Centos 6.10 add updated i40e ixgbe drivers to netinstall iso

install

# Easiest done from a minimal clean 6.10 stock install as you need to be on same kernel as iso.
# Be root..

yum install -y p7zip p7zip-plugins genisoimage gcc make kernel-devel

# download and extract iso
cd /tmp
mkdir centint
wget https://vault.centos.org/6.10/isos/x86_64/CentOS-6.10-x86_64-netinstall.iso
7z x -y -o/tmp/centint/ -r /tmp/CentOS-6.10-x86_64-netinstall.iso
# For kickstart automation, you can adjust the file
nano /tmp/centint/isolinux/isolinux.cfg
# example file below

# To save space on iso (228M), the rescue/test images will not be needed if you are doing remote netinstall
rm -rf /tmp/centint/images

# extract initrd
cd /tmp/centint/isolinux
mkdir initrd-new
mv initrd.img initrd.img.xz
xz --format=lzma initrd.img.xz --decompress
cd initrd-new
cpio -ivdum < ../initrd.img


# Download drivers and compile/install
cd /tmp
# Latest driver I could download that compiled properly
wget https://downloadmirror.intel.com/29659/eng/i40e-2.11.21.tar.gz
wget https://sourceforge.net/projects/e1000/files/ixgbe%20stable/5.11.3/ixgbe-5.11.3.tar.gz/download -O ixgbe-5.11.3.tar.gz
tar xvzf i40e-2.11.21.tar.gz
tar xvzf ixgbe-5.11.3.tar.gz
cd /tmp/i40e-2.11.21/src
make
make install
cd /tmp/ixgbe-5.11.3/src
make
make install

# Copy drivers
cp -r /lib/modules/2.6.32-754.35.1.el6.x86_64/updates/drivers/ /root/centint/isolinux/initrd-new/modules/2.6.32-754.el6.x86_64/updates/

# Prepare for depmod - manual way
egrep 'i40e|ixgbe' /lib/modules/2.6.32-754.35.1.el6.x86_64/modules.symbols
egrep 'i40e|ixgbe' /lib/modules/2.6.32-754.35.1.el6.x86_64/modules.alias
egrep 'i40e|ixgbe' /lib/modules/2.6.32-754.35.1.el6.x86_64/modules.dep

# Take this data and remove "old" content from the modules files on the initrd files, and insert this new data.
nano /root/centint/isolinux/initrd-new/modules/2.6.32-754.el6.x86_64/modules.symbols
nano /root/centint/isolinux/initrd-new/modules/2.6.32-754.el6.x86_64/modules.alias
nano /root/centint/isolinux/initrd-new/modules/2.6.32-754.el6.x86_64/modules.dep

### USE AT OWN RISK ###
# If not doing manually, automatic adjusting can be done, may delete stuff it shouldn't (works for these versions though)

cd /root/centint/isolinux/initrd-new/modules/2.6.32-754.el6.x86_64/
sed -i '/ixgbe/d' modules.symbols modules.alias modules.dep
sed -i '/i40e/d' modules.symbols modules.alias modules.dep
cd /lib/modules/2.6.32-754.35.1.el6.x86_64/
egrep 'ixgbe|i40e' modules.symbols >> /tmp/centint/isolinux/initrd-new/modules/2.6.32-754.el6.x86_64/modules.symbols
egrep 'ixgbe|i40e' modules.alias >> /tmp/centint/isolinux/initrd-new/modules/2.6.32-754.el6.x86_64/modules.alias
egrep 'ixgbe|i40e' modules.dep >> /tmp/centint/isolinux/initrd-new/modules/2.6.32-754.el6.x86_64/modules.dep


# Depmod
# for Depmod to run we got to adjust modules kernel folder
cd /root/centint/isolinux/initrd-new/modules/
mv 2.6.32-754.el6.x86_64 2.6.32-754.35.1.el6.x86_64
depmod -a -v -b /root/centint/isolinux/initrd-new
mv 2.6.32-754.35.1.el6.x86_64 2.6.32-754.el6.x86_64

# Generate ISO
mkisofs -r -V "Centos 6.10-nics" -b isolinux/isolinux.bin -c isolinux/boot.cat -cache-inodes -J -l -no-emul-boot -boot-load-size 4 -boot-info-table -o /tmp/centos6-nics.iso /tmp/centint

# Remember to install RPM of nic drivers during kickstart, or you will have no network when the system boots for the first time.
# .spec files are included in the driver packages if you can't find an rpm online.
# Remember to compile on the kernel you install if you are installing newer kernel during kickstart.
yum install newer-kernel-package-here 
# reboot to kernel
yum install -y rpm-build
cp /tmp/ixgbe-5.11.3.tar.gz /root/rpmbuild/SOURCES/
cp /tmp/i40e-2.11.21.tar.gz /root/rpmbuild/SOURCES/
cp /tmp/ixgbe-5.11.3/ixgbe.spec /root/rpmbuild/SPECS/
cp /tmp/i40e-2.11.21/i40e.spec /root/rpmbuild/SPECS/
rpmbuild -ba /root/rpmbuild/SPECS/ixgbe.spec
rpmbuild -ba /root/rpmbuild/SPECS/i40e.spec

# Upload rpm files to your repo or server for install during kickstart
# RPM Files in 
/root/rpmbuild/RPMS/x86_64

isolinux.cfg

default vesamenu.c32
#prompt 1
timeout 600

display boot.msg

menu background splash.png
menu color border 0 #ffffffff #00000000
menu color sel 7 #ffffffff #ff000000
menu color title 0 #ffffffff #00000000
menu color tabmsg 0 #ffffffff #00000000
menu color unsel 0 #ffffffff #00000000
menu color hotsel 0 #ff000000 #ffffffff
menu color hotkey 7 #ffffffff #ff000000
menu color scrollbar 0 #ffffffff #00000000

label linux
  menu label ^Install via kickstart with NIC drivers
  menu default
  kernel vmlinuz
  append initrd=initrd.img ksdevice=link ks=https://www.example.com/kickstart.ks