Ubuntu 14.04 LTS live USB boot error (gfxboot.c32:not a valid COM32R image)

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When building a live usb using the usb-creator from Ubuntu 14.04 Trusty or Wily, the usb key prompts for a boot option (due to not matching syslinux version) as described here:

http://askubuntu.com/questions/486602/ubuntu-14-04-lts-live-usb-boot-error-gfxboot-c32not-a-valid-com32r-image/543284#543284

After entering "live", the system boots without issues. Then (as described in the above link) one can install the proper syslinux version in the usb and the error message never appears again.

I have also ported usb-creator 0.2.67 to Xenial in order to try if that would work as expected:

https://launchpad.net/~gcpp-kalxas/+archive/ubuntu/ppa-tzotsos

Still, it is needed to enter "live" in order to boot...

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Brief: Tutorial to show you how to create a bootable USB of Ubuntu in Windows. Instructions are valid for all versions of Ubuntu and Windows.

The first step of installing Ubuntu is to create a live USB or disk. If you are using Windows 7, 8.1 or 10, you can use Universal USB Installer to create a live USB. It’s my favorite tool and is extremely easy to use.

Let’s see how to easily make a live USB of Ubuntu in Windows 8.

Steps to create a live USB in Windows:

Step 1: Download Ubuntu ISO

Go to Ubuntu and download the ISO image of your preferred Ubuntu version. At present, there are two LTS version available, Ubuntu 14.04 and Ubuntu 16.04. You can download whichever you prefer.

Step 2: Download Universal USB Installer

Once you have downloaded the ISO of Ubuntu 16.04 or 14.04, go to this page and download the latest version of Universal USB Installer.

Download Universal USB Installer

Step 3: Creating the bootable...

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The general procedure to install Ubuntu (or Ubuntu flavour, Kubuntu, Lubuntu, Xubuntu, ...) from a USB flash drive is:

Acquire the correct Ubuntu installation files ('the ISO') Put Ubuntu onto your USB flash drive Configure your computer to boot from USB flash drive and boot from it

Try Ubuntu (Kubuntu, Lubuntu, Xubuntu, ...) before installing it

Install Ubuntu to your internal drive (hard disk drive or solid state drive).

Ubuntu can be installed from a USB flash drive. This may be necessary for netbooks and other computers without CD drives and is handy for others because a USB flash drive is so convenient. Also, you can configure Ubuntu on the USB flash drive to save changes you make, unlike a read-only CD-ROM drive.

Booting from a USB flash drive created with usb-creator alias Startup Disk Creator and mkusb will behave just as if you had booted from the install CD. It will show the language selection and then the install menu, from which you can...

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The latest version of Ubuntu is 16.04 and it is a long term support release which means it will be supported until 2021.

You do however need to make sure you choose the correct flavour. The choices are 64-bit or 32-bit.

To find out whether you are running a 32-bit or 64-bit type “PC Info” into the search box. Click the “About Your PC” option that appears at the top of the results.

A settings window will appear and halfway down the right hand side of the page you will see the words 32-bit or 64-bit.

Now that you know whether your computer is running 32-bit or 64-bit you can choose the relevant option on the Ubuntu download page and click the “Download” link.


You will be asked to make a donation, which helps with the future development of Ubuntu. The default amount is 15. You can increase or decrease this amount by either sliding the sliders to the left or right on each category or entering numbers in the box.

If you...

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Please specify your computer, it makes it easier to give relevant advice.

- Brand name and model
- CPU
- RAM (size)
- graphics chip/card
- wifi chip/card

Can you run a live session in this computer (that is nonfunctional now)? In that case you can also make an installed system work, but there might be problems with a driver for graphics and wifi, a driver that is used automatically in the live system, but is not installed automatically. It may help to make a new installation with the computer connected via wired network. Repairing might be harder than a fresh installation.

Anyway, installations and re-installations are risky. Please check that you have a current backup of your personal files and Windows before continuing.

Edit: I see you edited your post, and that you finally succeeded. Congratulations

And thanks for sharing your...

