Universal Serial Bus, an industry standard for serial communication.

learn more… | top users | synonyms

46
votes
5answers
114k views

How to make Windows 7 USB flash install media from Linux?

I have: ISO image of Windows 7 install media 4 GB USB flash drive no DVD drive Linux installed
15
votes
6answers
12k views

Re-mount USB device after removal on Windows

From time to time I eject a USB device, generally a memory stick or external HDD, when I think I have finished transferring data only to realise there's something else I need to do with it. Normally ...
13
votes
3answers
864 views

CentOS /dev/bus/usb structure

On my Ubuntu 12.04 when I plug in usb device, under dev directory tree usb device is added like this: /dev/bus/usb/001/001 On my CentOS 5 added like below: /dev/bus/usb/devices/2-1.4/ lsusb ...
12
votes
4answers
622 views

Hooking up many different external HDs simultaneously

I need a large amount of external storage for an upcoming project. I'm planning on purchasing 10 2TB external drives. I need them all hooked up to a single machine at the same time. What issues ...
10
votes
8answers
4k views

Best file system for external (USB) hard drives/USB memory media

Almost all external USB hard drive and USB memory media/sticks come today preformatted with FAT32. As far as I know the only advantage of the file system is the compatibility among OSes and devices. ...
10
votes
3answers
974 views

Cross platform support for network attached USB hubs?

I am looking at network-attached USB hubs in order to run licensed software in a virtualized environment when hardware dongles are required. Are there any solutions that will work with both Linux and ...
9
votes
5answers
80k views

Can you use a USB hard drive in ESXI?

I know that you can install ESXi 4.0 on a thumbdrive, but I was wondering if you could plug in an external harddrive to give extra storage to one of your VMs? We run a fileserver inside of ESXi that ...
9
votes
1answer
388 views

USB floppy key

Does there exist a USB key that acts like a 1.44MB floppy drive? I know there are USB floppy drives and USB flash drives, but if I can find a floppy key, I can finally get rid of the floppy disks ...
8
votes
7answers
36k views

Can you use a USB dongle inside a VMWare ESX Virual Machine?

I need to know if a USB dongle that is required as a license key for a piece of software will accessible from the physical host machine. This will be a small vSphere 4 installation targeting the ...
8
votes
2answers
1k views

Is it a good idea to back up SQL database to an External USB Hard Drive?

I will be installing a Database System on an Offshore Oil Platform (rack Servers). They have very limited hardware and space therefore sending up a backup infrastructure is not possible. Sending ...
8
votes
4answers
4k views

Use standard USB flash disk as security token

We want our users in company to login their computers by using their USB Flash Disks or something else. Is there a way to achieve this without buying a USB token from a company ?
7
votes
13answers
2k views

Locking Desktop USB Ports

How do you lock out the USB ports on the desktop PCs so we can prevent usage of USB drives on the desktops. I should clarify that these are Windows XP desktops. We should also assume that like most ...
7
votes
7answers
3k views

Which file system to use for portable hard drive shared among different operating systems?

Something similar has been asked already but my criteria is a little different. I need to share a portable hard drive (USB/Firewire) between Mac OSX, Linux and Windows XP systems where the files being ...
7
votes
3answers
3k views

How to remove all previous devices in xp?

On our computers, we use daily dozens of different usb drives from our customers. This is bad because the registry hive is becoming huge as windows is so "smart" to save them forever I set ...
6
votes
4answers
1k views

USB storage media - data integrity issues on linux

I've always been somewhat paranoid about verifying data backed up to removable media, so after copying stuff to a USB flash drive or portable HDD, I invariably unmount the drive, remount it and diff ...
6
votes
5answers
8k views

How to Login to Windows XP/7 Using a USB stick for authentication

Is there a way to log into Windows using a USB stick? (on Windows XP/7) I have student workers whom I would like to give admin rights for maintenance, but I would like to refrain from giving out a ...
6
votes
4answers
415 views

What is a a good serial-to-USB adapter?

