Hi, I have recently found about Qubes OS that is a Linux distribution based around the Xen hypervisor. However, I'm not sure if it supports anything like plausible deniability file system. I mean, I would like to install security-focused operating system from which I can launch different virtual machines with other operating systems, preferably one of them hidden (so that its existence cannot be proved). If that's not possible, at least using hidden containers that can be separated from other processes (through sandboxing in Qubes) should be possible but hidden OS would be better.

Is it possible with Qubes OS or would you suggest some other solution?

It is also possible for me to install any Linux distribution with True Crypt and some containers, including hidden ones with operating system to be virtualized. But I guess using hidden True Crypt container with OS is not the best possible choice. What would you suggest?

Hi, format is the default one for outter volumes that do not require > 4gb file, i.e. fat32. Well, by partition i am setting this up on I guess you mean partition that is visible directly from operating system, right? Unfortunately this is not much bigger than 550 gb, i have lelf some space available but it is less that size of my outter volume. I did not see anywhere in the wizard or tutorial information that i need to leave more space available on system partition (outside outter volume) than outter volume itself.

I could not find information about the steps that true crypt takes to create this outter and then hidden volume. Does it mean it needs at least as much space on system partition as big the outter volume is? If yes, it looks like the only way to create my hidden volume is to create it again, but smaller, so that i have at least, let's say 350 gb empty after outter volume creation if my system partition is 700 gb? The error message in true crypt was not quite descriptive about the exact reason.

PS By system partition I mean what is visible from operating system, even without tc (e.g. 700 gb). By outter partition i mean size of the file on system partition, which can be mounted by password that can be given if requested (e.g. 650 gb with 100 gb with data - it means appending something above100 gb would overwrite hidden partition). By hidden partition i mean what is available by mouting that big file with more secure password (of size 650 gb - 100 gb = 550 gb).