USB is an acronym for Universal Serial Bus. The current USB standard is USB 3.0, which supports transfer speeds of up to 625MB/s. USB devices are plug-and-play.

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“dd: /dev/disk4: Permission denied” error when making LiveUSB on Mac OS X

I'm going through the steps: "How to create a bootable USB stick on OS X" to install Ubuntu on a USB stick, and I keep getting the error: dd: /dev/disk4: Permission denied when I try to run step 8. ...
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2answers
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Can I disconnect an ejected drive even if it is still spinning?

I am running Ubuntu 12.04. When I unmount (eject) USB disk, the power LED is always "ON" & I can feel disk is still spinning after 10 Minutes. This means disk is not unmounted from system? is it ...
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4answers
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Printer sometimes doesn't print

I installed 12.04LTS and have a DeskJet 1125C connected through USB. The problem: Sometimes it does not print - in print jobs is status Pending/Processing but print does not start. I discovered if I ...
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1answer
700 views

Leapfrog Crammer won't mount as a USB flash drive

I can't seem to get the Leapfrog Crammer study and sound system to show up as a flash drive under ubuntu so I can transfer stuff to it. I don't want to install the leapfrog bloatware, can someone ...
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5answers
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FULL install Ubuntu on 4GB USB drive

Is there a way to full install Ubuntu 11.04 in a 4gb USB drive? It says that I need at least a 4.6 GB drive. I want the full install, not the live persistent installation. I think that it don't need ...
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2answers
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Nexus 4 not detected as USB device with OTA update 4.3

I have submitted a question on the Google Mobile forum, but not had any responses yet. I am fairly certain that my issues with USB connectivity started when I allowed the 4.3 OTA update to install on ...
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2answers
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Accidently installed grub to usb

While doing a fresh ubuntu install (dual boot with XP using resize), I somehow managed to install grub to the source usb instead of to the harddrive. Normal harddrive boot goes straight to XP. Booting ...
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1answer
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How do I configure a displaylink USB monitor?

I have seen many pieces but not a comprehensive guide to fix what must be a very common problem, particularly in Ubuntu 11.10 where there is no xorg.conf file. Is there an easy how-to somewhere (for ...
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2answers
522 views

Modification on USB bootable drive

A USB bootable drive discards all modifications made at shutdown. Is there a way to save it? If possible, how will that affect a version installed on to a different hard disk using that USB drive?
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1answer
919 views

USB tethered connection via Nexus One not showing on NetworkManager

When plugging my Nexus One (Android 2.3.3) via USB and activating the "USB Tethering" option, I cannot enable the connection via Network Manager, because I just see a gray "Disconnected" option. If I ...
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2answers
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USB drive Login token system?

Is it possible to have a USB drive function as a login token? IE: I turn on my computer, plug the USB drive into my system and the system recognises it and logs me in? Likewise, logs me out should ...
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1answer
14k views

Booting from USB inside VMware Workstation

I'm attempting to install Windows 7 inside a VMware Workstation virtual machine using a bootable USB stick, however the VMware BIOS does not detect the stick, and so I cannot boot from it. The stick ...
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1answer
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How to switch off caching for usb device when writing to it?

I have problems transferring binary programs to a micro-controller prototype board when using ubuntu/kubuntu to mount the board via usb. With MacOS and Windows there are no problems. I have found the ...
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1answer
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14.04 Not Auto-Mounting External Drives Since Upgrading from 12.04

I've upgraded from 12.04 to 14.04 via command-line when my system froze, had to do REISUB and dpkg --configure -a to recover from crash after rebooting. Now everything seems to work except ...
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3answers
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No sound on USB headset. How to manage soundcards and audio devices?

I had a fresh reinstall of Lubuntu 13.10 and my USB headset seems to be not working. I looked for solutions in some forums, but these didn't work for me. My headset is a Genius Wire Gaming headset. ...
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4answers
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How do I create a bootable USB on Ubuntu from Hiren's Boot CD ISO for Windows?

Trying to create a Hiren's BootCD on a USB. Not needing anything else such as a dual boot of Ubuntu and Haren or Window's and Haren. All the programs that I can find to complete this either end up ...
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2answers
1k views

How do I lock/unlock my screen using my iPhone and USB dock?

