[Dnsmasq-discuss] Problem with PXE menu entries number

Simon Kelley simon at thekelleys.org.uk
Wed Oct 10 15:30:38 BST 2012


On 10/10/12 15:09, Lorenzo Milesi wrote:
> Hi.
> I've set up dnsmasq with pxe as follows:
> dhcp-boot=pxelinux.0
> enable-tftp
> tftp-root=/var/tftpboot/
> pxe-prompt="Ricordarsi di usare il proxy http://10.22.22.190:3142 "
> pxe-service=x86PC,"Ubuntu 12.04 LTS amd64",/var/tftpboot/netboot-ubuntu12.04-amd64/pxelinux
> pxe-service=x86PC,"Ubuntu 12.04 LTS i386",/var/tftpboot/netboot-ubuntu12.04-i386/pxelinux
> pxe-service=x86PC,"Ubuntu 12.10 amd64",/var/tftpboot/netboot-ubuntu12.10-amd64/pxelinux
> pxe-service=x86PC,"Ubuntu 10.04 LTS amd64",/var/tftpboot/netboot-ubuntu10.04-amd64/pxelinux
> pxe-service=x86PC,"Ubuntu 10.04 LTS i386",/var/tftpboot/netboot-ubuntu10.04-i386/pxelinux
> 
> The problem is that if I add a sixth rule then the following tftp download will fail.
> Screenshot here: https://dl.dropbox.com/u/706934/failpxe.png
> 
> Is there any limitation on the number of entries can be declared into config? I didn't find any statement on the matter...
> 
> I'm using dnsmasq 2.52 on Ubuntu 10.04.
> 
> thanks
> 

There's a limit on the number of bytes in the data-structure which
describes the menu. If you've hit that limit, dnsmasq should log the
problem. (PXE menu too large). You can use shorter descriptions to try
and fit everything in.

Cheers,

Simon.




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