[Bug 1887767] Re: ubuntu 20.04 ipxe boot fails

[Phil Kauffman]

This comment only serves to help OP an not debug the reason NFS boot
doesn't work.

I was able to boot the iso using http only:

kernel ${boot-url}nfs/focal/casper/vmlinuz
initrd ${boot-url}nfs/focal/casper/initrd
imgargs vmlinuz initrd=initrd boot=casper ip=dhcp url=${boot-url}ubuntu/focal/ubuntu-20.04.1-desktop-amd64.iso maybe-ubiquity
boot

If you find out how to boot via NFS I'd like to know how. :)

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https://bugs.launchpad.net/bugs/1887767

Title:
  ubuntu 20.04 ipxe boot fails

Status in focal package in Ubuntu:
  Confirmed
Status in ubiquity package in Ubuntu:
  Confirmed

Bug description:
  The problem:
  The following iPXE cmdline fails to boot the 20.04 Desktop iso served via NFS but works flawlessly for 18.04 and earlier:
  "kernel images/ubuntu_desktop_20/casper/vmlinuz
  initrd images/ubuntu_desktop_20/casper/initrd
  imgargs vmlinuz initrd=initrd root=/dev/nfs boot=casper netboot=nfs nfsroot=192.168.5.1:/var/www/images/ubuntu_desktop_20/ ip=dhcp --
  boot"

  During early boot, the only error message printed is:
  "Unable to find a live file system on the network" with no further help on why the failure occoured or how to resolve it.

  How to reproduce:
  1. Download the official ubuntu desktop iso
  2. Copy casper directory to nfsroot location
  5. Boot client PC
  6. Watch boot fail

  I am not sure why it's failing.

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