[syslinux] PXE max boot image size?

H. Peter Anvin hpa at zytor.com
Wed Mar 20 14:54:15 PST 2002

Trey.Harris at morganstanley.com wrote:
> Sorry if this is a FAQ, but what is the upper bound on the size of a
> PXELINUX boot image, both via the kernel/initrd method and the memdisk
> method?  Is it the size of the initrd on the server (i.e., gzipped) that
> matters or the size after uncompressing it?

PXELINUX doesn't limit the size of an initrd or memdisk; in practice, they
need to fit into memory uncompressed.  If you're using a Linux kernel,
it needs to specifically fit into the "kernel" part of the memory space, which
is usually just under 1 GB.


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