device-mapper driver missing?

ywbkgs

编译2.6.5内核时出现错误
  INSTALL drivers/char/ftape/compressor/zft-compressor.ko
  INSTALL drivers/char/ftape/zftape/zftape.ko
if [ -r System.map ]; then /sbin/depmod -ae -F System.map  2.6.5; fi
make[1]: `arch/i386/kernel/asm-offsets.s' is up to date.
  CHK     include/linux/compile.h
Kernel: arch/i386/boot/bzImage is ready
sh /usr/src/linux-2.6.5/arch/i386/boot/install.sh 2.6.5 arch/i386/boot/bzImage System.map ""
/dev/mapper/control: open failed: No such file or directory
Is device-mapper driver missing from kernel?
Command failed
请问这是怎么回事？我从网上下了一个device-mapper的rpm包，可安装了以后还是出现错误，请问这该怎么办？

xingy

我也遇到同样的问题，但还可以用，也想知道为什么

bluesky100

我也遇到了同样的问题,不过没管,一切都正常啊!