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I recently watched a movie in an empty theater. When the credits started rolling, I wandered to the projection room and asked the operator if there was an after-credit scene. He was using a server that looks almost like rack servers one sees in datacenters with hot swappable HDD. It was called DCP 2000 and had a screen with a Windows-like operating system.

Going online, I didn't find much information since the manufacturing company was absorbed by Dolby. So what's the operating system and by extension the file system used?

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    Servers usually use various Linux distributions, perhaps Ubuntu's most popular. The file system would be likely ext4.
    – Mithoron
    Sep 30 at 14:13
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    ‘Windows-like’. Almost all desktop environments are ‘Windows-like’. macOS and it’s ancestors (and clones) are really the only major exception to this unless you count single-purpose kiosk systems or decide that having a different panel (task bar) layout makes it not ‘Windows-like’.
    – Austin Hemmelgarn
    Oct 1 at 2:02
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    re "I've recently watched a movie in an empty theater ..." --> Schroedingers patron :-).
    – Russell McMahon
    Oct 2 at 0:12

1 Answer 1

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As of August 2014, the most recently mentioned supported Operating System for the DCP-2000 is Linux.

"Debian 4.0" and "Linux kernel 2.6.22.6" are mentioned in various documents relating to the 2000 series projector. Other projectors in the same stable use more recent versions of "Red Hat Enterprise Linux" (RHEL).

This release installs a new Linux kernel. This kernel supports PCIe hot plug event ONLY on units fitted with SuperMicro motherboard (with the latest DCP-2000 operating system - Debian 4.0).

Software Release Notes

and

9.7.3 Known Issues: There is no known issue referenced at this time.

9.7.4 System Changes: Upgrade to Linux kernel 2.6.22.6.

9.7.5 Compatibility Notes: The release is fully compatible with other 0.5.2-x releases.

DCP-2000 / Software Release Notes

The front-end system you were looking at was probably a custom User Interface developed for that projector called Doremi WebGUI / or Doremi ShowVault

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  • Thanks for the answer. Unfortunately the release note links don't work for me. I wonder how accurate the Debian 4.0 is ... since that is from 2007. It's not inconceivable that a nearly 20 year old release is still the basis for a device OS, but it is surprising.
    – iandotkelly ♦
    Sep 30 at 11:59
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    @iandotkelly - I'm just trying to track down the current release notes. Like a lot of manuals, they don't seem to be for public consumption, but I think we can be reasonably assured that the answer is still some flavour of Linux.
    – Valorum
    Sep 30 at 12:03
  • For sure, and Debian represents a huge family of Linux distributions.
    – iandotkelly ♦
    Sep 30 at 13:27
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    @iandotkelly For the type of device involved, Debian 4.x is not that strange or surprising. The systems in question are low-value for anything but DoS attacks, likely don’t have internet access, and may not even be networked. That’s about as low priority to upgrade as you can find as long as everything is working.
    – Austin Hemmelgarn
    Oct 1 at 2:05
  • @AustinHemmelgarn ... also when I look for the model, I can see youtube video's from 2010 about it.
    – iandotkelly ♦
    Oct 1 at 3:10

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