[Bug 1571740] [NEW] Ubuntu PXE installer won't use NFS server

[borzwazie]

Public bug reported:

I am trying to install Ubuntu 16.04 (latest rc) via PXE. I am able to do
so, but I am unable to make the process use my local NFS server,
regardless of the options I use.

I have set the following options in my pxelinux.cfg file:

prompt 0
timeout 1
default auto
label auto
menu label ^Auto
menu default
kernel distributions/ubuntu/16.04.rc2/install/netboot/ubuntu-installer/amd64/linux
ipappend 2
append vga=normal initrd=distributions/ubuntu/16.04.rc2/install/netboot/ubuntu-installer/amd64/initrd.gz auto=true url=http://192.168.1.10/ks/16.04.rc2.ks.cfg locale=en_US setup/layoutcode=en_US console-setup/layoutcode=en keyboard-configuration/layoutcode=us console=tty0 console=ttyS0,115200n8 interface=auto net.ifnames=0 netboot=nfs nfsroot=192.168.1.10/var/lib/tftpboot/distributions/ubuntu/16.04.rc2 --


Here is the contents of my /etc/exports on my NFS server. I have confirmed that I can mount this export on another Linux machine:

/var/lib/tftpboot       *(ro,async,no_root_squash,no_subtree_check)

If I use alt-F4 during the install process, I can see that the installer
is downloading files from http://archive.ubuntu.com. This, despite the
fact that I'm using an nfsroot, and despite the fact that I include the
following in my preseed file:

d-i     live-installer/net-image string http://192.168.1.10/distributions/ubuntu/16.04.rc2/install/filesystem.squashfs
d-i     mirror/country                  string enter information manually
d-i     mirror/http/mirror select       192.168.1.10
d-i     mirror/http/hostname string     192.168.1.10
d-i     mirror/http/directory           string /distributions/ubuntu/16.04.rc2/
d-i     mirror/suite                    string xenial

** Affects: pxe (Ubuntu)
     Importance: Undecided
         Status: New

** Package changed: bash (Ubuntu) => pxe (Ubuntu)

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https://bugs.launchpad.net/bugs/1571740

Title:
  Ubuntu PXE installer won't use NFS server

Status in pxe package in Ubuntu:
  New

Bug description:
  I am trying to install Ubuntu 16.04 (latest rc) via PXE. I am able to
  do so, but I am unable to make the process use my local NFS server,
  regardless of the options I use.

  I have set the following options in my pxelinux.cfg file:

  prompt 0
  timeout 1
  default auto
  label auto
  menu label ^Auto
  menu default
  kernel distributions/ubuntu/16.04.rc2/install/netboot/ubuntu-installer/amd64/linux
  ipappend 2
  append vga=normal initrd=distributions/ubuntu/16.04.rc2/install/netboot/ubuntu-installer/amd64/initrd.gz auto=true url=http://192.168.1.10/ks/16.04.rc2.ks.cfg locale=en_US setup/layoutcode=en_US console-setup/layoutcode=en keyboard-configuration/layoutcode=us console=tty0 console=ttyS0,115200n8 interface=auto net.ifnames=0 netboot=nfs nfsroot=192.168.1.10/var/lib/tftpboot/distributions/ubuntu/16.04.rc2 --

  
  Here is the contents of my /etc/exports on my NFS server. I have confirmed that I can mount this export on another Linux machine:

  /var/lib/tftpboot       *(ro,async,no_root_squash,no_subtree_check)

  If I use alt-F4 during the install process, I can see that the
  installer is downloading files from http://archive.ubuntu.com. This,
  despite the fact that I'm using an nfsroot, and despite the fact that
  I include the following in my preseed file:

  d-i     live-installer/net-image string http://192.168.1.10/distributions/ubuntu/16.04.rc2/install/filesystem.squashfs
  d-i     mirror/country                  string enter information manually
  d-i     mirror/http/mirror select       192.168.1.10
  d-i     mirror/http/hostname string     192.168.1.10
  d-i     mirror/http/directory           string /distributions/ubuntu/16.04.rc2/
  d-i     mirror/suite                    string xenial

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