make installworld fails on 5.1 REL

hi,

im moving from beta1 to 5.1 release, I build a new kernel, booted. rm 
-rf /usr/obj did make buildworld, and when I do make installworld I get 
this:

Running test variables
PASS: Test variables detected no regression, output matches.
Running test targets
PASS: Test targets detected no regression.
Running test sysvmatch
PASS: Test sysvmatch detected no regression.
Running test lhs_expn
PASS: Test lhs_expn detected no regression.
Running test notdef
PASS: Test notdef detected no regression.
Running test modifiers
PASS: Test modifiers detected no regression.
Running test funny_targets
PASS: Test funny_targets detected no regression.
Checking to see if your booted kernel is fresh enough..
/usr/obj/usr/src/bin/sh/sh -c  'echo "Testing installed kernel for new 
sigaction(2) syscall"'
Testing installed kernel for new sigaction(2) syscall
Seems ok..
mkdir -p /tmp/install.XG0p8Esu
for prog in [ awk cap_mkdb cat chflags chmod chown  date echo egrep find 
grep  ln make mkdir mtree mv pwd_mkdb rm sed sh sysctl  test true uname 
wc zic; do  cp `which $prog` /tmp/install.XG0p8Esu;  done
cd /usr/src; MAKEOBJDIRPREFIX=/usr/obj  MACHINE_ARCH=i386  MACHINE=i386 
  CPUTYPE=  GROFF_BIN_PATH=/usr/obj/usr/src/i386/legacy/usr/bin 
GROFF_FONT_PATH=/usr/obj/usr/src/i386/legacy/usr/share/groff_font 
GROFF_TMAC_PATH=/usr/obj/usr/src/i386/legacy/usr/share/tmac 
PATH=/usr/obj/usr/src/i386/legacy/usr/sbin:/usr/obj/usr/src/i386/legacy/usr/bin:/usr/obj/usr/src/i386/legacy/usr/games:/usr/obj/usr/src/i386/usr/sbin:/usr/obj/usr/src/i386/usr/bin:/usr/obj/usr/src/i386/usr/games:/tmp/install.XG0p8Esu 
make -f Makefile.inc1 reinstall
make: Permission denied
*** Error code 126

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.


whats wrong here ?

thx for help!

Christophe
-- 
Christophe Zwecker                     mail: doc_at_zwecker.de
Hamburg, Germany                        fon: +49 179 3994867
http://www.zwecker.de

"Who is General Failure ?  And why is he reading my disk ??"