[syslinux] Could not find kernel image : vmlinuz

[Geert Stappers]

Op 20090806 om 23:01 schreef H. Peter Anvin:
> On 08/06/2009 08:01 PM, Sandeep Agarwal wrote:
> > 
> > also i tired to strace the process, i don't know if i was doing it
> > correctly, but it showed that the file "vmlinuz" was opened but was
> > never read. So I did tried changing the ownership of the TFTP folder
> > (/tftpboot) to nobody and tried but the results where the same.
> > 
> 
> BTW, what does your iptables look like?

This from a previous posting from Sandeep Agarwal:

 49   2.212315 192.168.1.240 -> 192.168.1.1  TFTP Read Request, File: /pxelinux.cfg/C0A, Transfer type: octet
 50   2.219726  192.168.1.1 -> 192.168.1.240 TFTP Option Acknowledgement
 51   2.223174 192.168.1.240 -> 192.168.1.1  TFTP Read Request, File: /pxelinux.cfg/C0, Transfer type: octet
 52   2.230393  192.168.1.1 -> 192.168.1.240 TFTP Option Acknowledgement
 53   2.233918 192.168.1.240 -> 192.168.1.1  TFTP Read Request, File: /pxelinux.cfg/C, Transfer type: octet
 54   2.240970  192.168.1.1 -> 192.168.1.240 TFTP Option Acknowledgement
 55   2.244533 192.168.1.240 -> 192.168.1.1  TFTP Read Request, File: /pxelinux.cfg/default, Transfer type: octet
 56   2.251542  192.168.1.1 -> 192.168.1.240 TFTP Option Acknowledgement
 57   2.251683 192.168.1.240 -> 192.168.1.1  TFTP Acknowledgement, Block: 0
 58   2.251883  192.168.1.1 -> 192.168.1.240 TFTP Data Packet, Block: 1 (last)
 59   2.252030 192.168.1.240 -> 192.168.1.1  TFTP Acknowledgement, Block: 1
 60   3.173123  192.168.1.1 -> 192.168.1.240 TFTP Option Acknowledgement
 61   3.189111  192.168.1.1 -> 192.168.1.240 TFTP Option Acknowledgement
several lines 192.168.1.1 -> 192.168.1.240 TFTP Option Acknowledgement
 82   9.229481  192.168.1.1 -> 192.168.1.240 TFTP Option Acknowledgement
 83   9.241481  192.168.1.1 -> 192.168.1.240 TFTP Option Acknowledgement
 84  12.294066 192.168.1.240 -> 192.168.1.1  TFTP Read Request, File: /vmlinuz, Transfer type: octet
 85  12.838913 192.168.1.240 -> 192.168.1.1  TFTP Read Request, File: /vmlinuz, Transfer type: octet
several lines 192.168.1.240 -> 192.168.1.1  TFTP Read Request, File: /vmlinuz, Transfer type: octet
 106 160.851305 192.168.1.240 -> 192.168.1.1  TFTP Read Request, File: /vmlinuz, Transfer type: octet
 107 191.057958 192.168.1.240 -> 192.168.1.1  TFTP Read Request, File: /vmlinuz, Transfer type: octet


If we are solving an iptables issue, then we are dealling with dynamic iptables rules.
(something reconfigs the TFTP port after the transfer of pxelinux.0 and pxelinux.cfg/default )


Cheers
Geert Stappers