PXE Boot : Network Installation (UEFI)

	Install CentOS Stream to a client computer which starts on UEFI from a PXE Server via network.
[1]	Configure basic settings for PXE Server, refer to here.
[2]	Download an ISO image of CentOS Stream first to your PXE server. On the example below, CentOS Stream 9 ISO image is under [/home].

[root@dlp ~]#  mkdir rpm [root@dlp ~]#  dnf -y install --downloadonly --downloaddir=/root/rpm shim grub2-efi-x64 [root@dlp ~]#  cd rpm [root@dlp rpm]#  rpm2cpio shim-x64-*.rpm | cpio -dimv [root@dlp rpm]#  rpm2cpio grub2-efi-x64-*.rpm | cpio -dimv [root@dlp rpm]#  cp ./boot/efi/EFI/BOOT/BOOTX64.EFI /var/lib/tftpboot/ [root@dlp rpm]#  cp ./boot/efi/EFI/centos/grubx64.efi /var/lib/tftpboot/ [root@dlp rpm]#  chmod 644 /var/lib/tftpboot/{BOOTX64.EFI,grubx64.efi} [root@dlp rpm]#  cd [root@dlp ~]#  mkdir -p /var/pxe/centos-st9 [root@dlp ~]#  mkdir /var/lib/tftpboot/centos-st9 [root@dlp ~]#  mount -t iso9660 -o loop,ro /home/CentOS-Stream-9-latest-x86_64-dvd1.iso /var/pxe/centos-st9 [root@dlp ~]#  cp /var/pxe/centos-st9/images/pxeboot/{vmlinuz,initrd.img} /var/lib/tftpboot/centos-st9/ [root@dlp ~]#  vi /var/lib/tftpboot/grub.cfg # create new # replace PXE servers hostname or IP address to your own one set timeout=10 menuentry 'Install CentOS Stream 9' { linuxefi centos-st9/vmlinuz ip=dhcp inst.repo=http://10.0.0.30/centos-st9 initrdefi centos-st9/initrd.img }

[3]	Install and Start Apache httpd, refer to here. Next, add following settings.

[root@dlp ~]#  vi /etc/httpd/conf.d/pxeboot.conf # create new Alias /centos-st9 /var/pxe/centos-st9 <Directory /var/pxe/centos-st9> Options Indexes FollowSymLinks # access permission Require ip 127.0.0.1 10.0.0.0/24 </Directory> [root@dlp ~]#  systemctl restart httpd

[4]	Enable network booting on UEFI settings of client computer and start it, then installation menu you set is shown, push Enter key to proceed to install.

[5]	After finishing successfully, that's OK if CentOS Stream started normally.