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Ubuntu 14.04 live USB Boot problem

location: ubuntuforums.com - date: April 27, 2014
Hi All I recently downloaded Ubuntu 14.04-32 bit iso from official source. I tried to install it to my computer by using Unebootin. But after the whole process when I tried to boot the usb I am stuck with syslinux screen forever. Any suggestions folks.

graphics problem loading ubuntu 12.04 live usb on old PC

location: ubuntuforums.com - date: October 20, 2013
AMD athlon 908 mhz with 768 mb ram graphics card matrox millennium g450 dual head running XP and tired of windows. used Automated Universal MultiBoot UFD Creation Tool to create live usb of Ubuntu 12.04 32bit. When that didn't work added Lubuntu 13.04. Both boots fail after the screen with (Lu)Buntu in the center and the four dots underneath changing color. Is that the startup screen? last mesg with Ubuntu is failsafe-x main process terminated with status 1. last mesg with Lubuntu is lightdm main process...

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Public bug reported:

Bug #1573206 is persisting in 16.04.1. Clean installation of 16.04.1
downloaded from Ubuntu website. Attempted to install Chrome using the
.deb downloaded from their website. Software Center doesn't install,
begins to hang just as it did before it was marked as fixed. Fix was
supposed to be rolled into the point one ISO per comments in that
tracker, but I am still experiencing it.

** Affects: gnome-software (Ubuntu)
Importance: Undecided
Status: New

** Tags: deb installing not package third-party

--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1605802

Title:
Software Center still fails to install third-party .deb packages

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1605802/+subscriptions

--
...

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HeyLinux wrote:Ok. Figured it out, chalk this one up to user-confusion. I thought I could go ahead and install 64 bit version since I do have a 64 bit processor, turns out not so.

Glad you got it working, but still very strange for 64-bit Mint not to work on a 64-bit processor. I'm thinking that maybe you just had a bad burn of the DVD/USB -- that happens sometimes. Maybe try burning another one just to see if works. Up to you though -- if you're fine with 32-bit then don't worry about it.

HeyLinux wrote:can anyone tell me if Linux Mint stays pretty much the same from distribution to distribution(Upgrade 13 to 14)?.

Nobody can "guarantee" anything in future, but generally speaking most changes are not drastic overhauls and dramatically different from prior versions.

Mint is based on Ubuntu and therefore follows their release schedule. (That may change in the future.) See link below for details on release schedule. Every two years there is an LTS...

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Updated August 21, 2016.

This guide shows you how to create a UEFI bootable Ubuntu USB drive.

The point of creating a USB drive in this way is to ensure that when you run Ubuntu and start the installer you will definitely be installing Ubuntu using the UEFI version and not the standard BIOS version.

The USB drive created using this guide will not work on computers without the UEFI bootloader.

If you don't have a UEFI bootloader follow this guide to create a bootable Linux USB drive.

For this guide you will need a blank USB drive with at least 2 gigabytes of space.

As an additional bonus this guide will also show you how to make the drive persistent so that changes made in the live mode are kept for each subsequent boot.

The first thing to do is download Ubuntu by visiting http://www.ubuntu.com/download/desktop.

(Make sure you download the 64 bit version of Ubuntu)

After you have downloaded Ubuntu you will need to...

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Keith Whittle: Well done vid! I hope to use this to create an install for my Ubuntu that crashed after downloading the new 16.xx and so we're using my spouse's win10 to make the usb drive like you describe here. Will we be able to just plug that into the port on my Ubuntu machine and make it install over the old? We can get to grub and pull up the xp that's on the other partition and we have space for the Ubuntu install... but the update failed at the end and I shut it off. It won't recover when booted up. Don't see the URL here for the 14.04 which is what I think I may have had before, but don't know.... had just been talking about back up... geeze. Will this URL work: http://releases.ubuntu.com/trusty/

The Dallas Telegraph: lair, this is NOT installation - it is creation of the installer on USB,

Flowty: clickbait

Dark Light: nicely done tutorial, but the title should be:
"How To Make an Ubuntu 14.04 Bootable USB"
or
"How to Make an Ubuntu 14.04...

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Short version

TL;DR; for when you know what you're doing:

In the boot: prompt after you hit the error above, type live and press Enter, to start the Live USB session.

Open a terminal (e.g. with Ctrl+Alt+t) and type each command line below one by one:

sudo -i apt-get update apt-get install syslinux mount | grep cdrom

The last command above shows you to which device your bootable USB is connected.

Important! replace /dev/sdb1 in the command below in the terminal with the device in the output of the last command above:

syslinux /dev/sdb1

Reboot and enjoy!

Long version

This error happens because you used a distribution with an earlier version of the syslinux package to create the bootable USB of a distribution expecting a later version (thanks, Amir Ali Akbari for the bug link).

This error also happens if you're using, say, Ubuntu 14.04 to make a bootable USB stick for anything from Ubuntu 15.04 and above.

The...

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