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connecting R Pi to a usb port on a monitor or projector?

Former Member

We're looking to initially use the Pi as part of our campus emergency notification strategy by having the unit always on and displaying a static message.  We've been able to run the Pi by connecting it to the usb port of several monitors and projectors.  Will regularly powering on and off the monitor/projector will be creating a potential problem for the Pi?

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  • Hello Doug,

     

    Have you tried to make the root partition read-only and mount /var to a seperate partition that get rewriten/extracted at each boot?

     

    What i know of Linux is that the programs does not tend to write in their directory unless there is a configuration change and all the volatile data that keep on changing goes in /proc and /var.

     

    /proc is a directory that get mounted on each boot and it is a virtual link to the internal processes.

    /var contains directories mostly that many programs expect to find to store runtime data like spools.

Reply

  • Hello Doug,

     

    Have you tried to make the root partition read-only and mount /var to a seperate partition that get rewriten/extracted at each boot?

     

    What i know of Linux is that the programs does not tend to write in their directory unless there is a configuration change and all the volatile data that keep on changing goes in /proc and /var.

     

    /proc is a directory that get mounted on each boot and it is a virtual link to the internal processes.

    /var contains directories mostly that many programs expect to find to store runtime data like spools.

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