Sudden shut down resistant OS

January 19, 2011 at 05:36:25
Specs: Any OS
Hello,

I want to install a computer in my car, and need an OS that is completely resistant to a sudden shut down.
Are there any such Linux or Windows versions?

Thanks,
Dotan Knaan


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#1
January 19, 2011 at 09:38:38
Get a laptop.

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#2
January 19, 2011 at 12:11:08
Thanks for the idea, but I can't use a laptop or a battery. My question was about OS: is there any version of Windows or Linux which is completely resistant to shut down (no system files should be closed, etc.)?

Thanks,
Dotan


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#3
January 19, 2011 at 13:44:34
There are some hardware rules for why a computer shuts down. The only resistant computer I have ever seen was one that dumped the running data to a magnetic core memory. Then one stepped the computer on boot to reload the data. I guess one could do that in today's with some degree of success. Shutdown and reboot are known to bios and modern OS's. Sleep and hibernate are common to save data.

Most embedded systems like windows CE basically are dump resistant to some degree. The flash they run on is never really off.

What exactly do you want to do and protect from?

Why did it take me over a year to phone in a problem to ATT?


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#4
January 19, 2011 at 17:37:38
The OS may be resistant but what about the applications. Any application that modifies files or needs a stored reference is going to start at the beginning. Partially modified files are corrupted. There is no instant shutdown, A graceful exit is needed to do housekeeping, closing files, storing status, updating file structure.

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#5
January 20, 2011 at 05:05:19
Thanks for the detailed answers.
I wrote an application that should run in a car. I use a mini-PC that is connected to the car's lighter. I can't afford a battery, and can't ask the driver to shuts down the computer. Therefore, I need an environment which is stable and resistant to a sudden shut down.
My application doesn't change any file, so I can assume that it will be resistant. Therefore, my main concern is the OS.

Any advice and suggestion is welcome.

Thanks


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#6
January 20, 2011 at 13:18:19
File systems may be a solution. A fully journal-ed system may work to some degree.


No x86 computer is designed to be powered off. I think I remember power loss was a pri 1 class 1 interrupt. You can't do anything else after that calls out.

They make very small dc ups's too.

Why did it take me over a year to phone in a problem to ATT?


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#7
January 22, 2011 at 05:16:47
Thanks

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