usb-drive | 易学教程

Run script with udev after USB plugged in on RPi

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问题 I am trying to run a script from a udev rule after any USB drive has been plugged in. When I run the script manually, after the USB is mounted normally, it will run fine. The script calls a python program to run and the python program uses a file on the USB drive. No issues there. If I make the script to simply log the date in a file, that works just fine. So I know my UDEV rule and my script work fine, each on their own. The issue seems to come up when udev calls the script, then script

Batch list usb drives, then copy content

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问题 I'm trying to make a batch file that list usb drive (it's usually one connected), then either cd in to the drive or copy the contents from the drive. I'm trying to to use wmic to list the drive, and I get the drive letter. But I have no idea how to execute the cd command using the information I got from wmic. wmic command: wmic volume where "drivetype=2" get driveletter /format:table | findstr : 回答1: Why not use Powershell to list the disks then filter for USB drives and go from there?

Portable Ruby on Rails environment for Windows

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问题 Somenone asked the same question about two years ago. The answer was InstantRails at that time. But InstantRails seems to be out of date. Are there any other solutions? 回答1: Bitnami offers both native and virtual stacks for popular platforms, you might check these out. 回答2: I just heard about an Instant Rails VM that Engineyard made using Vagrant-- it's an Ubuntu virtual box with rails all set up and ready to go. I haven't tried it yet though. As much as I wish Rails ran better on Windows,

How to find USB storage path programmatically?

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问题 I connected USB storage to my phone and I used getExternalFilesDirs(""); to find all directories including sdcard and USB. The path of sdcard comes out correctly, but USB path does not come out by the function. Is there anyway to find relative path of USB instead of absolute path? I've been stuck at this problem for few weeks, but got nothing. 回答1: Due to Android permissions you may not be able to do this, but here's the recommendation anyways. Try to read the contents of /proc/mounts and

how to get access after hide the drive with Diskpart Command-Line Utility

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问题 I want to hide the drive from user with Diskpart Command-Line Utility . I use remove letter command and the drive becomes hidden . But I want to use the data of that drive for example in my program written in C . How I can do this or is it possible ? I want to do this only for usb flash drives . If it is not possible please give me another approach to do this correctly ? Thanks a lot , good luck . 回答1: You can use the volume GUID like this: \\?\Volume{2a0b16cf-f76a-11df-9310-806e6f6e6963}

Android Things filesystem

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I am building this app on android things. I want to be able to give it access to media files on a USB stick or maybe even the raspberry pi's SDcard. I don't know what I'll have it do with those files yet but I just wanna know if its possible. If it isn't that's fine I have other solutions but I figured I would start with the obvious approach first. I'm didn't try it, but seems it's possible by the same way as in normal Android OS. To do this You should mount Your USB dongle into the filesystem somewhere e.g. in new folder /mnt/usb like in this answer of Onik or that project of Keval Patel :

Portable Ruby on Rails environment for Windows

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Somenone asked the same question about two years ago. The answer was InstantRails at that time. But InstantRails seems to be out of date. Are there any other solutions? Bitnami offers both native and virtual stacks for popular platforms, you might check these out. I just heard about an Instant Rails VM that Engineyard made using Vagrant -- it's an Ubuntu virtual box with rails all set up and ready to go. I haven't tried it yet though. As much as I wish Rails ran better on Windows, giving up and using an Ubuntu VM may be the best thing for your purposes-- it would be very self contained. This

Work with Subversion from USB Key

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I am taking some work home with me these days and I transport it on a USB key because my work is on a private intranet. I am using Visual Studio 2008 and I find that the performance of builds is degraded by working off the the key. My initial thought to improve performance is to use Robocopy to mirror the directory locally and then when I'm ready to take stuff back to work I just use Robocopy again to mirror the working folder from the hard drive onto the USB Key. So, my roundtrip looks like this USB -> Hard Drive -> USB Does anyone see any potential issues with that? I guess I'm worried about

Detecting USB Connection — C# .Net CF 3.5

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问题 I have an application (.Net Compact Framework 3.5) running on a Windows Mobile 6.1 device and I want to detect when the USB connection changes (either something connects or disconnects). I was originally using the SystemProperty.CradlePresent property to trigger an event but I am wondering if this only works if the device connecting has ActiveSync? I will be receiving a connection via USB from a Linux device that does not have ActiveSync running on it. Can I still use SystemProperty

How to find USB storage path programmatically?

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I connected USB storage to my phone and I used getExternalFilesDirs(""); to find all directories including sdcard and USB. The path of sdcard comes out correctly, but USB path does not come out by the function. Is there anyway to find relative path of USB instead of absolute path? I've been stuck at this problem for few weeks, but got nothing. Due to Android permissions you may not be able to do this, but here's the recommendation anyways. Try to read the contents of /proc/mounts and grep "sda1". It'll show you the mount point of your USB drive. 来源： https://stackoverflow.com/questions/30976189