[src/trunk]: src/distrib/atari/floppies Use kernfs to detect root file system...

[tsutsui <tsutsui%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2cb7ea9200fd
branches:  trunk
changeset: 828048:2cb7ea9200fd
user:      tsutsui <tsutsui%NetBSD.org@localhost>
date:      Sat Nov 25 09:40:17 2017 +0000

description:
Use kernfs to detect root file system device, instead of fat sysctl(8).

Should fix sysinst.fs overflow that prevents daily build.
Discussed on port-atari@:
 http://mail-index.netbsd.org/port-atari/2017/11/thread1.html#000558
and whole installation is briefly tested on TT030.

diffstat:

 distrib/atari/floppies/common/dot.profile |  8 +++++---
 distrib/atari/floppies/common/mtree.conf  |  3 ++-
 distrib/atari/floppies/install/list       |  5 +++--
 3 files changed, 10 insertions(+), 6 deletions(-)

diffs (71 lines):

diff -r 2fe56b1e3e52 -r 2cb7ea9200fd distrib/atari/floppies/common/dot.profile
--- a/distrib/atari/floppies/common/dot.profile Sat Nov 25 07:58:47 2017 +0000
+++ b/distrib/atari/floppies/common/dot.profile Sat Nov 25 09:40:17 2017 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: dot.profile,v 1.6 2017/11/15 16:19:19 tsutsui Exp $
+# $NetBSD: dot.profile,v 1.7 2017/11/25 09:40:17 tsutsui Exp $
 #
 # Copyright (c) 1995 Jason R. Thorpe
 # Copyright (c) 1994 Christopher G. Demetriou
@@ -49,8 +49,7 @@
 mount_gemdos() mount_msdos -G "$@"
 
 makerootwritable() {
-       # note, only handles up to partition 'j'
-       rootdev=/dev/$(sysctl -n kern.root_device)$(sysctl -n kern.root_partition | sed y/0123456789/abcdefghij/)
+       rootdev=/kern/rootdev
        if ! mount -u $rootdev / ; then
            echo "Unable to mount $rootdev read-write"
            exit 1
@@ -66,6 +65,9 @@
        echo 'erase ^H, werase ^W, kill ^U, intr ^C'
        stty newcrt werase ^W intr ^C kill ^U erase ^H 9600
 
+       # mount the kernfs so that we can check rootdev etc.
+       mount -t kernfs /kern /kern
+
        # mount root read write
        makerootwritable
 
diff -r 2fe56b1e3e52 -r 2cb7ea9200fd distrib/atari/floppies/common/mtree.conf
--- a/distrib/atari/floppies/common/mtree.conf  Sat Nov 25 07:58:47 2017 +0000
+++ b/distrib/atari/floppies/common/mtree.conf  Sat Nov 25 09:40:17 2017 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: mtree.conf,v 1.2 2016/01/30 05:15:18 tsutsui Exp $
+#      $NetBSD: mtree.conf,v 1.3 2017/11/25 09:40:17 tsutsui Exp $
 
 /set                           type=dir uname=root gname=wheel mode=0755
 
@@ -6,6 +6,7 @@
 ./bin
 ./dev
 ./etc
+./kern
 ./mnt
 ./mnt2
 ./sbin
diff -r 2fe56b1e3e52 -r 2cb7ea9200fd distrib/atari/floppies/install/list
--- a/distrib/atari/floppies/install/list       Sat Nov 25 07:58:47 2017 +0000
+++ b/distrib/atari/floppies/install/list       Sat Nov 25 09:40:17 2017 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: list,v 1.21 2017/11/15 16:37:00 tsutsui Exp $
+#      $NetBSD: list,v 1.22 2017/11/25 09:40:17 tsutsui Exp $
 
 PROG   bin/cat
 PROG   bin/chmod
@@ -25,13 +25,14 @@
 PROG   sbin/mount
 PROG   sbin/mount_cd9660
 PROG   sbin/mount_ffs
+PROG   sbin/mount_kernfs
 PROG   sbin/mount_msdos
 PROG   sbin/mount_nfs
 PROG   sbin/newfs      sbin/mount_mfs
 PROG   sbin/ping
 PROG   sbin/reboot     sbin/halt
 PROG   sbin/route
-PROG   sbin/sysctl
+#PROG  sbin/sysctl
 PROG   sbin/umount
 
 PROG   usr/bin/ftp