 | | | About kernel-modules version mismatch | About kernel-modules version mismatch 2004-08-06 - By Mir Muzaffar Ali
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Thank you for your reply. I'm sure this will work because it makes sense since
there will be only one kernel on the system. Redhat uses the "custom" tag as a
precaution when recompiling kernels so that the original is left intact and one
would be able to reboot in case something goes wrong with the recompiled
version.
However I have found another way as well. If you include the -I flag and give
the proper path to the current kernel header files, the module will be inserted
. This is what I did when I booted the "custom" kernel
gcc -c hello.c -I/usr/src/linux-2 (See http://nux-2.ora-code.com).4.20-8/include
and then
insmod hello.o
I have got the directory linux-2 (See http://nux-2.ora-code.com).4.20-8 and the include directory in it has the
header files for which the current "custom" kernel was compiled against.
Anyways thank you for the prompt reply Brian.
Mir
*******************************************************************************
**********************
Go re-compile the kernel, but edit Makefile in /usr/src/linux
In the Makefile, near the top, is a line defining a name as being
"-8custom"
Change that to read ""
then make & install the kernel
After that, you'll be building kernels and modules on the same version.
Brian Brunner
brian.t.brunner@(protected)
(610)796-5838
>>> mir_rulz16@(protected) 08/05/04 05:06PM >>>
Hi,
I'm relative new to linux and I've just started module programming
following the Alessandro Rubini and Jonathan Corbet "Linux Device Drivers"
book for kernel 2.4. I have got Redhat 9.0 installed on my system. I
try to use "insmod" to insert a module called hello.o, however the
system returns a message
hello.o: kernel-module version mismatch.
hello.o was compiled for kernel version 2.4.20
while this kernel is 2.4.20-8custom
In the book it is mentioned that it would be better to recompile the
kernel without the version support for modules. I believe I did the
right thing by simply changing the option of "loadable module support ->
set version information on all module symbols" from y to n. I ran "make
xconfig" and followed the steps carefully listed in the Red Hat
documentation CD plus the steps listed on Alessandro's website and as you can
see from the message I booted the recompiled custom kernel without any
problems.
I don't know if this information is pertinent as well but I typed the
following
"gcc --version" and I got
"gcc (GCC) 3.2.2.20030222 (Reh Hat Linux 3.2.2-5)" followed by some
text. I believe my compiler is ok. Could someone please help me out? Is
what I did the thing to do or was I suppose to do something else in
order to remove version support?
Mir
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<DIV>Thank you for your reply. I'm sure this will work because it makes
sense since there will be only one kernel on the system. Redhat uses the
"custom" tag as a precaution when recompiling kernels so that the original is
left intact and one would be able to reboot in case something goes wrong with
the recompiled version.</DIV>
<DIV> </DIV>
<DIV>However I have found another way as well. If you include the -I flag
and give the proper path to the current kernel header files, the module will be
inserted. This is what I did when I booted the "custom" kernel</DIV>
<DIV> </DIV>
<DIV>gcc -c hello.c -I/usr/src/linux-2 (See http://nux-2.ora-code.com).4.20-8/include</DIV>
<DIV> </DIV>
<DIV>and then </DIV>
<DIV> </DIV>
<DIV>insmod hello.o</DIV>
<DIV> </DIV>
<DIV>I have got the directory linux-2 (See http://nux-2.ora-code.com).4.20-8 and the include directory in it
has the header files for which the current "custom" kernel was compiled against
. Anyways thank you for the prompt reply Brian.</DIV>
<DIV> </DIV>
<DIV>Mir</DIV>
<DIV> </DIV>
<DIV>**************************************************************************
***************************</DIV>
<DIV> </DIV>
<DIV>Go re-compile the kernel, but edit Makefile in /usr/src/linux<BR>In the
Makefile, near the top, is a line defining a name as being <BR>"-8custom"
<BR>Change that to read ""<BR>then make & install the kernel<BR>After that,
you'll be building kernels and modules on the same version.<BR><BR>Brian
Brunner<BR><A href="http://us.f513.mail.yahoo.com/ym/Compose?To=brian.t.brunner
@(protected)&YY=27062&order=down&sort=date&pos=0&view=a
&head=b">brian.t.brunner@(protected)</A><BR>(610)796-5838<BR><BR>>>
;> <A href="http://us.f513.mail.yahoo.com/ym/Compose?To=mir_rulz16@(protected)
&YY=27062&order=down&sort=date&pos=0&view=a&head=b">mir
_rulz16@(protected)</A> 08/05/04 05:06PM >>><BR>Hi,<BR> <BR>I'm relative
new to linux and I've just started module programming <BR>following the
Alessandro Rubini and Jonathan Corbet "Linux Device Drivers" <BR>book for
kernel 2.4. I have got Redhat 9.0 installed on my
system. I <BR>try to use "insmod" to insert a module called hello.o,
however the <BR>system returns a message <BR> <BR>hello.o: kernel-module
version mismatch.<BR>hello.o was compiled for kernel version 2.4.20<BR>while
this kernel is 2.4.20-8custom<BR> <BR>In the book it is mentioned that it would
be better to recompile the <BR>kernel without the version support for modules.
I believe I did the <BR>right thing by simply changing the option of
"loadable module support -> <BR>set version information on all module symbols
" from y to n. I ran "make <BR>xconfig" and followed the steps carefully
listed in the Red Hat <BR>documentation CD plus the steps listed on Alessandro
's website and as you can <BR>see from the message I booted the recompiled
custom kernel without any <BR>problems.<BR> <BR>I don't know if this
information is pertinent as well but I typed the <BR>following<BR> <BR>"gcc -
-version" and I got<BR> <BR>"gcc (GCC) 3.2.2.20030222 (Reh Hat Linux 3.!
2.2-5)"
followed by some <BR>text. I believe my compiler is ok. Could
someone please help me out? Is <BR>what I did the thing to do or was I
suppose to do something else in <BR>order to remove version support?<BR> <BR
>Mir<BR><BR><BR></DIV><p>
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