Serial ports on devices are still used for many things, especially on network devices. However, most modern laptops no longer have serial (aka "COM") ports. So what I'm curious about is: what is a ...
6
votes
3answers
4k views

Kickstart installation from USB — Kickstart location

After managing to get a Fedora ISO to rebuild successfully (for a USB stick) after adding a kickstart file (http://serverfault.com/questions/548405/), I now have an issue with locating the kickstart ...
5
votes
7answers
4k views

USB drive RAID array

I am trying to contemplate how stupid an idea this would be... I was inspired by some foolish fellow, who soon after the release of Mac OS X 10.0 took 5 USB floppy drives, plugged them into his iMac, ...
5
votes
4answers
7k views

Which /dev/sdX is my usb stick on?

How can I determine which /dev/sdX device my usb stick is plugged into? I am running Ubuntu 9.04.
5
votes
1answer
3k views

How to determine USB Version 1.1 or 2.0

I have got a Ubuntu server 9.10 system with a USB storage attached. It works very, very slow. Is there a command to test whether it's 1.1 or 2.0 usb? How can I find out? Thanks for your help!
5
votes
3answers
1k views

Server System drive on a USB stick? Good? Bad?

This is a follow up to this question. I am assembling a storage server with 14 SATA drives. I don't want to "waste" a drive for the OS system, so I thought I could isntall and run the OS from a USB ...
5
votes
4answers
3k views

How do you specify static mount points for removable usb drives?

I have a bunch of usb ports and hubs. When you attach usb thumb drives, Linux assigns them to virtual block devices on a first-come first-serve basis. It creates sdd, sde, sdf, and so on, regardless ...
5
votes
2answers
1k views

IBM x3650 will not boot from USB

Hello serverfault community, and thank you in advance for your time. Summary: I have an IBM x3650, which I bought secondhand (eBay). I am trying to install and run VMWare ESXi 5.5 on it via a USB ...
5
votes
4answers
3k views

How do you make a WinXP bootable USB drive?

How do you make a WinXP bootable USB drive? I've seen a bunch of instruction here on ServerFault but they are specific to Vista or Linux, so again - I'm using WinXP. I've also tried unetbootin, but ...
4
votes
7answers
1k views

Why are usb hubs only available up to 7 ports? [closed]

Why are usb hubs only available up to 7 ports? Is there something technical that prevents that? I thought USB addressing allowed 127 USB devices to be connected, so that's not it. EDIT: Thanks for ...
4
votes
2answers
511 views

Proliant ML370 G5 and “dongle” removal

Recently I've bought a Proliant ML370 G5 in tower case. After I got it the seller asked me to remove the "dongle" from it and return it back to him. The problem is I can't locate the "dongle" thing in ...
4
votes
1answer
2k views

Does a RAID 1 really protect from HDD failure?

If using a RAID 1 and if there are any inconsistencies between both disks found, data is copied from the primary disk (most likely the one with the lower port number) to the secondary disk. 1) But ...
4
votes
3answers
2k views

Is it possible to make a USB port provide access to a file system?

This is a weird one. Allow me to clarify, I have a Debian Linux file server - and I need to access some files from it. Usually, I would just use a network for this (wifi, ethernet, etc) but ...
4
votes
4answers
894 views

Does this device exist - an external drive enclosure that takes multiple 3.5" drives?

We've all seen the external drive cases that take a 3.5" drive and present it as a USB, eSATA or firewire device. I'm looking for the same sort of thing, but I want the case to take multiple drives ...
4
votes
4answers
1k views

Linux console - programmatical detection of which device a USB storage is assigned to

Every morning 9am we plug an external HD to our office server (always to the same USB port). Every day the HD is new, but all of them are made by the same manufacturer (Freecom). Everyday at 12am, a ...
4
votes
3answers
2k views

Manage USB hard disk on Ubuntu

I have some USB drives attached to my Ubuntu machine, I was looking for some commands to: Power-Off a drive after umounting it. Power-On and Re-Mount. Does it make sense to power-off and on a USB ...
4
votes
2answers
738 views

Managing consistent mounting of external USB hard drives in Linux (CentOS 5)

I have configured a server with CentOS 5.2 and am now working out a backup strategy. I plan on using Amanda as the backup application. Additionally, I am leaning towards using some USB hard drives for ...
4
votes
1answer
1k views

How can I test for BadUSB vulnerability?

There are news that an unpatchable and unfixable USB firmware exploit is "out there". This could seem unrelated to servers but since the affected hardware from Phison is not disclosed there is a ...
4
votes
1answer
1k views

Use WMI to detect a USB drive was connected, regardless of whether it was mounted?

