问题：使用内核包编译驱动时常常提示如下：
WARNING: Symbol version dump /usr/src/linux-2.6.26/Module.symvers
is missing; modules will have no dependencies and modversions.原因：通常头核心包中是没有Module.symvers这个文件的，要想获取这个文件只能到下载相同版本核心（2.6.26-1-686）的头文件，是下载不是apt-get install ！！！，只有下载的头文件中才有这个Module.symvers。把Module.symvers 复制到核心包中，然后执行如下步骤：make oldconfig && make prepare && make scripts。
然后重新编译驱动，将解决这个warning，同时也解决了版本不正确的问题
我不知道有多少人会碰上这样的问题，反正google中我发现没有人能说明白这个问题
ps：我遇到的问题是则是
运行：make -C /usr/src/linux-2.6.34-12 SUBDIRS=$PWD modules
出错如下：
make: Entering directory `/usr/src/linux-2.6.34-12'
ERROR: Kernel configuration is invalid.
include/generated/autoconf.h or include/config/auto.conf are missing.
Run 'make oldconfig && make prepare' on kernel src to fix it.
WARNING: Symbol version dump /usr/src/linux-2.6.34-12/Module.symvers
is missing; modules will have no dependencies and modversions.
scripts/Makefile.build:44: /usr/src/linux-2.6.34-12/PWD/Makefile: No such file or directory
make[1]: *** No rule to make target `/usr/src/linux-2.6.34-12/PWD/Makefile'. Stop.
make: *** [_module_PWD] Error 2
make: Leaving directory `/usr/src/linux-2.6.34-12'
运行：make oldconfig && make prepare
再次出错如下：
make: Entering directory `/usr/src/linux-2.6.34-12'
WARNING: Symbol version dump /usr/src/linux-2.6.34-12/Module.symvers
is missing; modules will have no dependencies and modversions.
CC [M] /home/xxx/test/dr/drhello.o
Building modules, stage 2.
MODPOST 1 modules
/bin/sh: scripts/mod/modpost: No such file or directory
make[1]: *** [__modpost] Error 127
make: *** [modules] Error 2
make: Leaving directory `/usr/src/linux-2.6.34-12'
加上：make scripts 可以了
make: Entering directory `/usr/src/linux-2.6.34-12'
WARNING: Symbol version dump /usr/src/linux-2.6.34-12/Module.symvers
is missing; modules will have no dependencies and modversions.
CC [M] /home/xxx/test/dr/drhello.o
Building modules, stage 2.
MODPOST 1 modules
CC /home/test/dr/drhello.mod.o
LD [M] /home/test/dr/drhello.ko
make: Leaving directory `/usr/src/linux-2.6.34-12'