[syslinux:pathbased] docs: explain the danger of IPAPPEND 1

syslinux-bot for Ferenc Wagner wferi at niif.hu
Mon Jun 7 15:04:02 PDT 2010


Commit-ID:  ca77b78e7611cd21ea7b8b6ffdc0074f0f17a295
Gitweb:     http://syslinux.zytor.com/commit/ca77b78e7611cd21ea7b8b6ffdc0074f0f17a295
Author:     Ferenc Wagner <wferi at niif.hu>
AuthorDate: Mon, 31 May 2010 18:53:20 +0200
Committer:  H. Peter Anvin <hpa at linux.intel.com>
CommitDate: Mon, 7 Jun 2010 14:53:30 -0700

docs: explain the danger of IPAPPEND 1

Explain what the actual issue with IPAPPEND 1 is, and what the
constraints on using it really are.

Signed-off-by: Ferenc Wagner <wferi at niif.hu>
Signed-off-by: H. Peter Anvin <hpa at linux.intel.com>


---
 doc/syslinux.txt |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/doc/syslinux.txt b/doc/syslinux.txt
index 76cae24..5a93b90 100644
--- a/doc/syslinux.txt
+++ b/doc/syslinux.txt
@@ -163,11 +163,10 @@ IPAPPEND flag_val			[PXELINUX only]
 
 	... based on the input from the DHCP/BOOTP or PXE boot server.
 
-	THE USE OF THIS OPTION IS NOT RECOMMENDED.  If you have to use
-	it, it is probably an indication that your network configuration
-	is broken.  Using just "ip=dhcp" on the kernel command line
-	is a preferrable option, or, better yet, run dhcpcd/dhclient,
-	from an initrd if necessary.
+	NOTE: The use of this option is no substitute for running a
+	DHCP client in the booted system.  Without regular renewals,
+	the lease acquired by the PXE BIOS will expire, making the
+	IP address available for reuse by the DHCP server.
 
 	2: indicates that an option of the following format
 	should be generated and added to the kernel command line:



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