Bug 175671

Summary:	BOOTP_NFSROOT option is effectively "always on"
Product:	Base System	Reporter:	Ian Lepore <ian>
Component:	kern	Assignee:	freebsd-bugs (Nobody) <bugs>
Status:	Closed FIXED
Severity:	Affects Only Me
Priority:	Normal
Version:	10.0-CURRENT
Hardware:	Any
OS:	Any

Description Ian Lepore freebsd_committer

2013-01-29 12:50:00 UTC

When the BOOTP option is included in the kernel config, the system will not
boot unless the server provides a root path.  The presence or absence of
the BOOTP_NFSROOT and ROOTDEVNAME= options has no effect on this behavior.

It should be possible to specify BOOTP and ROOTDEVNAME without BOOTP_NFSROOT
so that the kernel obtains IP-related information from the server and then 
mounts root from the path specified with ROOTDEVNAME.  It may be reasonable 
and useful to use any server-provided path as a fallback if ROOTDEVNAME 
doesn't work (i.e., store the server-provided name in rootdevnames[1]).

Comment 1 Ian Lepore freebsd_committer

2016-01-02 03:54:01 UTC

This was fixed in July 2013 with r253847, but I apparently forgot to cite the PR in the commit message.