Share
VIDEOS 1 TO 50
How to make Linux Bootable off a USB Stick (Live USB)
How to make Linux Bootable off a USB Stick (Live USB)
Published: 2013/02/17
Channel: OSFirstTimer
Install and Run Windows 7/8/10 Off a Live USB Flash Drive
Install and Run Windows 7/8/10 Off a Live USB Flash Drive
Published: 2015/08/26
Channel: AA Computers and Technology
Embracing Linux: Bootable USB Drive
Embracing Linux: Bootable USB Drive
Published: 2016/08/28
Channel: ExplainingComputers
簡単に作れる!ubuntu LiveUSB(ライブUSB) 作成手順紹介 動画
簡単に作れる!ubuntu LiveUSB(ライブUSB) 作成手順紹介 動画
Published: 2016/11/29
Channel: コジコジのオタク文化 情報局
[Hindi] How to make fully loaded Persistent Kali Linux Live USB Drive
[Hindi] How to make fully loaded Persistent Kali Linux Live USB Drive
Published: 2017/02/16
Channel: TechChip
Descargar e instalar linux live usb creator, crear Live USB y arrancar desde el
Descargar e instalar linux live usb creator, crear Live USB y arrancar desde el
Published: 2015/04/03
Channel: TutorialesNecesarios
Create Bootable Live Windows 10 USB
Create Bootable Live Windows 10 USB
Published: 2016/07/20
Channel: Britec09
antiX 17 - Make a live-USB w/ persistence!
antiX 17 - Make a live-USB w/ persistence!
Published: 2017/10/25
Channel: runwiththedolphin
Mint Linux 18: Create bootable USB Device to Install Mint Linux or Run Live
Mint Linux 18: Create bootable USB Device to Install Mint Linux or Run Live
Published: 2016/12/17
Channel: SysAdmGirl
How to Make a LIVE Boot USB for Windows/Linux! // Rufus Tutorial
How to Make a LIVE Boot USB for Windows/Linux! // Rufus Tutorial
Published: 2016/05/06
Channel: EposVox
How to create a bootable USB stick with Linux Live USB Creator (LiLi)
How to create a bootable USB stick with Linux Live USB Creator (LiLi)
Published: 2012/07/25
Channel: dalaiyoda
How to Create Persistent Bootable Linux USB Pen Drive
How to Create Persistent Bootable Linux USB Pen Drive
Published: 2015/09/18
Channel: Britec09
Save Changes to Linux Live USBs. Create Persistent Bootable Drives
Save Changes to Linux Live USBs. Create Persistent Bootable Drives
Published: 2014/09/01
Channel: Tekzilla
Linux Live USB Creator
Linux Live USB Creator
Published: 2011/09/29
Channel: Linux31
How to make a persistent Kali Linux USB Drive
How to make a persistent Kali Linux USB Drive
Published: 2016/02/03
Channel: JackkTutorials
Como instalar Windows o linux desde usb con Linux Live USB Creator Gratis en Español
Como instalar Windows o linux desde usb con Linux Live USB Creator Gratis en Español
Published: 2015/01/13
Channel: UNBOXME: Canal de Hardware review
How To Run Windows From USB  (windows live USB)
How To Run Windows From USB (windows live USB)
Published: 2017/04/16
Channel: eggnog
Fedora 24 Linux: Create bootable USB Device to Install Fedora Linux or Run Live
Fedora 24 Linux: Create bootable USB Device to Install Fedora Linux or Run Live
Published: 2016/05/27
Channel: SysAdmGirl
Ubuntu USBインストラー(Ubuntu LIVE USB)の作り方
Ubuntu USBインストラー(Ubuntu LIVE USB)の作り方
Published: 2016/12/21
Channel: kh ゲーム実況者
How to Create A Linux Live USB
How to Create A Linux Live USB
Published: 2014/10/11
Channel: lllxXHackerXxlll | Exception
run windows xp/7/8/10 Off a Live USB Flash Drive without hard disk hindi/urdu by free knowledge
run windows xp/7/8/10 Off a Live USB Flash Drive without hard disk hindi/urdu by free knowledge
Published: 2017/02/02
Channel: Free Knowledge
Как пользоваться Live CD DVD USB часть 1.
Как пользоваться Live CD DVD USB часть 1.
Published: 2011/12/12
Channel: Wonderful World
How To Install/Create a Bootable Ubuntu USB Stick/Flash Drive
How To Install/Create a Bootable Ubuntu USB Stick/Flash Drive
Published: 2015/01/01
Channel: Jamie Wagner
2016-10-16 Live USB drive data recovery
2016-10-16 Live USB drive data recovery
Published: 2016/10/17
Channel: Louis Rossmann
Installing linux onto a usb flash drive
Installing linux onto a usb flash drive
