernel configs and as a consequence in opt_geom.h, but how are > they actually used to select which geom_part_* modules/kernel parts to > build? I thought these options were translated to stuff that cpp would use, > but there are not uses of for example GEOM_PART_MBR anywhere for example! > > > The module always build them because they are listed in the module's > Makefile. > > The kernel only sometimes does. Here's the key lines from conf/files: > files:geom/geom_bsd_enc.c optional geom_bsd | geom_part_bsd > files:geom/part/g_part_apm.c optional geom_part_apm > files:geom/part/g_part_bsd.c optional geom_part_bsd > files:geom/part/g_part_bsd64.c optional geom_part_bsd64 > files:geom/part/g_part_ebr.c optional geom_part_ebr > files:geom/part/g_part_gpt.c optional geom_part_gpt > files:geom/part/g_part_ldm.c optional geom_part_ldm > files:geom/part/g_part_mbr.c optional geom_part_mbr > files:geom/part/g_part_vtoc8.c optional geom_part_vtoc8 > > which turn on/off which files get included. config "helpfully" converts the > upper case options to lower case for this. > > Warner > > > *slaps forehead* Goose chase! > > I actually knew that... and, at the time, thought it was weird behaviour. > ''grep" would not have failed me if those options would be uppercase there > ... > I've been nibbled to death by these geese often enough to have a PTSD-like reaction when someone mentions it and habitually add -i to my greps... Warner _______________________________________________ firstname.lastname@example.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"