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authorFerenc Wagner <wferi@niif.hu>2010-05-31 18:53:20 +0200
committerH. Peter Anvin <hpa@linux.intel.com>2010-06-07 14:53:30 -0700
commitca77b78e7611cd21ea7b8b6ffdc0074f0f17a295 (patch)
tree1d435272e92887802ec79712d301512668631986 /doc
parenta3bc7cc0cd20a133a6f11537eb51b0dc252fefc0 (diff)
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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@niif.hu> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'doc')
-rw-r--r--doc/syslinux.txt9
1 files changed, 4 insertions, 5 deletions
diff --git a/doc/syslinux.txt b/doc/syslinux.txt
index 76cae245..5a93b907 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: