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• How to create a Linux USB stick that boots on Mac?

  - by lhahne

  If I try to create a bootable USB stick by using dd to copy an ISO file to it, it usually works on PC but it won't appear in the boot menu of my Macbook. Is there an easy way to generate a bootable USB stick from an ISO file so that it would boot on a Mac?

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• Sprint U300 4G/WiMax USB card - can it be made to work with OS X (Leopard)?

  - by BrianLy

  It seems that Sprint do not provide drivers for this USB adapter. Is there a way to make this work with Apple OS X, so that I can use it with my MacBook Pro? It appears to have USB storage and this is all that works for me.

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• What changes should I make to an Ubuntu that runs from a USB flash drive?

  - by Georg

  I'm considering running my laptop from a USB flash drive. The system would be one of the Ubuntu family. What should I do to ensure that the USB flash drive lasts as long as possible? What can I do to improve system performance?

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• Is it possible to install Ubuntu Server 10.04 *from* a USB drive?

  - by MousePad

  I've tried the Universal USB Installer from PenDrive, and put 10.04 Ubuntu Server on it. But when I boot up and try to install, it looks for a Ubuntu CD ROM, which I do not have. I thought the whole point is to be able to install from a USB, which seems easy with the Desktop version. Why is the server version not allowing me to do this? Am I missing something?

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• Use an audio/video file from a Linux laptop via USB to be played by Magic Sing ET-23H

  - by AisIceEyes

  I am one of the technical directors of a regular karaoke contest event. For the karaoke contest itself, due to tight budget, we are using what one of the sponsors are providing - Magic Sing ET-23H . The video output of the Magic Sing ET-23H are broadcasted at two big screens that are being shown to the audience and event attendees. When a karaoke contestant provides his / her karaoke video, the video itself is in a readable USB flashdrive and is attached to the USB input of Magic Sing ET-23H. What really bugs me is that the interface of Magic Sing ET-23H are also being broadcasted at the big screen video feeds. The interface of choosing the video file is being seen in the Magic Sing ET-23H - also to the big video screens that are seen by the audience and event goers. I will post in the comments ( if my less than 10 reputation would allow me) the picture of Magic Sing ET-23KH USB input of the device. I always bring my laptop, Acer AS5742-7653, during the regular karaoke event. I'm using my laptop also for tallying of scores from the judges, and also playing audio files from contestants that did not provide a karaoke video. I personally am using different Linux distros, but I next to all the time use my Ubuntu Studio 12.04.3 64bit partition during the regular karaoke contest event. My question is this: Is there a way I can share a temporary video/audio file directly from the laptop I'm using, going to the Magic Sing ET-23H that can broadcast both the video/audio file? Just like how in Window's Avisynth AVS files, or VirtualDub's temporary avi file, or like using ffplay (of ffmpeg), etc. I have researched somewhat the matter and found links in SuperUser.com. Though I can only provide the links at the comments section of this post if my reputation of less than 10 would allow me. I have a hunch it is possible, but I have not fully understood the device being used at the event, Magic Sing ET-23H, if there are other ways for it to broadcast video and audio files besides its USB input. Any help to my current predicament is highly appreciated. Thank you. PS: Since I need at least 10 reputation to post more than 2 links and also post images, I will try to post the image & links at the comments (if my below 10 reputation would allow me).

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• How to "burn" ISO/img/cue+bin to USB drive?

  - by Pyrolistical

  I don't get it. Why is it so complicated to create a bootable usb from a disc image? Disc images have boot sectors, so why can't you just write the raw LBA values from an image directly to a USB and be done? I haven't see any tool for Windows that lets me do this.

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• How to boot a Linux live USB on a Mac?

  - by nambuls

  I have a USB stick with a Fedora 11 live environment on it. It's booting fine on 3 PCs where I've tried it. But I can't get it to boot on a Mac (Intel). When pressing the alt key (or command key, I don't remember which one) during startup I can only choose the "Macintosh HD" and the USB stick doesn't appear.

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• Can anyone recommend a USB to DVI adaptor which runs well under Windows 7?

  - by dbruning

  Wanting to connect a third monitor to my aging Dell D830 laptop. It has 2 monitor outputs (VGA + DVI), and I'd like to add a third via USB This is the sort of thing I'm looking for ("ST Lab U-480 USB to DVI Adapter: http://www.ascent.co.nz/productspecification.aspx?ItemID=381944 ... but it doesn't explicitly support Windows 7 & the manufacturer's site doesn't show any driver updates. TIA

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• wireless usb hub with the hub on the computer side - does this exist?

  - by Mala

  Hi I'm looking for what is effectively a wireless usb hub, but where the "hubbing" part takes place on the computer-side. In other words, something like this: http://www.iogear.com/product/GUWH104KIT/ Except rather than all four "terminating" slots being connected, having 4 small "wireless terminals" so that the devices can be placed all over a room instead of all within reach of the wireless usb hub Does such a product exist? Thanks!

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• Can I use any USB hub with an XBOX360 and Rockband controllers? [closed]

  - by Jeff Yates

  I've seen USB hubs specifically created for RockBand. Are they required or is this just marketing? Will any old USB hub work? My gut says yes, but my wallet says ask someone else.

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• How many megabytes per second may I expect from a gigabit USB 2.0 network card under linux?

  - by Nakedible

  I'm interested in the actual real-word throughput attainable with an external 1000BaseT USB 2.0 network card under Linux. I have been able to attain 90 megabytes per second on a PCI-E interface, but the USB 2.0 bus has a theoretical limit of 480Mbit/s, and in practice less than 40 megabytes per second. Is the actual throughput attainable with such a card under linux 40, 30, 20, or even as low as 10 megabytes per second, eg. no better than a normal 100BaseT network card?

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• Toggle-able USB hub with more than one input and output?

  - by user74757

  I recently came across this product: http://ppa-usa.com/shared-network-hub-4-port-usb.html The only problem is, this is nearly opposite of what I need. Ideally, I'm looking for a USB hub-like device that can accept at least two devices for input, and toggle those two devices between at least 2 PC's. The hub linked above appears to be only able to accept one device. Does anyone know of such a product?

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• How to use USB Key in Xen 5.6 Environment?

  - by Az

  I am looking for a way to use USB key on a guest OS running on a 5.6 Xen Server environment. The catch is that I need to actually detect in the Guest OS (Win2003 Server) like an actual USB Key. Attaching it as a storage drive doesnt work (It is a key with special attributes that servers as a licensing mechanism). Just wondering if anyone has had a similar need and found a good solution? Thanks, Nate

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• why do USB devices often ship with a driver CD, wouldn't it make more sense to ship them on the same

  - by Tom

  I bought a USB to ethernet network adapter, and the drivers came on a disk... I was wondering why they didn't include a USB stick in the adapter, as they seem pretty cheap, and I have already lost the disk ;-)

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• Will any USB DVD reader work with Apple Mac's?

  - by Kev

  Following on from this question: Can Apple Macintosh computers boot from a USB volume? Can I use any USB 2.0 DVD drive to boot a Mac from? I had a look around my local PC World today and only the more expensive drives explicitly state on the packaging that they were Mac compatible. Is this just because these products have been through Apple's hardware approval/testing programme, or do Mac's have some special requirement?

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• what is the fastest way to copy all data to a new larger hard drive?

  - by SUPER user

  I was certain this would have been covered before, but I cannot find an answer amongst all the almost-duplicates that come up; sorry if I've missed something obvious. I have a full 320gb disk inside my machine, a new 1tb disk to replace it, and a USB 2.0 chassis. It is only data on a single partition, no OS/apps involved, and the old drive will be kept somewhere as backup (no secure wiping etc). The simple option would be to put new disk in USB chassis, copy files, then swap them over. But for USB pen drives, reading is around 4x faster than writing. If the same is true for a USB SATA chassis (is it?) then it would be significantly faster to swap the drives first and read from the old drive over USB, right? Then the other consideration is that copying lots of files is usually slower than a single file of equivalent size. Is Windows 7 smart enough to do everything in a single lump like that, or is there specialised software that should be used instead? (Even if SATA-SATA copying is faster than involving USB, knowing what to do when it isn't an option is useful information.) Summary: Does a USB SATA chassis suffer from a read/write inequality? (like a USB pen drive does, but unlike a direct SATA connection) Can Windows 7 do sequential access? (I can't find confirmation if Robocopy does this.) Or is it necessary to use a bootable CD/USB with something like Clonezilla to achieve sequential copy speeds?

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• Can Current Backflow from Powered Hub's Adapter & cause PC Damage?

  - by SuperUserMan

  Getting this short: Can current flow from a powered USB hub's power adapter (lying 10 Meter away) back to computer via usb port and cause damage to Computer components like mobo, etc? What should be my concerns? Using a 2 Amp 5V Power adapter to power a 10m Long Active Repeater USB extension cable with 4 port HUB & plugging into PC's Front port, causes PC Chassis fan to keep running (thought slower than regular speed) Front Chassis HDD & power LED to turn on (though bit dim) may be other things which i cant detect/see at chip level, in motherboard?? All this even after PC is shut down (bit scary) More detail (in case still want to read): To run 4 High power (needing 450 mAmps) Wifi Adapters, far away from PC, Bought Active Repeater USB Extension Cable with 4 Ports & power port at far end http://www.ebay.com/itm/33FT-USB-2-0-Male-to-Female-Extension-Cable-Hub-Splitter-Adapter-with-4-USB-Port-/390846115254 Then added a locally bought 2 Amp 240V AC to 5V DC Power Adapter and plugged into USB hub which is a part of & situated at far end of a 10 Meter Active Repeater usb extension cable. Even 4 Wifi Adapters run fine (appear to) using this setup, but running chassis fan, dimly lighted Power & HDD LED, even when PC is switched off is bit scary and surely mean 5V & some current is flowing all though that 10 meter extension cable into my USB port & powering stuff. Can this cause damage? and what should be my concerns. Of course I can't switch off the power adapter (lying 10 meters away from PC) every time I switch off my PC to prevent this.

