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I have a USB thumb drive containing a live boot environment.

It's actually set up like a HDD with a single ext2 partition within and boots a minimal customized version of linux.

How would I go about setting this up to boot via PXE (or iPXE)

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up vote 0 down vote accepted

If you've got a functioning PXE server, you should have no problem using memdisk with an image of the drive. I've used memdisk to boot a hybrid ISO over PXE, serving the ISO over TFTP rather than NFS.

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Thanks, this is the right answer. Now to get around the 32MB file size limit in freenas! – Matt Mar 29 '12 at 3:03

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