I was interested in build a portable OS with a virtual cd/dvd drive installed on it. Then I would simply copy some virus rescue .iso images that theoretically could be loaded from within the distro onto the virtual cd/dvd drive. That way a large flash drive could hold a collection and load one .iso at a time, without imposing all of them into memory.
When repairing a small old computer, Windows becomes a large footprint and leaves little room for repair iso’s. What I found looks like an impressive tiny Linux distro, Porteus; the emphasis here is on "portable".
http://www.porteus.org/
What blew me away was on this page. You can build it to order! Got one for myself down to 182 MB. I recommend x86 - ALL machines can use it.
http://build.porteus.org/
And here's lots of help and How-To instructions...
http://www.porteus.org/tutorials/37-ins ... -v-10.html
http://www.porteus.org/tutorials/26-gen ... rials.html
A portable Linux build incorporating a virtual DVD drive
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A portable Linux build incorporating a virtual DVD drive

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Re: A portable Linux build incorporating a virtual DVD drive
I'll spin that in a VM
Can't see it not working.

Can't see it not working.

Use Linux And Relax