GeneralThis forum is for non-technical general discussion which can include both Linux and non-Linux topics. Have fun!
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
I read some customer reviews of aftermarket USB hubs and saw one say, in listing pros and cons, that the ports on the hub in question had no on/off switches. Can USB ports be switched off, or did the reviewer not know what he/she was talking about? I've never used USB hubs other than what my case and motherboard provide, and none of their ports have had off switches. It might be useful in some situations--if you had a device plugged into a port and didn't want to unplug it (probably a flash drive) but wanted the computer to completely ignore it for the time being.
Nice. Before I knew hubs could have switches, I wanted one in the form of a cable; but I'd consider this one.
And how would a Linux operating system respond if a USB storage medium were switched off and then on later? If you switched it off, would it disappear from the system as though no device was plugged into the port? If so, and if it reappeared after being switched back on, would it have the same location (I mean /dev/sda1) as before?
Last edited by newbiesforever; 09-06-2013 at 02:31 PM.
Switching the device off will have the same effect as unplugging the device. If a storage device appears in the same place is not predictable, sometimes even unplugging and plugging in again in a short amount of time will cause a device to appear in a different place.
If its hard to get to your hub to unplug devices, its going to be just as hard to get access so you can turn off a switch.......
Well, it depends on the location; it's possible to be able to barely reach a button while not being able to reach the plugged-in device (or being able to reach said device, but not easily enough for you to grip the device and unplug it).
That said, a USB hub that could have ports switched on/off remotely (maybe using a separate USB device integrated in the hub?) would be cool.