为什么chroot不起作用?

真正的问题是:

bcs@builder:~/dmd$ sudo strace sudo chroot /home/bcs/dmd/ /usr/bin/make -C src linux.mak 
...
chroot("/home/bcs/dmd/")                = 0
chdir("/")                              = 0
execve("/usr/bin/make", ["/usr/bin/make", "-C", "src", "-f", "linux.mak"], [/* 13 vars */]) = -1 ENOENT (No such file or directory)
write(2, "chroot: ", 8chroot: )                 = 8
write(2, "cannot run command `/usr/bin/mak"..., 34cannot run command `/usr/bin/make') = 34
write(2, ": No such file or directory", 27: No such file or directory) = 27
write(2, "\n", 1
)                       = 1
close(1)                                = 0
close(2)                                = 0
exit_group(127)                         = ?
bcs@builder:~/dmd$ ll /home/bcs/dmd/usr/bin/make
-rwxr-xr-x 1 bcs bcs 166112 Sep 17 00:41 /home/bcs/dmd/usr/bin/make*

看来 chroot 找不到 make 即使它应该在那里。你知道我遗漏了什么吗?

顺便说一句:这是一个最近的Ubuntu盒子。