kernel upgrade - make modules_install = unresolved symbols

Avatar · 04-07-2006, 04:32 PM

Please help!

I am trying to upgrade a linux kernel for the first time. (Well second time, first time I forgot to include any modules.)

My computer is Mandrake MultiNetwork firewall, which is RPM based, and uses kernel 2.4.18-8. I have downloaded the kernel sources from www.kernel.org, and the version is 2.4.31.

I have done the following with good results.

1. Copy my old config file, from working system, to the new kernel dir.
2. make clean, make mrproper
3. make menuconfig (added a few options)
4. nohup make bzImage
5. nohup make modules
6. make modules_install

The end of the output of above looked like this:

Code:

find kernel -path '*/pcmcia/*' -name '*.o' | xargs -i -r ln -sf ../{} pcmcia
if [ -r System.map ]; then /sbin/depmod -ae -F System.map  2.4.31-customerc.040706; fi
depmod: *** Unresolved symbols in /lib/modules/2.4.31-customerc.040706/kernel/crypto/autoload.o
depmod:         crypto_alg_lookup
depmod: *** Unresolved symbols in /lib/modules/2.4.31-customerc.040706/kernel/crypto/proc.o
depmod:         crypto_alg_sem
depmod:         crypto_alg_list
depmod: *** Unresolved symbols in /lib/modules/2.4.31-customerc.040706/kernel/drivers/mtd/maps/sc520cdp.o
depmod:         mtd_concat_destroy_Rsmp_8739cf4e
depmod:         mtd_concat_create_Rsmp_5f22e6e1
make: *** [_modinst_post] Error 1

I looked on Google to see what it means and it said that this error happens if the modules were compiled by another kernel. But I don't know how to fix the error or get past it. This is a production server and it is still running fine under 2.4.18-8, I'd like to keep the old kernel as well in case anything happens.

Any help appreciated, thanks!

bigrigdriver · 04-07-2006, 06:43 PM

You can use the old .config file if you want to, but, to compile for the new kernel, you MUST edit the Makefile to change the kernel version number. Otherwise, it will just recompile the kernel version listed therein.

kaz2100 · 04-08-2006, 05:35 PM

Does

Code:

make oldconfig

do any good?

Avatar · 04-10-2006, 07:42 AM

bigrigdriver:

I had edited the Makefile and changed the EXTRAVERSION variable. Is this what you mean? I seem to have forgotten to mention a few steps I did.

...
3. "make menuconfig"
3.1 "make dep"
3.2 "vi Makefile" - changed EXTRAVERSION
4. nohup make bzImage
...

Kaz2100

At which step would I do "make oldconfig"? (Wondering if I have to re-do any steps)

Thanks!

Avatar · 04-10-2006, 07:50 AM

I read in This post: http://www.linuxquestions.org/questi...ad.php?t=38001 that it is possible my compilation is using the wrong (libraries/headers/includes/whatever) located in /usr/include/linux and /usr/include/asm. How can I make my module compile using the correct version? (And how can I tell which version is being used?)

kaz2100 · 04-10-2006, 11:05 AM

At step #1.

Copy .config file to new dierctory, then "make oldconfig", check README file.

Avatar · 04-10-2006, 11:10 AM

kaz2100, I have done "make oldconfig" followed by "make dep" "make bzImage" "make modules" and finally "make modules_install". Make oldconfig asked me about whether to install cryptographic and I said NO. It did get rid of the crypto errors, now my make modules_install output looks like:

Code:

depmod: *** Unresolved symbols in /lib/modules/2.4.31-customerc.040706/kernel/drivers/mtd/maps/sc520cdp.o
depmod:         mtd_concat_destroy_Rsmp_8739cf4e
depmod:         mtd_concat_create_Rsmp_5f22e6e1
make: *** [_modinst_post] Error 1

Only one more error to go! Thanks for any help.

kaz2100 · 04-10-2006, 01:23 PM

try

Code:

make clean; make dep; make; make modules; make modules_install; make bzImage

I think, if I remember correct, with 2.4 kernels, that the command line above rebuilds modules directory completely.

Avatar · 04-11-2006, 07:43 AM

Thanks for your help.

I have solved the problem by re-compiling the kernel (make menuconfig) and DE-selecting "Memory Technology Device support (MTD)" then re-doing all the steps as originally posted.

I hope this can help someone!