I have tried many methods in the internet and every time I get a corrupted "burnt" USB image from the official "ubuntu-17.10-desktop-amd64.iso" file. The image either gets burned with 2048 bytes block size, instead of 512, or gets burned correctly (with 7_zip) but won't boot.

Even the official "Startup Disk Creator" won't do the job right.

I believe there is something wrong with the official file. PS: the SHA256SUM has been checked

  • 2
    I use mkusb to create a Live USB - it's available via PPA at https://launchpad.net/~mkusb/+archive/ubuntu/ppa Oct 26, 2017 at 12:23
  • 1
    Is the image when burned by startup disk creator showing a message about gfxboot or something like that when you try to boot it? Oct 26, 2017 at 13:04
  • If you are running the Startup Disk Creator in Ubuntu 16.04 LTS (or a newer version), it is using the very robust cloning method, and I think it is creating a good USB boot drive (as well as mkusb). Have you tried to boot from the USB boot drive? There are tools, for example gparted, that do not understand a cloned USB boot drive, and complain about it. The output that you get indicates such a problem. - But if you try with the Startup Disk Creator in older Ubuntu versions, for example in Ubuntu 14.04 LTS, there are several bugs, that cause problems.
    – sudodus
    Oct 26, 2017 at 14:04
  • mkusb if you are making the USB from a Linux machine or YUMI if you are using Windows machine. Rufus if you don't need persistence. Oct 27, 2017 at 15:57

2 Answers 2


you should check Etcher, which is a great tool for flashing ISO images to usb drives.

I've flashed the 17.10 ubuntu ISO to a 2GB drive just yesterday. Worked as a charm.

  • Etcher is nice. it shows the iso file is bootable or not before writing to usb drive.
    – suhailvs
    Dec 15, 2018 at 0:59

Thanks to sudodus to point out that gparted does not play well with cloned USB boot drive.

Actually my problem was that the first method I used to burn the image on the USB stick didn't work because it would not boot. Then I used gparted to check if the partition was really bootable. With no luck after other methods, I found out about the Startup Disk Creator and while checking the image with gparted before trying to boot I thought the image was corrupted.

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