[CentOS] rebuilding the kernel.

Sun Aug 10 23:04:21 UTC 2008
Yahia Tachwali <ytachwali at signalogic.com>

Akemi Yagi wrote:

>On Sun, Aug 10, 2008 at 3:07 PM, Yahia Tachwali
><ytachwali at signalogic.com> wrote:
>
>  
>
>>Thank you for the info, I have installed the rpm and I ended up with the
>>following :
>>----------------------------------------------------------------------------------------------------------
>>[root at localhost i686]# rpm -ivh kernel-*.rpm
>>Preparing...                ###########################################
>>[100%]
>>      package kernel-2.6.9-67.0.22.EL is already installed
>>      package kernel-devel-2.6.9-67.0.22.EL is already installed
>>      package kernel-hugemem-devel-2.6.9-67.0.22.EL is already installed
>>      package kernel-smp-devel-2.6.9-67.0.22.EL is already installed
>>      file /boot/System.map-2.6.9-67.0.22.EL from install of
>>kernel-2.6.9-67.0.22.EL conflicts with file from package
>>kernel-2.6.9-67.0.22.EL
>>      file /boot/config-2.6.9-67.0.22.EL from install of
>>kernel-2.6.9-67.0.22.EL conflicts with file from package
>>kernel-2.6.9-67.0.22.EL
>>      file /boot/symvers-2.6.9-67.0.22.EL.gz from install of
>>kernel-2.6.9-67.0.22.EL conflicts with file from package
>>kernel-2.6.9-67.0.22.EL
>>      file /boot/vmlinuz-2.6.9-67.0.22.EL from install of
>>kernel-2.6.9-67.0.22.EL conflicts with file from package
>>kernel-2.6.9-67.0.22.EL
>>----------------------------------------------------------------------------------------------------------
>>
>>However, I was able to reboot with the new kernel but still I can not find o
>>files for my HDLC in the kernel path under driver/net/wan. I am listing
>>below the steps that I did to install a new customized kernel starting from
>>fresh installation of CentOS 4.4 with kernel 2.6.9-42
>>
>>1- getting the kernel:
>>  1.1 access as root
>>  1.2 yum install rpm-build redhat-rpm-config
>>  1.3 su user
>>  1.4 cd
>>  1.5 mkdir -p rpmbuild/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
>>  1.6 echo "%_topdir %(echo $HOME)/rpmbuild" > .rpmmacros
>>  1.7 rpm -i
>>http://mirror.centos.org/centos/4/updates/SRPMS/kernel-2.6.9-67.0.22.EL.src.rpm
>>      2> /dev/null
>>  1.8 cd ~/rpmbuild/SPECS
>>  1.9 rpmbuild -bp --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee
>>prep-out.log
>>    
>>
>
>Looks good so far.
>
>  
>
>>These so far sound fine. but then I guess there might be a mistake or
>>missing step in my procdure to build the new kernel:
>>
>>2- building a new kernel:
>>  2.1 access as root
>>  2.2 rpmbuild -bp --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee
>>prep-out.log
>>    
>>
>
>The above rpmbuild is not necessary.  You have done it correctly in
>step 1.9 (as user).
>
>  
>
>>  2.3 su user
>>  2.4 cd ~/rpmbuild/BUILD/kernel-2.6.18/linux-2.6.18.`uname -m`
>>  2.5 cp configs/kernel-2.6.18-i686.config .config
>>  2.6 make oldconfig
>>  2.7 make menuconfig {here I left it as is and did not do any modification
>>since I am                 planning to include HDLC as a module after build
>>a complete custom kernel}
>>    
>>
>
>I am confused.  If you did not make any changes here, why would you
>expect your new kernel to provide the HDLC support (see above) ???
>
>  
>
>>  2.8 [user at host SPECS]$ rpmbuild -bb --target=`uname -m` kernel-2.6.spec 2>
>>build-err.log |         tee build-out.log
>>    
>>
>
>Before that step (rpmbuild -bb), you should at least edit the line:
>
>%define buildid .your_identifier
>
>as written in the Wiki tutorial to make your rpm's version different
>from the distro's.
>
>  
>
>>  2.9 su
>>  2.10/ rpm -ivh kernel-*.rpm
>>
>>  and after the last command I have got the conflict warning above. What is
>>wrong in my             installation procedure! :( Please help.
>>/
>>    
>>
>
>Your "customized" kernel has the same version/revision as the
>distro's.  So, it won't install unless you force it (not recommended
>at all).
>
>Akemi
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>  
>
Thank you. So if it is not recommended to force it , what should I do to 
get it installed ?