Raising the append line char limit by upgrading pxelinux

IIUIC the number of chars appended to the kernel during PXE boot is limited by two things: The kernel itself and the bootloader - pxelinux in my case.

Ancient kernels had a limit of 256 chars, but this limit was raised and doesn’t exist with 2.6 anymore.

What I did not know was that the pxelinux limitation was also raised. Now it is possible to pass up to 2048 chars - I also read 4096 chars somewhere else. At least many more then previously (1024 or so, at least lower).

So updating pxelinux to some recent version will allow you to pass more arguments to the booted kernel. This is especially relevant for igor, when testing Node.

::: {#footer} [ March 4th, 2014 11:46am ]{#timestamp} [fedora]{.tag} [pxe]{.tag} [node]{.tag} [igor]{.tag} :::