My iPhone is connected via USB to my Ubuntu desktop via a dock. How do I configure it so that when I dock my phone the screen is unlocked and when removing it it locks it?
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2answers
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How do I make xinput mouse settings persistent for a USB mouse?

I use xinput to change the settings of my USB mouse: xinput set-ptr-feedback 'USB Optical Mouse' 4 1 1 How can I make these settings persistent after unplugging the mouse or rebooting?
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2answers
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Gamepad usb error -71

I have a couple of game-pads with a USB interface, The game-pads are RockFire QF-501UV, When connecting them to the USB port I get the following message: Feb 27 22:32:55 localhost kernel: ...
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1answer
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Virtual USB bus using TCP

I have a router that a printer can be attached to to print wirelessly to. It appears that the software for Windows uses a virtual USB bus using TCP. This allows the printer to appear as if it was ...
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2answers
300 views

USB Speakers are recognised, but can't be selected in sound menu [duplicate]

Possible Duplicate: New Sound Devices Show up in Hardware But not Input or Output I have USB Speakers that used to work with Ubuntu. In 12.10 I can see them through lsusb... Bus 006 Device ...
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2answers
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Is it possible to power up ports on a USB hub from Ubuntu?

I have a D-Link DUB-H7 powered USB 2.0 hub connected to my computer. Occasionally when I reboot the system, I've noticed that some of the ports on the hub get powered down: the green light next to ...
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1answer
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Is Ubuntu Compatible with Bluetooth 4.0?

I recently purchased a Bluetooth 4.0 adaptor for my laptop. Bluetooth 2.1 was recognised instantly, but Bluetooth 4.0 is not recognised. Is there a fix for this, or is Ubuntu not compatible with ...
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1answer
4k views

Send raw data to USB parallel port after upgrading to 11.10

I have a laser cutter connected via a generic USB to parallel adapter. The laser cutter speaks HPGL, as it happens, but since this is a laser cutter and not a plotter, I usually want to generate the ...
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1answer
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How to use gps receiver bu-353

Hi I have a gps receiver bu-353 with usb interface i want to know how can i use it under ubuntu I ran the following command gpsd -n -N -D 2 /dev/ttyUSB0 I got the output as: gpsd: launching ...
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4answers
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USB Microscopes

I'm interested in getting a USB microscope for my kids. So, to get to the point, does anyone know what microscopes are available that work with Ubuntu? Ideally, they should be available in the UK.
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1answer
194 views

Is there a microcontroller kit that ships with development tools for Ubuntu?

I was looking around on the web for an introductory kit with a USB-based microcontroller that I could get started on. However, most of the tools I looked at were Windows-only. Are there any kits ...
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1answer
4k views

“No caching mode page present” when USB flash disk attached

When attaching a USB flash disk (NTFS formatted) to a laptop with Ubuntu Server 12.04 on board, I get following messages: [ 3572.355603] sd 2:0:0:0: [sdb] No Caching mode page present [ 3572.355640] ...
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2answers
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Why does my USB mouse seem to randomly quit working? [duplicate]

While I am doing stuff... doesn't seem to matter what, my USB mouse just stops working... sometimes it will be the keyboard as well but usually not as often. Ubuntu forces me to press my power button ...
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2answers
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Cannot boot from Ubuntu USB [closed]

I create a ubuntu 10.10 bootable USB via the method that is described on the download page of ubuntu. I made that from windows and also from ubuntu 10.04 (I have dual boot). When I boot from the USB ...
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1answer
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USB Keyboard and Mouse both laggy

I decided to try out the Ubuntu 10.10 RC on my workstation today. The install worked fine, but the mouse and keyboard (both of which is usb) are unbearably laggy. This was also the case when I ran it ...
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1answer
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What is the performance difference between booting Ubuntu from a USB v2 and USB v3?

I like the idea of booting from a usb drive. I probably have 50 USB 2.0 drives of various sizes, but I only have 2 USB 3.0 drives currently. If I boot from a USB 3.0, will the increased read/write ...
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How do I turn on wireless adapter on HP Envy dv6 7200 under Ubuntu (any version)?

