*** This bug is a duplicate of bug 1954716 ***
https://bugs.launchpad.net/bugs/1954716
** This bug has been marked a duplicate of bug 1954716
rpi nfsroot vers=4 not supported anymore?
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https://bugs.launchpad.net/bugs/1983620
Title:
Cannot netboot Raspberry Pi 4B with NFSv4
Status in linux-raspi package in Ubuntu:
New
Bug description:
I am trying to do a network boot of Ubuntu 22.04 on a Raspberry Pi 4B
(RPi4). I had the same problem previously with Ubuntu 20.04.
I can network boot Ubuntu using TFTP if I specify nfsroot as an NFSv3
address. However, I then run into problems with overlayroot not
working (see https://askubuntu.com/questions/1401854/why-doesnt-
overlayroot-work-properly-with-a-net-booted-nfs-root-on-a-rpi4).
I suspect overlayroot only works with NFSv4 (at least, I hope this is
a way out of the quandary). However, when I use an NFSv4 address for
nfsroot in cmdline.txt, I get "permissions denied" errors. Adding
NFSv4 parameters (nfsvers=4, vers=4, rootfstype=nfs4) to cmdline.txt
has no apparent effect: indeed, if I put in an NFSv3 address they get
ignored completely.
I have been working on this problem since April and have received no
feedback at all on AskUbuntu
(https://askubuntu.com/questions/1421606/rpi4-network-boot-
configuration-error-or-bug), SuperUser
(https://superuser.com/questions/1716358/how-to-netboot-a-raspberry-
pi-with-tftp-and-nfs-on-a-synology-nas) or Launchpad (which I find
difficult to navigate). It may not be a bug, in which case I
apologise, but it looks like one to me and - without feedback - I have
no way of determining whether it is or not.
root@q-ubu:~# lsb_release -rd
Description: Ubuntu 22.04.1 LTS
Release: 22.04
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-1012-raspi 5.15.0-1012.14
ProcVersionSignature: Ubuntu 5.15.0-1012.14-raspi 5.15.39
Uname: Linux 5.15.0-1012-raspi aarch64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: arm64
CasperMD5CheckResult: unknown
Date: Thu Aug 4 22:34:34 2022
ImageMediaBuild: 20220419
ProcEnviron:
SHELL=/bin/bash
LANG=C.UTF-8
TERM=xterm-256color
LC_CTYPE=C.UTF-8
PATH=(custom, no user)
SourcePackage: linux-raspi
UpgradeStatus: No upgrade log present (probably fresh install)
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