Rebuild Linux RPM

Sometimes linux RPM damaged by default which comes with the build or OS.

Below is the example of reuilding syslinux rmp, so in that case we follow step as below:

We have to download the latest version of syslinux and build the rpm cause there are some bugs in the existing version that ships with centos.

{download syslinux}

cd /root
wget http://www.kernel.org/pub/linux/utils/boot/syslinux/syslinux-3.86.tar.gz

1.extract
-------------------------------------------------------------------------
#tar -zxvf syslinux-3.86.tar.gz
#cp syslinux-3.86/syslinux.spec /usr/src/redhat/SPECS/
#cp syslinux-3.86.tar.gz /usr/src/redhat/SOURCES


2.Now building the rpm>
-------------------->

cd /usr/src/redhat/SPECS
#sed -i 's/BuildPrereq: nasm >= 2.03, perl/BuildPrereq: perl/g' /usr/src/redhat/SPECS/syslinux.spec

#rpmbuild -ba syslinux.spec

3.Installing rpm
-------------->

cd /usr/src/redhat/RPMS/i386
rpm -Uvh syslinux-3.86-1.i386.rpm