I have a new HP Envy dv6 7200 with dual boot Windows 8 / Ubuntu 12.04. In windows, the F12 key in Windows activates the "airplane mode" switch which enables/disables both on-board (mini PCIe) and USB ...
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2answers
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USB Keyboard doesn't work server installation 12.10

USB Keyboard doesn't work server installation 12.10. I can get till the language selection screen and later no response to keyboard. Need help.
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1answer
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EHCI_HCD resets interfere with USB transfers

So I have this extremely annoying problem and would love some help. Thanks in advance. First off i'm using a Vaio Z series Laptop, 2.4 GHZ, 4 GB DDR3 RAM. I am on ubuntu 11.04 64-bit at the moment. ...
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1answer
660 views

Can't get my Blue Snowflake Mic to work [closed]

It was working fine when I bought it. I think it was an update or something that made it stop. I don't think the Mic is broken, at least I hope not. Can anyone help? Please? I need it before ...
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7answers
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Why is the error, dd: /dev/rdisk1bs=1m: Operation not supported, popping up while trying to instal ubuntu on usb?

I am trying to install ubuntu onto my flash drive using the instructions from the website, http://www.ubuntu.com/download/help/create-a-usb-stick-on-mac-osx , and after step 8, the terminal asks for ...
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5answers
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How to install Windows XP from Ubuntu via USB

I need to install Windows XP on my machine that currently runs Ubuntu 10.10. I have a slipstreamed ISO for XP and only a USB to boot from. I do not have access to another Windows machine, and my ...
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2answers
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How can I tether my android phone with pdanet to my laptop via usb?

For my iphone I was using this with pdanet to tether via usb. Now I have an android phone, also with pdanet. I'd appreciate any help. Edit My phone is a droid x. I'm using the latest OS officially ...
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3answers
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How to access the SD card through my Sony Ericsson Xperia Arc Phone?

I have a Sony Ericsson Xperia Arc phone and I cannot access its SD card through the USB cable provided. I have set the USB connection mode to MSC yet when I connect the phone to my computer I cannot ...
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4answers
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Ubuntu can't see my Android phone!

I'm on Ubuntu 12.04, and trying to connect my Samsung galaxy Gio (Model # GT-S5660M) with Android 2.3.4 (GINGERBREAD_MR1). When I plug my phone in,via USB, it will charge, however Ubuntu will not ...
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4answers
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Installing Ubuntu on a Windows CE 6.0 EzBook PC (ez-72a)

I recently inherited a cheap EzBook PC and decided it might be fun to throw Ubuntu on it. I have a USB all setup but for the life of me can't get it to boot from USB! I've looked online and can't seem ...
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2answers
172 views

Bootable USB not working for me

I currently have an HP computer that is only a few months old. The computer recently started running super slow and I was going to change from Windows 7 to Ubuntu as I know that Windows has way more ...
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3answers
99 views

Is ubuntu installation binded to the installed-on hardware?

If Ubuntu was installed (full installation) on a USB flash memory, and then tried to boot that flash memory on another PC, will it boot? I am trying to decide whether to use full installation or use ...
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Trim and SSD with usb 3.0 enclosure does not work - UASP not supported?

I have installed one SSD disk (Micron C400-MTFDDAC128MAM) in an external usb 3.0 enclosure. Now I want use this disk as second disk in my laptop with Ubuntu 12.04. Disk is working, but I want to use ...
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1answer
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Unable to make sound play in headset

Top right, I click the sound icon, select sound settings, and connect my USB-headset. I can them see the headset being detected as it pops up in the menu. I click it, and expect the currently played ...
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1answer
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Do barcode scanners work on ubuntu?

I want to buy a barcode scanner to read labels from our products. I don't know if it will work on ubuntu. I have the option to get a CiperLAB 1070. Will it work if plugged in?
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4answers
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Failed to install bootloader

I am trying to install Ubuntu 12.04 by creating a USB Boot Disk. I am using a 500 GB External Hard-drive ("Elements"). I get through the first part of using the start-up disk creator. I select ...
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3answers
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Will VirtualBox recognise a USB device if Ubuntu doesn't recognise

I am running Windows XP as a virtual machine through VirtualBox on Ubuntu 11.10. I have some USB devices (namely a video grabber & Android phone) that aren't recognised by Ubuntu. Will they be ...
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2answers
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How do I disable USB Auto Play?

How does one prevent Nautilus from automatically opening a window when a USB flash drive is inserted in Oneiric? The autoplay options appear to be missing from Nautilus' preferences, and using ...