01-20-2012
I think you can pass kernel options on the PXElinux commandline, like 'kernel option anotheroption'. These would be passed into the kernel commandline of whatever's loaded, and it can decide from there how to deal with it. An initrd would be best so you could embed scripts for it before anything is mounted or what have you.
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LEARN ABOUT CENTOS
gethostip
GETHOSTIP(1) General Commands Manual GETHOSTIP(1)
NAME
gethostip -- convert an IP address into various formats
SYNOPSIS
gethostip [-dxnf] [HOSTNAME|IP]
DESCRIPTION
This manual page documents briefly the gethostip command.
The gethostip utility converts the given hostname or IP address into a variety formats. It is provided by the syslinux package to make it
easier to calculate the appropriate names for pxelinux configuration files. These filenames can be the complete hexadecimal representation
for a given IP address, or a partial hexadecimal representation to match a range of IP addresses.
OPTIONS
A summary of options is included below.
-d Output the IP address in decimal format.
-x Output the IP address in hexadecimal format.
-n Output the host's canonical name.
-f Full output. Outputs the IP address in all supported formats. Same as -xdn.
SEE ALSO
syslinux(1)
More details can be found in the pxelinux documentation, which can be found in /usr/share/doc/syslinux/pxelinux.doc.gz on Debian GNU/Linux
systems.
AUTHOR
This manual page was compiled by dann frazier <dannf@debian.org> for the Debian GNU/Linux system (but may be used by others).
GETHOSTIP(1)