Published: 2011/12/02
Channel: Linux Leech
MX-16 live-USB with persistence
MX-16 live-USB with persistence
Published: 2016/12/15
Channel: runwiththedolphin
Como instalar e rodar Kali Linux num Pendrive (Live USB)
Como instalar e rodar Kali Linux num Pendrive (Live USB)
Published: 2014/05/27
Channel: CaveiraTech
Ubuntu Live USB With Persistent Data
Ubuntu Live USB With Persistent Data
Published: 2017/06/13
Channel: TinyTechBytes
Como criar Live do Ubuntu e usar pelo pendrive
Como criar Live do Ubuntu e usar pelo pendrive
Published: 2016/05/31
Channel: AG clube da informatica
[Hindi] How to Install Kali Live Linux on USB Drive
[Hindi] How to Install Kali Live Linux on USB Drive
Published: 2016/12/06
Channel: TechChip
Como colocar o Kali Linux no modo Live USB Persistence (pendrive)
Como colocar o Kali Linux no modo Live USB Persistence (pendrive)
Published: 2016/01/23
Channel: Limon Tec
Gparted Partition Tool Live USB Boot Drive Creation And Tutorial
Gparted Partition Tool Live USB Boot Drive Creation And Tutorial
Published: 2015/03/31
Channel: Richard Lloyd
How to create a bootable USB stick with Linux Live USB Creator (LiLi)
How to create a bootable USB stick with Linux Live USB Creator (LiLi)
Published: 2016/04/02
Channel: Ahsan Mahfooz
Windows 98 TO GO!  (live USB image + download)
Windows 98 TO GO! (live USB image + download)
Published: 2016/02/11
Channel: quad8
Kali Linux - Lesson 2 - USB Bootable
Kali Linux - Lesson 2 - USB Bootable
Published: 2013/08/27
Channel: JackkTutorials
Clonezilla Disk Imaging And Cloning Utility Live USB Boot Disk Tutorial
Clonezilla Disk Imaging And Cloning Utility Live USB Boot Disk Tutorial
Published: 2015/04/09
Channel: Richard Lloyd
[Tuto] Linux Live USB Creator
[Tuto] Linux Live USB Creator
Published: 2014/05/15
Channel: TAI AFPA
How to Live Boot Ubuntu 17.04 Zesty Zapus on USB ? 💻 🐧
How to Live Boot Ubuntu 17.04 Zesty Zapus on USB ? 💻 🐧
Published: 2017/05/08
Channel: SAIDEEP DICHOLKAR
How to configure Kali linux live and live USB persistence
How to configure Kali linux live and live USB persistence
Published: 2016/10/12
Channel: Hydra Hacker
Installer Linux UBUNTU sur une clé USB
Installer Linux UBUNTU sur une clé USB
Published: 2010/10/31
Channel: Noha Abdelmouttalib
Kali Linux Live USB Persistence On Mac
Kali Linux Live USB Persistence On Mac
Published: 2015/11/28
Channel: pentestmac
How to Create a Bootable Ubuntu 13.10 USB Flash Drive
How to Create a Bootable Ubuntu 13.10 USB Flash Drive
Published: 2014/01/13
Channel: MicrowaveSam
Как восстановить систему при помощи Dr Web LiveUSB
Как восстановить систему при помощи Dr Web LiveUSB
Published: 2014/01/29
Channel: Studytheprograms
Linux auf USB-Stick erstellen - Linux Live USB Creator - [4K Video]
Linux auf USB-Stick erstellen - Linux Live USB Creator - [4K Video]
Published: 2016/12/28
Channel: Tuhl Teim DE
How To Make Kali Linux Bootable USB-Make Kali Linux Bootable USB   kali linux live usb install
How To Make Kali Linux Bootable USB-Make Kali Linux Bootable USB kali linux live usb install
Published: 2016/10/10
Channel: TheLifeHax
LinuxLive USB Creator: Portable Linux
LinuxLive USB Creator: Portable Linux
Published: 2012/09/30
Channel: learningtocompute
Step by step how to make a Kali Linux Live USB Flash Boot Drive
Step by step how to make a Kali Linux Live USB Flash Boot Drive
Published: 2014/08/01
Channel: WirelesSHack
Попробовать Linux (Ubuntu) без установки на компьютер | LiveUSB
Попробовать Linux (Ubuntu) без установки на компьютер | LiveUSB
Published: 2016/06/16
Channel: СompInfo
Ejecutar Android desde USB - live USB
Ejecutar Android desde USB - live USB
Published: 2017/07/02
Channel: Krwindows
Tutoriel | Créer une clé USB Linux bootable | HD Français
Tutoriel | Créer une clé USB Linux bootable | HD Français
Published: 2015/10/20
Channel: Tommy Desrochers
NEXT
GO TO RESULTS [51 .. 100]

WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Puppy Linux, an example of an operating system for live USBs.

A live USB is a USB flash drive or external hard disk drive containing a full operating system that can be booted. Although they are closely related to live CDs in that they can be used in embedded systems for system administration, data recovery, or test driving, live USBs can persistently save settings and install software packages on the USB device. Many operating systems including Mac OS 9, macOS, Windows XP Embedded and a large portion of Linux and BSD distributions can run from a USB flash drive, and Windows 8 Enterprise has a feature titled Windows To Go for a similar purpose.

Background[edit]

Personal computers introduced USB booting in the early 2000s, with the Macintosh computers introducing the functionality in 1999 beginning with the Power Mac G4 with AGP graphics and the slot-loading iMac G3 models.[1] Intel-based Macs carried this functionality over with booting macOS from USB.[2] Specialized USB-based booting was proposed by IBM in 2004 with Reincarnating PCs with Portable SoulPads and Boot GNU/Linux from a FireWire device.[3][4]

Benefits and limitations[edit]

Live USBs share many of the benefits and limitations of live CDs, and also incorporate their own.

Benefits[edit]

  • In contrast to live CDs, the data contained on the booting device can be changed and additional data stored on the same device. A user can carry his or her preferred operating system, applications, configuration, and personal files with them, making it easy to share a single system between multiple users.
  • Live USBs provide the additional benefit of enhanced privacy because users can easily carry the USB device with them or store it in a secure location (e.g. a safe), reducing the opportunities for others to access their data. On the other hand, a USB device is easily lost or stolen, so data encryption and backup is even more important than with a typical desktop system.
  • The absence of moving parts in USB flash devices allows true random access avoiding the rotational latency and seek time (see mechanical latency) of hard drives or optical media, meaning small programs will start faster from a USB flash drive than from a local hard disk or live CD. However, as USB devices typically achieve lower data transfer rates than internal hard drives, booting from older computers that lack USB 2.0 or newer can be very slow.

Limitations[edit]

  • LiveUSB OSes like Ubuntu Linux apply all filesystem writes to a casper filesystem overlay (casper-rw) that, once full or out of flash drive space, becomes unusable and the OS ceases to boot.
  • USB controllers on add-in cards (e.g., ISA, PCI, and PCI-E) are almost never capable of being booted from, so systems that do not have native USB controllers in their chipset (e.g., such as older ones before USB) likely will be unable to boot from USB even when USB is enabled via such an add-in card.
  • Some computers, particularly older ones, may not have a BIOS that supports USB booting. Many which do support USB booting may still be unable to boot the device in question. In these cases a computer can often be "redirected" to boot from a USB device through use of an initial bootable CD or floppy disk.[5][6][7]
  • Intel-based Macintosh computers have limitations when booting from USB devices – while the Extensible Firmware Interface (EFI) firmware can recognize and boot from USB drives, it can only do this in EFI mode. When the firmware switches to "legacy" BIOS mode, it no longer recognizes USB drives. Non-OS X systems may not be typically booted in EFI mode, notably Windows and Linux, and thus USB booting may be limited to supported hardware and software combinations, which can easily be booted via EFI,[8] however, programs like Mac Linux USB Loader can alleviate the task of booting a Linux-live USB on a Mac. This limitation could be fixed by either changing the Apple firmware to include a USB driver in BIOS mode, or changing the operating systems to remove the dependency on the BIOS.
  • Due to the additional write cycles that occur on a full-blown installation, the life of the flash drive may be slightly reduced. This doesn't apply to systems particularly designed for live systems which keep all changes in RAM until the user logs off.[9] A write-locked SD card (known as a Live SD, the solid-state counterpart to a Live CD) in a USB flash card reader adapter is an effective way to avoid any duty cycles on the flash medium from writes and circumvent this problem. The SD card as a WORM device has an essentially unlimited life. An OS such as Linux can then run from the live USB/SD card and use conventional media for writing, such as magnetic disks, to preserve system changes; see persistence (computer science).