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• Serial connection over a single USB cable (Windows to linux, or linux to linux)

  - by andyortlieb

  I'm helping out with a project for an embedded device that only has USB and no serial. This device is running Linux. These days, when we need to connect to a serial port on a device we typically use a USB to serial adapter (on something like a phone system or a load balancing device, etc). I would like to know if it is possible to have the host device behave as though it were a serial adapter, thus removing the need for one. Given the nature of USB, is this approach even necessary? To recap, I would like to be able to connect a single A-to-A USB cable from my workstation (be it windows or linux) to this device, for the purpose of administration (especially initial setup), using minicom, putty or hyperterminal. Thanks

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• Grub rescue: unknown filesystem erro while booting from USB

  - by Dilip Kumar

  I'm currently using ubuntu 12.04 which has grub2 and wanted to install windows 8 from my USB, i also created a bootable usb flash drive using windows 7 dvd download tool, the problem is - I formatted my hard drive and whenever i try to boot from the flash drive i get an error "error: unknown filesystem" and gives grub rescue prompt, since my dvd drive is not working the only way for me to install win8 is from USB,can anybody help me with this?

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• Using portable Mode for true crypt for crypting Portable HDD , USB etc

  - by Gaurav_Java

  I was wondering how to encrypt my external HDD so that my data would be safe AND accessible from any OS platform (Windows and Linux). So I went through many posts and forums and found out the best thing was to use true crypt. I went along with this post and encrypt my USB drive. When inserted that, Windows didn't recognize it. Then I followed another post that said to install truecrypt. The thing is : How can i use traveler disk setup in Ubuntu (Option not found)? Install truecrypt in USB so that i can *mount my USB or HDD on any other OS? If there is no solution for the upper two, then is there any other software which I can use to encrypt an USB device so that it can be accessed from any OS?

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• Recover files in Ubuntu from USB stick

  - by Jon

  I have Ubuntu 11.04 running from a USB stick. I think I ran some updates in terminal and now it has a kernel panic during boot up. Is there a way I can get hold of files I saved when Ubuntu was working? I just managed to watch the booot screen and it looks as if there are some errors saying there is no room to write to disk however my USB stick has 5GB free UPDATE: Here is what I see when I plug the USB stick into Windows

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• Intel intègrera l'USB 3.0 dans Windows 8 et espère aider l'adoption de masse de cette technologie

  Mise à jour du 09.03.2010 par Katleen Intel intègrera l'USB 3.0 dans Windows 8 et espère aider l'adoption de masse de cette technologie Une information importante vient d'être révèlée à propos du futur système d'exploitation de Microsoft. En effet, Intel a annoncé hier que l'USB 3.0 sera embarqué dans Windows 8. Alors que les technologies qui seront utilisées dans deux ans sont encore inconnues, que penser de cette fonctionnalité ? L'USB 3.0, qui a été présenté pour la première fois au public le 18 septembre 2007 lors de l'Intel Developer Forum, apporte un bus capable de transferts ultra-rapides à hauteur de 4 Gbit/s Pour rappel, l'USB 2.0 plafonne à 480 Mbits/s. ...

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• Numpad doesn't work after booting up - forced to reconnect USB keyboard after startup

  - by HorusKol

  I've tried this on two different USB keyboards - both of which work fine on a different computer running Windows XP. For some reason, the numerical keypad doesn't work probably immediately after booting up - neither the numbers work, nor the 'home' commands and so on that you can use with the numlock off. It doesn't make a difference whether I press numlock on or off - the keypad doesn't work correctly no matter what state this is in. However, once I've booted the machine I can disconnect/reconnect the USB connector for the keyboard, and it will work exactly as expected. I'm running Gnome on Ubuntu 10.04. The only other USB devices connected is a mouse - and I've experienced no problems with that. This is a direct connection to the box (not via an external USB hub)

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• Problem in installing Ubuntu 12 using USB

  - by Hitesh Bhatt

  I have a Sony laptop (VPCEH25EN) and i am trying to install Ubuntu 12.04 LTS. I downloaded the iso named "ubuntu-12.04-desktop-amd64.iso". For installing i created a bootable USB using UltraISO. When i booted the USB it hangs and shows " Booting from USB ", I even left it for hours and it didn't moved a bit. When I booted the ISO in Virtual Box, it ran well. I even used other tools to make a bootable USB, then it says " BOOTMNGR missing ". Please help, I am new to Ubuntu and my optical drive is fried. Thanks in advance..

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• USB-live does not save files between sessions

  - by Mads Skjern

  I created a USB-stick with Ubuntu, using the recommended tool "Startup Disk Creator" and the image for Ubuntu 13.10. The very simple interface looks like this: There can't be much to misunderstand in this GUI. I have chosen to create a USB stick with a live version of Ubuntu, which will save files and settings from session to session, on the USB drive, right? Well, it just doesn't save anything. I go in, create a file on Desktop, restart and it's gone. I did the whole procedure three times, i.e. first creating the USB, then testing if I could save. Have I misunderstood something?

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