build.sh failing on MAKEDEV

I'm unable to build world since some change in the last 2-3
weeks,
failing with:

#   install 
/data/Build/obj/usr/src/destdir.i386/dev/MAKEDEV
cd /data/Build/obj/usr/src/etc &&
STRIP=/data/Build/tools/bin/i386--netbsdelf-st
rip /data/Build/tools/bin/nbinstall -U -M
/data/Build/obj/usr/src/destdir.i386/M
ETALOG -D /data/Build/obj/usr/src/destdir.i386 -h sha1 -N
/usr/src/etc -c -p -r 
-T etc_pkg -o root -g wheel -m 555  MAKEDEV
/data/Build/obj/usr/src/destdir.i386
/dev
nbinstall: MAKEDEV: stat: No such file or directory

I invoke build.sh with:

(cd /usr/src;
 nice ./build.sh -u -U -x -M /data/Build/obj \
        -T /data/Build/tools distribution sets \
                kernel=GGMSMALL releasekernel=GGMSMALL
) > /var/tmp/build.log  2>&1 & tail -f
/var/tmp/build.log

Can anybody offer clues as to why I no longer can find a
MAKEDEV to
install?

-George

the problem is read-only src and the make distribution
phase:

Build finished at: Tue Jun  6 13:07:39 EST 2006
distribution ===> etc   (with: INSTALL_DONE=1)
STRIP=/data/Build/tools/bin/i386--netbsdelf-strip
/data/Build/tools/bin/nbinstal
l -U -M /data/Build/obj/usr/src/destdir.i386/METALOG -D
/data/Build/obj/usr/src/
destdir.i386 -h sha1 -N /usr/src/etc -d -o root -g wheel -m
755 -T base_pkg /dat
a/Build/obj/usr/src/destdir.i386
/data/Build/tools/bin/nbmtree -def
/usr/src/etc/mtree/NetBSD.dist -N /usr/src/et
c  -p /data/Build/obj/usr/src/destdir.i386/ -U -W
/data/Build/tools/bin/nbmtree -def
/usr/src/etc/mtree/NetBSD.dist -N /usr/src/et
c  -p /data/Build/obj/usr/src/destdir.i386/ -C -k all |  awk
'/ optional/ 
 // ' | /data/Build/tools/bin/nbcat -l >>
/data/Build/obj/usr/src/destdir
.i386/METALOG
install-etc-files ===> etc
#    create  etc//usr/src/etc/MAKEDEV
MACHINE=i386 MACHINE_ARCH=i386  NETBSDSRCDIR=/usr/src  awk
-f /usr/src/etc/MAKED
EV.awk /usr/src/etc/MAKEDEV.tmpl > /usr/src/etc/MAKEDEV
cannot create /usr/src/etc/MAKEDEV: read-only file system

-It looks like the build.sh process isn't setting an OBJDIR
derived
path for an output event...

-George

-- 
George Michaelson       |  APNIC                 
Email: ggmapnic.net    |  PO Box 2131 Milton    
Phone: +61 7 3858 3150  |  QLD 4064 Australia    
  Fax: +61 7 3858 3199  |  http://www.apnic.net