Setup[edit]

Various applications exist to create live USBs; examples include Rufus, Fedora Live USB Creator, UNetbootin, WinToUSB, Win32DiskImager, and YUMI, which works with a variety of distributions. A few Linux distributions and live CDs have ready-made scripts which perform the steps below automatically. In addition, on Knoppix and Ubuntu extra applications can be installed, and a persistent file system can be used to store changes. A base install ranges between as little as 16 MiB (Tiny Core Linux) to a large DVD-sized install (4 gigabytes).

To set up a live USB system for commodity PC hardware, the following steps need to be done:

  • A USB flash drive needs to be connected to the system, and be detected by it
  • One or more partitions may need to be created on the USB flash drive
  • The "bootable" flag must be set on the primary partition on the USB flash drive
  • An MBR must be written to the primary partition of the USB flash drive
  • The partition must be formatted (most often in FAT32 format, but other file systems can be used too)
  • A bootloader must be installed to the partition (most often using syslinux when installing a Linux system)
  • A bootloader configuration file (if used) must be written
  • The necessary files of the operating system and default applications must be copied to the USB flash drive
  • Language and keyboard files (if used) must be written to the USB flash drive
  • USB support in the BIOS' boot menu (although there are ways to get around this; actual use of a CD or DVD can allow the user to choose if the medium can later be written to. Write Once Read Many discs allow certainty that the live system will be clean the next time it is rebooted.)

Knoppix live CDs have a utility that, on boot, allows users to declare their intent to write the operating system's file structures either temporarily, to a RAM disk, or permanently, on disk and flash media to preserve any added configurations and security updates. This can be easier than recreating the USB system but may be moot since many live USB tools are simple to use.

Full installation[edit]

An alternative to a live solution is a traditional operating system installation with the elimination of swap partitions. This installation has the advantage of being efficient for the software, as a live installation would still contain software removed from the persistent file due to the operating systems installer still being included with the media. However, a full installation is not without disadvantages; due to the additional write cycles that occur on a full installation, the life of the flash drive may be slightly reduced. To mitigate this, some live systems are designed to store changes in RAM until the user powers down the system, which then writes such changes. Another factor is if the speed of the storage device is destitute; performance can be comparable to legacy computers even on machines with modern parts if the flash drive transfers such speeds. One way to solve this is to use a USB hard drive, as they generally give better performance than flash drives regardless of the connector.

Windows[edit]

Although many live USBs rely on booting an open-source operating system such as Linux, it is possible to create live USBs for Windows by using Diskpart[citation needed] or WinToUSB.[10]

Examples of Live USB operating systems[edit]

Bootable Windows To Go USB flash drive
  • BeleniX: Customized OpenSolaris installs including live CD and live USB.[11]
  • Debian officially supports a Debian live project providing live images for its stable releases, with a choice of several desktop environments
  • Fedora (with Fedora Media Writer)
  • Gentoo Gentoo USB Live
  • Haiku: the Installer tool installs the operating system onto a hard disk or a USB Live indifferently.
  • Knoppix, one of the first live Linux distributions
  • Mac OS X (Intel): The Intel versions of Mac OS X can be booted off any USB file system including (but not limited to) USB flash drives.
  • OpenBSD[12]
  • OpenSolaris: The Distribution Constructor project has tools allowing users to build an install image.
  • OS-9 RTOS: The standard OS-9 Configuration Wizard for X86 creates bootable USB sticks. OS-9 5.0 for X86 will support the creation of bootable CDs.
  • OSx86: some "hacked" Mac OS X images can be written to a USB flash drive and turn it into a bootable Mac OS X system.
  • Pardus: by usb creator tools
  • Puredyne: live CD/DVD/USB distribution for media artists and designers.
  • PCLinuxOS: Version 2009.1 comes with a live USB creator tool, version 2008 "MiniMe" can be installed manually.[13]
  • Puppy Linux: Designed for easy install on USB. The Quirky 6.2 image even runs off F2FS storage.[14]
  • Sugar: Sugar on a Stick is a Live USB for children and learning.
  • Tails: The Amnesic Incognito Live System, using Tor anonymisation, based on Debian
  • Ubuntu Desktop (install media): can be running live-session from a USB drive, including programs, settings and documents.
  • Windows To Go: Windows 8 feature that will allow the entire system to run from a USB drive, including programs, settings and documents
  • Windows Preinstallation Environment: Freely available version of a live Windows installation, command-line only.

