ipxe boot iso files and load as virtual cd drive

[adeazevedo]

hi there.
I have been reading many topics and forums and I am stuck .
I am trying to ipxe boot an iso file. But I need the iso file to load as a cd drive on the machine .
I have a fog project machine setup and I tried the following setup
sanboot --no-describe --drive 0x80 http://xxx.iso
-----------------------------------
initrd http://192.168.7.21/fog/isoimg/trx.iso
chain memdisk ||

even

initrd http://192.168.7.21/fog/isoimg/trx.iso
chain memdisk iso raw ||

it boots ok but the iso check for files on a cd drive during the boot up and it can’t find any so it hangs. I have a usb boot key tool that I use to load different iso
Windows-linux,nas4free, etc
I would like to move that to a pxe platform .
I would like to avoid decompressing iso files. When new builds come out I would like to only replace the iso file.

Any suggestions ?