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uebayasi/ubuntu-pxe-nfsroot.md

Last active September 7, 2016 10:37
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Ubuntu PXE + NFS root
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ubuntu-pxe-nfsroot.md

Summary

  • Not difficult but documentation inaccurate

Overview

  • Build PXE + NFS root environment for development
    • KVM
    • Serial console
  • Basically [1] but tweaks needed
    • tftp
      • Ubuntu's default tftp directory is located at /var/lib/tftpboot instead of /tftpboot
    • pxelinux.cfg
      • /tftpboot/pxelinux.cfg/default should have a DEFAULT line point to a LABEL name
      • See below
    • XXX More?

Appendix

pxelinux.cfg

Example in [1] doesn't have a DEFAULT line. A workable example looks like:

DEFAULT multi
LABEL multi
 KERNEL vmlinuz-4.4.0-36-generic
 APPEND root=/dev/nfs initrd=initrd.img-4.4.0-36-generic nfsroot=192.168.128.1:/home/uebayasi/debootstrap ip=dhcp rw console=ttyS0,115200
LABEL single
 KERNEL vmlinuz-4.4.0-36-generic
 APPEND root=/dev/nfs initrd=initrd.img-4.4.0-36-generic nfsroot=192.168.128.1:/home/uebayasi/debootstrap ip=dhcp rw console=ttyS0,115200 init=/bin/bash

References

  1. https://help.ubuntu.com/community/DisklessUbuntuHowto#Creating_your_NFS_installation
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