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soc:2009:pravin:journal:bkostaticip [2009/07/07 04:18] less1 created |
soc:2009:pravin:journal:bkostaticip [2009/07/08 02:42] (current) less1 |
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| ==== Passing information from pxelinux.0 to linux kernel ==== | ==== Passing information from pxelinux.0 to linux kernel ==== | ||
| Linux kernel can take parameter which will have network configuration info. | Linux kernel can take parameter which will have network configuration info. | ||
| - | The unknown factor here is that, if information is with pxelinux.0, and parameters are taken from config file. | + | <code> |
| - | So, I need a way by which configuration file can inform pxelinux.0 to fill in certain places with values it is having. | + | ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf> |
| + | </code> | ||
| + | Refer to [[http://www.mjmwired.net/kernel/Documentation/filesystems/nfsroot.txt|Documentation/filesystems/nfsroot.txt]] for more details on these parameters\\ | ||
| + | The unknown factor here is that, if information is with ''pxelinux.0'', and parameters are taken from config file. | ||
| + | So, I need a way by which configuration file can inform ''pxelinux.0'' to fill in the <client-ip>, <gw-ip>, <netmask> with values it is having.\\ | ||
| + | |||
| + | I would also like to pass on the DNS ip which is not an option above. I may add one more parameter, or reuse <server-ip> as <dns-ip> | ||
| ==== Passing information from gpxe to pxelinux.0 ==== | ==== Passing information from gpxe to pxelinux.0 ==== | ||
| - | I don't have any clue about this part. This part may prove to be tricky | + | I don't have any clue about this part. This part may prove to be tricky. |
| + | Following are the parameters that I need to pass on. | ||
| + | - net0/ip | ||
| + | - net0/netmask | ||
| + | - net0/gateway | ||
| + | - net0/dns | ||
| + | |||
| + | Again, I need to pass the values of these variables, I hope that gpxe is capable of doing this. | ||
| + | ===== Solution ===== | ||
| + | ''IPAPPEND'' worked for me without any problems. Honestly, I do not understand how it works, but I am using ''IPAPPEND 3'' (because I have been told to use this option). | ||
| + | Unfortunately, the documentation related to IPAPPEND is quite hard to find. Any pointers on how exactly IPAPPEND works will be helpful.\\ | ||
| + | Small drawback of this solution is that, the DNS entry is not passed. So, I won't be able to use URL's and I have to stick to IP only. | ||
