How to run '"hello"

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You need to unload the module, ie, rmmod hello .

You need to enable "module unloading" in kernel config.

And enable "rmmod" in busybox.

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Dear hippo,

According to your advice,after exute "make" instruction,"zImage" is buiilded.

Then I exute "make romfs".

Then I exute "make linux zImage",just like the fllowing:

I do not know wether "zImage" is right?

$ make linux zImage
make ARCH=nios2nommu CROSS_COMPILE=nios2-linux-uclibc-  ARCH=nios2nommu CROSS_COMPILE=nios2-linux-uclibc- -C linux-2.6.x zImage || exit 1
  no emulation specific options.
make: Entering directory `/home/wangzhiwunpu/uClinux-dist-test/linux-2.6.x'
  CHK     include/nios2_system.h
  CHK     include/linux/version.h
  CHK     include/linux/compile.h
  CHK     usr/initramfs_list
  OBJCOPY arch/nios2nommu/boot/zImage
Kernel: arch/nios2nommu/boot/zImage is ready
make: Leaving directory `/home/wangzhiwunpu/uClinux-dist-test/linux-2.6.x'
if ; then 
        ln -f linux-2.6.x/vmlinux linux-2.6.x/linux; 
fi
make: *** No rule to make target `zImage'.  Stop.
$
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When I download "zImage" to my custom board,exute the instrution "modprobe mytest",the information "mytest : applet not found".

Whould you please tell me steps of "how to do a simple drive" ?