Subject: Problem in module loading automatically at boot time
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Date: Fri, 11 Jun 2004 21:14:41 +0530
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Message-ID: <1118873EE1755348B4812EA29C55A9722AF3A5@esnmail.esntechnologies.co.in>
Thread-Topic: Problem in module loading automatically at boot time
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From: "Srinivas G." <srinivasg@esntechnologies.co.in>
To: <linux-kernel@vger.kernel.org>
Cc: "Surendra I." <surendrai@esntechnologies.co.in>,
       "Subramanyam B" <subramanyamb@esntechnologies.co.in>
Sender: linux-kernel-owner@vger.kernel.org
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Hi,

I have written a small driver program called hello.c.

************************************************************************
***************
#include <linux/module.h>

MODULE_LICENSE("GPL");

int init_module(void)
{
  printk("<1>" "Hello world\n");
  return 0;
}

void cleanup_module(void)
{
  printk("<1>good bye\n");
}

************************************************************************
****************

I compiled the above program with cc -DMODULE -D__KERNEL__
-I/usr/src/linux2.4/include -O2 -c hello.c

I am using Red Hat Linux 7.3 with kernel version of 2.4.18-3.
It works fine when I load it with insmod from root prompt.

Now, I want to make it load automatically at boot time. 
For that I have used the following steps.

---> I copied the hello.o file in the
/lib/modules/2.4.18-3/kernel/drivers/block

---> I run the depmod command. It included the above path in
/lib/modules/2.4.18-3/modules.dep file.

---> I added "alias hello1 hello" entry into /etc/modules.conf file.

When I reboot the machine after the above changes, my driver is not
loaded and an error message is printed as follows.

---> depmod: *** Unresolved symbols in
/lib/modules/2.4.18-3/kernel/drivers/block/hello.o


Could anyone suggest me, if I am missing anything here?

Srinivas G


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