I am writing a script that uses MS KB 823732 to temporarily prevent users from plugging in new USB storage devices. This works fine, and the HKLM\...\Services\UsbStor registry key successfully blocks ...
4
votes
5answers
1k views

100% CPU use when new usb device plugged in - services.exe / windows server 2003

On my server I am trying to install a new usb drive but all that happens is the system starts using huge amounts of processor cycles with services.exe. On closer inspection with process explorer there ...
3
votes
7answers
9k views

USB drive changes name from /dev/sdb to /dev/sdc (and back again) when copying?

I have a usb drive mounted to a folder in an Ubuntu 9.04 server installation. The mount options are stored in /etc/fstab for easy mounting/dismounting: # <file system> <mount point> ...
3
votes
4answers
352 views

optimal folder structure for storing 100k files on a USB drive

I need to store 100k files (around 40GB) in a USB drive. Each file has a unique int id (e.g 45000). Option one is to put all files in a single folder: root/ root/1.pdf root/2.pdf root/3.pdf ... ...
3
votes
3answers
481 views

Is an Ethernet point to point connection without a switch real time capable?

In automation and control, it is commonly stated that ethernet can't be used as a bus because it is not real time capable due to packet collisions. If important control packets collide, they often ...
3
votes
5answers
271 views

Temporary external mounting of 3.5" SATA/IDE drives

What do you use for temporarily externally mounting 3.5" SATA and IDE hard drives? When I'm in the field and just have a laptop with me, I'd like to be able to mount a client's drive to my laptop for ...
3
votes
2answers
16k views

How to get USB Devices to AutoMount in Ubuntu 12.04 Server

In Ubuntu 12.04 Desktop, USB devices can be plugged in, and they just work for the most part. In Ubuntu 12.04 Server, when I plug in a USB device it does nothing. How can I setup server do act like ...
3
votes
3answers
3k views

USB forwarding from dom0 to domU

What are my options to forward two USB connected phones to xen guest? I've read about PCI-passthrough http://www.wlug.org.nz/XenPciPassthrough, but I'm sure usb controller in the server isn't a pci ...
3
votes
1answer
492 views

Looking for a USB GSM modem, compatible with Solaris 10 (sparc)

Seven months on SF, and my first question. I do hope someone has an answer, as I'm at my wits' end. I have a Nokia 6310i connected via RS232 cable to a Solaris 10 system, for sending SMS messages ...
3
votes
3answers
192 views

Can USB powered device affect longevity of the port?

Looking to purchase a new DVD Writer for the first time, I notice there are USB powered devices available which do not require an external adapter/power-supply. This may be sufficient for stuff that ...
3
votes
1answer
290 views

HP ProLiant DL320e G8 v2 - USB2.0 during POST

Initially my USB2.0 ports were working during POST (and boot). However, now they appear not to be. I first noticed this when I could not access the RBSU by pressing F9 during POST. Then found that I ...
3
votes
2answers
4k views

How can I setup PCI passthrough for my HighPoint 1144A USB 3.0 card under ESXi 5.1?

I have an Apple Mac Pro (MacPro5,1) running VMware ESXi 5.1.0 (799733) with a HighPoint RocketU 1144A USB 3.0 PCI-express card installed. Given that VMware ESXi 5.1 doesn't support USB 3.0 for ...
3
votes
6answers
2k views

Map Floppy A drive to USB

I need a way to assign my windows A: drive to a usb. In fact multiple usb's keys and always the standard windows floppy drive A:. It doesn't need to be bootable... Yes I know that I can set the drive ...
3
votes
1answer
293 views

USB device goes to “Unknown device” randomly

We have a kiosk that uses a bio scanner from m2sys (usb device). It scans your palm to recognize you. Every so often, maybe 1-3 times a day, the bio scanner will become an unknown device. We are ...
3
votes
3answers
363 views

Looking for a way to audit/monitor removable media on a Mac

We have a client who's requiring that we implement dataloss prevention on workstations that are accessing their project's data. If Alice attaches removable media (USB, FireWire, CD, DVD) to her ...
3
votes
1answer
3k views

Our embedded linux system won't recognize a USB Device if it is plugged in before powerup. Suggestions?

We are developing on a small embedded device. This device us a gumstix overo board running OpenEmbedded linux. We have our development almost completely done, and have run into the strangest of bugs ...