#!/bin/sh
#
# Preferred format:
# root=nfs[4]:[server:]path[:options]
# [root=*] netroot=nfs[4]:[server:]path[:options]
Harald and I agree that there is no reason for this second variation to
exist in the case of NFS. It seems the separate root= and netroot= only
makes sense for remote block device protocols like iscsi or nbd.
#
# Legacy formats:
#
# root=/dev/nfs nfsroot=[server:]path[,options]
#
# XXX: All of the following have no reason to exist.
# [net]root=[[/dev/]nfs[4]] nfsroot=[server:]path[,options]
# [net]root=[[/dev/]nfs[4]] nfsroot=[server:]path[:options]
#
I'm removing the three variations of the Legacy nfsroot.txt as discussed.
# If the 'nfsroot' parameter is not given on the command line or is empty,
# the dhcp root-path is used as [server:]path[:options] or the default
This comment doesn't seem to be true.
# "/tftpboot/%s" will be used.
This part about /tftpboot/ and the accompanying implementation in
95nfs/nfsroot seems baffling.
* In what cases does hostname lookup actually work here?
* Where does this precedent come from? This seems to be a really narrow
implementation from some specific past software with hard-coded assumptions.
* For example /tftpboot isn't used by default configurations of tftp
servers on modern Debian, Ubuntu or Fedora anymore. They've moved to
FHS-compliant /var/lib/tftpboot. But then again nothing demands that
the sysadmin sticks with any particular path for the tftp server.
* What does tftpboot have to do with initrd? The initrd doesn't have
anything to do with tftp at this stage.
#
# If server is unspecified it will be pulled from one of the following
# sources, in order:
# static ip= option on kernel command line
Huh? How would you do that?
# DHCP next-server option
# DHCP server-id option
# DHCP root-path option
Do we really want this order? It seems we want this order:
* root=
* DHCP root-path
* Everything else
#
# NFSv4 is only used if explicitly requested; default is NFSv2 or NFSv3
# depending on kernel configuration
#
# root= takes precedence over netroot= if root=nfs[...]
#
This precedence order shouldn't be necessary as netroot= shouldn't be
necessary for NFS.
For now removing only the nfsroot.txt Legacy variations as the netroot=
variations are too ingrained in the code.
Warren Togami
wtogami@xxxxxxxxxx
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