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en:linux:diskless_pxe_nfs [2020/05/06 02:00] – created alexen:linux:diskless_pxe_nfs [2020/05/06 02:08] (current) – alex
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 Install necessary packages Install necessary packages
  
 +<code>
 # apt install isc-dhcp-server tftpd-hpa pxelinux nfs-kernel-server debootstrap # apt install isc-dhcp-server tftpd-hpa pxelinux nfs-kernel-server debootstrap
 +</code>
  
 Configure network interface (ref: [[https://help.ubuntu.com/lts/serverguide/network-configuration.html.en]]).  In this case, eno1 is the external interface (facing the internet) and eno2 is the internal interface (facing the PXE booted hosts).   Configure network interface (ref: [[https://help.ubuntu.com/lts/serverguide/network-configuration.html.en]]).  In this case, eno1 is the external interface (facing the internet) and eno2 is the internal interface (facing the PXE booted hosts).  
  
-# vim /etc/netplan/99_config.yaml+Edit ''/etc/netplan/99_config.yaml''
  
 <code> <code>
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 Configure DHCP (ref: [[https://help.ubuntu.com/community/isc-dhcp-server]]) Configure DHCP (ref: [[https://help.ubuntu.com/community/isc-dhcp-server]])
  
-# vim /etc/dhcp/dhcpd.conf+Edit ''/etc/dhcp/dhcpd.conf''
  
 <code> <code>
Line 50: Line 52:
 </code> </code>
  
-# vim /etc/dhcp/reactor-host-dhcp.conf+Edit ''/etc/dhcp/reactor-host-dhcp.conf''
  
 <code> <code>
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 </code> </code>
  
-# vim /etc/dhcp/reactor-ilo-dhcp.conf+Edit ''/etc/dhcp/reactor-ilo-dhcp.conf''
  
 <code> <code>
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 </code> </code>
  
-# vim /etc/default/isc-dhcp-server+Edit ''/etc/default/isc-dhcp-server''
  
 <code> <code>
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 Start DHCP server Start DHCP server
  
-# systemctl enable --now isc-dhcp-server+Run ''systemctl enable --now isc-dhcp-server''
  
 Configure TFTP Configure TFTP
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 Configure PXE Configure PXE
  
 +<code>
 # mkdir /srv/nfs/ubuntu # mkdir /srv/nfs/ubuntu
 # cd /var/lib/tftpboot # cd /var/lib/tftpboot
Line 97: Line 100:
 # cp /usr/lib/PXELINUX/pxelinux.0 /var/lib/tftpboot # cp /usr/lib/PXELINUX/pxelinux.0 /var/lib/tftpboot
 # cp -r /usr/lib/syslinux/modules/bios /var/lib/tftpboot/boot/isolinux # cp -r /usr/lib/syslinux/modules/bios /var/lib/tftpboot/boot/isolinux
-# vim pxelinux.cfg/default+</code> 
 + 
 +Edit ''/var/lib/tftpboot/pxelinux.cfg/default''
  
 <code> <code>
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 </code> </code>
  
 +<code>
 # mkdir ubuntu # mkdir ubuntu
 # mount --bind /srv/nfs/ubuntu ubuntu # mount --bind /srv/nfs/ubuntu ubuntu
 +</code>
  
-# vim /etc/fstab +Edit ''/etc/fstab'' to append
- +
-append+
  
 <code> <code>
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 Export install and required mounts Export install and required mounts
  
-# vim /etc/exports+Edit ''/etc/exports''
  
 <code> <code>
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 </code> </code>
  
-# exportfs -rv+Run ''exportfs -rv''
  
 ===== Client hosts ===== ===== Client hosts =====
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 Install ubuntu for net boot clients (ref: [[https://help.ubuntu.com/community/Installation/OnNFSDrive]]) Install ubuntu for net boot clients (ref: [[https://help.ubuntu.com/community/Installation/OnNFSDrive]])
  
 +<code>
 # mkdir /srv/nfs # mkdir /srv/nfs
 # cd /srv/nfs # cd /srv/nfs
-# vim run_debootstrap.sh+</code> 
 + 
 +Edit ''run_debootstrap.sh''
  
 <code> <code>
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 </code> </code>
  
-# bash run_debootstrap.sh+Run ''bash run_debootstrap.sh''
  
 Do not set /srv/nfs/ubuntu/etc/hostname, hostname will come from DHCP Do not set /srv/nfs/ubuntu/etc/hostname, hostname will come from DHCP
  
 +<code>
 # mount --bind /proc ubuntu/proc # mount --bind /proc ubuntu/proc
 # chroot ubuntu # chroot ubuntu
 +</code>
  
 Set up locales Set up locales
  
-# vi /etc/locale.gen+Edit ''/etc/locale.gen'', uncomment locale (en_US.UTF-8)
  
-uncomment locale (en_US.UTF-8) +Run ''locale-gen''
- +
-# locale-gen+
  
 Install kernel, nfs-common, and SSH server Install kernel, nfs-common, and SSH server
 Do not install grub if prompted to do so Do not install grub if prompted to do so
  
 +<code>
 # apt install linux-image-generic nfs-common openssh-server # apt install linux-image-generic nfs-common openssh-server
 # chmod a+r /boot/vmlinuz* # chmod a+r /boot/vmlinuz*
 # systemctl enable ssh # systemctl enable ssh
 +</code>
  
-Enable serial console +Enable serial console by running ''systemctl enable getty@ttyS1''
- +
-# systemctl enable getty@ttyS1+
  
 Set up fstab Set up fstab
  
-# vi /etc/fstab+Edit ''/etc/fstab''
  
 <code> <code>
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 Workaround for unreadable kernel image Workaround for unreadable kernel image
  
-# vi /etc/kernel/postinst.d/chmod-vmlinuz+Edit ''/etc/kernel/postinst.d/chmod-vmlinuz''
  
 <code> <code>
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 </code> </code>
  
-# chmod a+x /etc/kernel/postinst.d/chmod-vmlinuz+Run ''chmod a+x /etc/kernel/postinst.d/chmod-vmlinuz''
  
 Edit initramfs settings for NFS boot Edit initramfs settings for NFS boot
  
-# vi /etc/initramfs-tools/initramfs.conf+Edit ''/etc/initramfs-tools/initramfs.conf''
  
 <code> <code>
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 </code> </code>
  
-Regenerate initramfs+Regenerate initramfs by running ''update-initramfs -u''
  
-# update-initramfs -u +Set root password and/or add users, install packages, etc.  Then:
- +
-Set root password and/or add users, install packages, etc.+
  
 +<code>
 # exit # exit
 # umount ubuntu/proc # umount ubuntu/proc
 +</code>
  
 At this point, it should be possible to boot a system over the network. At this point, it should be possible to boot a system over the network.
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 Note: make sure console is accessable over iLO just in case networking gets broken Note: make sure console is accessable over iLO just in case networking gets broken
  
-# vim /etc/default/ufw+Edit ''/etc/default/ufw''
  
 <code> <code>
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 </code> </code>
  
-# vim /etc/ufw/sysctl.conf+Edit ''/etc/ufw/sysctl.conf''
  
 <code> <code>
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 </code> </code>
  
-# vim /etc/ufw/before.rules+Edit ''/etc/ufw/before.rules''
 [place immediately after header comment] [place immediately after header comment]
  
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 </code> </code>
  
 +<code>
 # ufw allow ssh # ufw allow ssh
 # ufw allow in on eno2 # ufw allow in on eno2
 # ufw enable # ufw enable
 +</code>
  
en/linux/diskless_pxe_nfs.txt · Last modified: by alex
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