Comparison[edit]

Distribution Alternatives to live CD creation File saving Application saving Boot methods
Fedora 9 Netinstaller (downloads an ISO image and makes USB), UNetbootin In folder None
Gobolinux Zip + sh and bat scripts N/A N/A 2ram (gobolinux toram)
Slax Zip + sh and bat scripts, UNetbootin N/A N/A
SliTaz None and from internal drive ($tazusb) In hacker folder Through script (Tazusb) 2ram – lowram
Ubuntu
and derivatives
UNetbootin Auto Auto
Wolvix None (Control Panel) Auto after making permanent space (Control panel) Auto AllUsb – 2Ram

Syslinux is a common program to make a bootable USB storage device.

See also[edit]

External links[edit]

References[edit]

  1. ^ "USB Info and Benefits of Dual-Channel USB". Apple (published February 20, 2012). September 16, 2003. Retrieved September 25, 2016. Bootable USB drives: A storage device such as a SuperDisk, Zip disk, or other USB storage drive can be used to hold a valid system folder and used at startup. 
  2. ^ "Starting from an external USB storage device (Intel-based Macs)". Apple. March 22, 2016. Retrieved September 25, 2016. 
  3. ^ Singer, Michael (August 15, 2005). "IBM brains capture a PC's soul". CNET. CBS Interactive. Retrieved September 25, 2016. 
  4. ^ Honeyford, Martyn (July 15, 2004). "Boot Linux from a FireWire device". IBM DeveloperWorks. IBM. Archived from the original on January 17, 2007. Retrieved May 15, 2016. 
  5. ^ Trevor (May 6, 2010). "Boot From a USB Drive Even if your BIOS Won't Let You". How-To Geek. Retrieved September 25, 2016. 
  6. ^ "Plop Boot Manager". February 7, 2012. Retrieved September 25, 2016. 
  7. ^ "Use a Floppy to Boot USB Pendrive Linux". Pen Drive Linux. Retrieved September 25, 2016. 
  8. ^ knome (December 14, 2013). "MactelSupportTeam/EFI-Boot-Mactel". Ubuntu Community Help Wiki. Canonical Ltd. Retrieved September 25, 2016. 
  9. ^ "XFCE minimum install HD". Linux Mint Forums. Retrieved September 25, 2016. Live cd only write to the swap partition if your pc has one.
    If it doesn't it'll only use your RAM.
     
  10. ^ Gordon, Whitson. "How to Run a Portable Version of Windows from a USB Drive". Lifehacker. Gawker Media. Retrieved September 25, 2016. 
  11. ^ dminer (November 1, 2007). "OpenSolaris Developer Preview on USB flash drives". Sun. Archived from the original on August 3, 2009. 
  12. ^ https://www.openbsd.org/faq/faq4.html#MkInsMedia.  Missing or empty |title= (help)
  13. ^ "Create a MiniMe 2008 USB Flash Drive from Windows". Pen Drive Linux. Retrieved September 25, 2016. 
  14. ^ Sridharan, Sriram (July 12, 2008). "Installing an Operating System on a USB drive". Orangeman Burns. Archived from the original on March 9, 2009. Retrieved September 25, 2016. 

Disclaimer

None of the audio/visual content is hosted on this site. All media is embedded from other sites such as GoogleVideo, Wikipedia, YouTube etc. Therefore, this site has no control over the copyright issues of the streaming media.

All issues concerning copyright violations should be aimed at the sites hosting the material. This site does not host any of the streaming media and the owner has not uploaded any of the material to the video hosting servers. Anyone can find the same content on Google Video or YouTube by themselves.

The owner of this site cannot know which documentaries are in public domain, which has been uploaded to e.g. YouTube by the owner and which has been uploaded without permission. The copyright owner must contact the source if he wants his material off the Internet completely.

Powered by YouTube
Wikipedia content is licensed under the GFDL and (CC) license