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Thread: Ubuntu installation on usb flash drive produces boot errors

  1. #1
    Join Date
    Aug 2020
    Beans
    2

    Ubuntu installation on usb flash drive produces boot errors

    hello Forum,

    i am new to Ubuntu.
    I have installed it on flash driver.
    When i try to boot, I am getting the following errors.

    Can you tell if i can run Ubuntu from flash drive and/or this error is fixable.
    thank you!

    ​boot message:
    vfs: cannot open root device sdc5 or unknown-block(0.0): error -6
    Please append a correct "root=" boot option: here are the available paritions:
    Kernel panic - not synciing: VFS: Unable to mount root fs on uknown-block(0.0)

    fstab file:

    # /etc/fstab: static file system information.
    #
    # Use 'blkid' to print the universally unique identifier for a
    # device; this may be used with UUID= as a more robust way to name devices
    # that works even if disks are added and removed. See fstab(5).
    #
    # <file system> <mount point> <type> <options> <dump> <pass>
    # / was on /dev/sdc5 during installation
    UUID=f38adcb0-ecf6-451c-9d9b-1ab438341d59 / ext4 errors=remount-ro 0 1
    # /mount1 was on /dev/sdc1 during installation
    UUID=83A0-B965 /mount1 vfat utf8,umask=007,gid=46 0 1
    # swap was on /dev/sdc6 during installation
    UUID=aabde635-1fb3-43f4-889d-6451649cec9e none swap sw 0 0

  2. #2
    Join Date
    Nov 2011
    Location
    /dev/root
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    Hidden!

    Re: Ubuntu installation on usb flash drive produces boot errors

    Please describe with details

    - The computer (brand name and model)
    - Thr computer's graphics chip/card (brand name and model)
    - The USB flash drive (size, brand name and model)

    - Is the computer booting in UEFI mode or BIOS mode? (If Windows 10 was installed, when you bought the computer, it is probably booting in UEFI mode).

    - How did you make the installation (the more details, the better)?



    The following link and links from it can give you some tips of what might be the problem,

    Can I install Ubuntu in a USB stick and run it as my learning machine? Will it run as a normal Ubuntu without difference?

  3. #3
    Join Date
    Aug 2020
    Beans
    2

    Re: Ubuntu installation on usb flash drive produces boot errors

    Hello,

    thank you for your respond.
    The issue was fixed by re-installing usb drive.
    I choose 11gb for root partition instead of 5.7 as an installation screen was recommending.
    Documentation recommends not less then 4.

    After installation i found ubuntu running Incredibly slow - much beyond point of usability.
    This laptop has 4gb ram and T... dual processor - very old.
    But it runs Win 7 well.

    It could be an issue with usb drive 2.
    I am going to continue researching the idea to run Linux on that pc.

  4. #4
    Join Date
    Nov 2011
    Location
    /dev/root
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    Hidden!

    Re: Ubuntu installation on usb flash drive produces boot errors

    There are flavours of Ubuntu with a lighter footprint, that work much better [than standard Ubuntu] in a very old computer,

    - Lubuntu
    - Xubuntu

    You find all currently supported versions and flavours of Ubuntu via this link:

    - releases.ubuntu.com/



    The following link can help you decide how an old computer can be used:

    - Old hardware brought back to life

  5. #5
    Join Date
    May 2013
    Location
    Galiza
    Beans
    2,654
    Distro
    Ubuntu

    Re: Ubuntu installation on usb flash drive produces boot errors

    As above.

    And regardless of the flavour you need to have realistic expectations. "Old computer" + USB2 will be slow no matter how light the Ubuntu flavour is.
    Installing in an internal HDD will be much different in this case.

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