installworld broken - /usr/obj/usr/src/bin/sh/sh: not found

Hi

I had system with Mar 14 kernel and sources, simply cvsupped, did
buildworld and this is what I got in the installworld phase. No
/etc/make.conf exists nor are any variables set in the environment,
this is as plain as I can get.

root:vallo# make installworld
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"'
/usr/obj/usr/src/bin/sh/sh: not found
*** Error code 127

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

Stop in /usr/src.

Doing ls -la of /usr/obj/usr/src/bin/sh/ yields the following result:

root:vallo# ls -la /usr/obj/usr/src/bin/sh/
total 270
drwxr-xr-x   2 root  wheel    512 May 14 14:56 .
drwxr-xr-x  37 root  wheel   1024 May 14 14:56 ..
-rwxr-xr-x   1 root  wheel  79328 May 14 14:56 mkinit
-rw-r--r--   1 root  wheel   6556 May 14 14:56 mkinit.o
-rwxr-xr-x   1 root  wheel  80901 May 14 14:56 mknodes
-rw-r--r--   1 root  wheel   8384 May 14 14:56 mknodes.o
-rwxr-xr-x   1 root  wheel  80763 May 14 14:56 mksyntax
-rw-r--r--   1 root  wheel   9620 May 14 14:56 mksyntax.o
-- 
Vallo Kallaste