Installing distro iso images

Paul Gear ubuntuau at
Thu Aug 17 01:31:58 UTC 2017

Rob is correct - recent Ubuntu ISO images should be directly bootable
when dded to a USB flash drive.  This has been the case since at least
16.04, probably earlier, for at least amd64 images (I'd presume i386
images, too, but amd64 are the only ones I use, so I can't vouch for
them personally).

Geoffrey, if you open a terminal and run "sudo apt-get update && sudo
apt-get dist-upgrade -s", what is the output?


On 17/08/17 11:25, Rob Whyte wrote:
> Think they are hybrid images.
> On 17/08/17 11:24, Chris Debenham wrote:
>> An iso file is actually a DVD/CD image rather than a disk image and so
>> can't be directly written to a disk via dd.
>> Instead use something like 'usb-creator' to take the iso image and put it
>> on the disk in the right layout etc.
>> Check out for
>> more information
>> Chris
>> On 17 August 2017 at 11:15, Geoffrey Combes <gcombes4 at> wrote:
>>> Recently I have downloaded Linus iso images and loaded them to storage
>>> disks. The first was lubuntu to a TF card to be used with an OrangePi One
>>> and the second, this week, ubuntu 17.04 to one of my desktop PC's HDDs. I
>>> used the standard terminal command for this loading procedure. For example,
>>> with the iso on the desktop the terminal command was: sudo dd bs=4M
>>> if=~/Desktop/ubuntu-17.04-desktop-i386.iso of=/dev/sdb1
>>> My PC confirmed that the operating systems were properly installed on
>>> their respective storage media but neither would boot. For 17.04 my PC gave
>>> a reason for not booting, viz. "isolinux.bin is missing', which is not true
>>> as the file is in the iso. My question is: Have I left something out in the
>>> installing procedure? Or any other suggestions.
>>> By the way, my reason for obtaining the 17.04 image was to replace
>>> 16.04LTS which has developed a fault - both the Updating and Ubuntu
>>> Software apps have stopped working (a first time event for me).  This
>>> leaves me in a 'Catch 22' situation. As the 17.04 iso image won't boot I
>>> have ordered a 32-bit disk from Peter Baker using the on-line source
>>> Geoffrey Combes

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