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Thread: USB DualBoot [multiple questions]

  1. #1
    Join Date
    Jun 2012
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    USB DualBoot [multiple questions]

    I am planning on using a 32G USB to dual boot linux. My previous setup on the PC was Windows // Ubuntu // Debian // swap. On my new laptop (for various reasons) I want to dual boot linux from USB and still include a space for files. Based on what I have read (including a similar thread here) I am planning on partitioning for Storage // Ubuntu // Debian with full installs rather than live/persistent version.

    How will treating both Ubuntu and Debian as 'normal' installs (including seting up Grub) fail with regard to default directories/files?

    Best way to manage files shared from Ubuntu & Debian (casper-rw?)? FAT32 or a seperate partition?


    Any suggestions for swap? On Storage, or using random HDD Drives (could be dangerous)?

    I am assuming better speed with a full install over persistent, any idea on wear and tear on flash memory, and what best to use to backup/move to a new drive when neccessary? (USB will have lifetime guarantee anyway)

    I am planning on using VirtualBox, I think I should be able to run in Windows or boot directly into the OS with this setup (there is a tweak for running from USB). Can anyone confirm this? I currently see no reason why not, although most articles I have read use Live distros.


    This is a project to see whether I can put this together and to make linux available so I can start making use of it (either directly or through VirtualBox). I'd like to see whether my concept is possible - I see no reason why not as USB is simply an external drive, but mainly I'm trying to find what pitfalls and hazards I may come across.

    Thanks,
    Lucien M

  2. #2
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
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    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: USB DualBoot [multiple questions]

    Is this a USB flash drive? USB is slower than SATA port and Flash is slower than hard drive particularly writes. I have a full install of Ubuntu in 8GB on my 16GB flash with the rest for data. No swap at all with 4GB but I try not to load too many apps at once. It is more for testing with laptop and emergency boot.

    Pros & cons of persistent install over direct install to flashdrives - C.S.Cameron
    http://ubuntuforums.org/showthread.php?t=1655412

    Installs to 4GB flash, newer of Ubuntu versions require 4.4GB as minimum
    HOW TO Avoid Wubi & Install Ubuntu 10.04 on USB Drive -amjjawad
    http://ubuntuforums.org/showthread.php?t=1650699
    HOW TO Install Lubuntu on USB Drive - amjjawad
    http://ubuntuforums.org/showthread.php?t=1872303

    It does not have to be encrypted BIOS based system:
    Standard full install with screenshots to flash or SSD:
    Ubuntu Encrypted Flash Memory Installation using alternative text based installer
    http://members.iinet.net/~herman546/p19.html
    More discussion Dec 2010, more SSD info
    http://ubuntuforums.org/showthread.php?t=1643591
    http://ubuntuforums.org/showthread.php?t=1404664

    Install to USB flash is not different than any install to a second drive, but with flash you want to change some settings to reduce writes for speed & life. Settings for flash are similar as settings for SSD, but flash does not support all the features (nor speed) of a SSD.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  3. #3
    Join Date
    Jun 2012
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    Re: USB DualBoot [multiple questions]

    Thanks,

    I'll start reading through these while I wait for a larger USB stick to arrive from eBay. Sounds like I'll do the same install I did last time with a few tweaks for USB.

    I'm not too worried about speed but obviously I would like it to be reasonable for using something so small. I'll have to look at what setting need changing for limiting write so I guess I'll start googling SSD setups.

    Many thanks again.

  4. #4
    Join Date
    Jun 2007
    Location
    Hikkaduwa, Sri Lanka
    Beans
    2,601
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: USB DualBoot [multiple questions]

    Reports of flash drives failing due to running Ubuntu are extremely rare. The only time I have heard was from a person running his server on a cheap, give away flash drive.

    http://www.bress.net/blog/archives/1...rive-Last.html
    Last edited by C.S.Cameron; June 12th, 2012 at 04:59 AM.

  5. #5
    Join Date
    Jun 2012
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    3

    [Solved] USB DualBoot [multiple questions]

    That's good to know.

    I'll mark it as solved for now, thanks.

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