Ubuntu: One install for all computers


I read somewhere that running the ISO image of ubuntu on a USB bootable key was more robust than the installed version of the same ubuntu on the same USB key, because the ISO image do some additional tests to check that the material is supported (and may pack additional drivers).

What I'm asking : is it possible to provide the same robustness with installed image, in order to have one install that works on all computers ?

What I'm not asking : how to install ubuntu on my external drive. Nor how to put a live version of ubuntu on my external drive.

I'm asking this because I'd like to put an an external Hard Driver a linux system that I could transport with me everywhere, and I would like it to be as strong as possible.

Thank you.


Actually, the goal you are trying to achieve here can only be done through a USB drive. A live installation can be operated in any device as it adjust itself according to the system. But same can't be done in an external Hard drive. You do can install the hard drive and adding a boot image into it, hence boot from that particular hard drive, but there is no 100% guarantee that it will run in all devices because your ubuntu installation was set according to that pc which you used to install the os on.

But still if you do wanna install ubuntu on an external hardrive- you will have to partition it.The best thing to do is shrink this partition by about 20 GB (which is more than enough for Ubuntu) and create new partitions there. Either use Windows' Disk Management tool to shrink the partition, or use GParted from the Ubuntu Live mode. Install Ubuntu to this partition. Choose your external hard disk as the device for GRUB (bootloader) installation as well.

Try the above method and then tell me if you had any luck. I would love to see it work the way you wanted it.

One machine can do the work of fifty ordinary men. No machine can do the work of one extraordinary man. -Elbert Hubbard


Here is an alternate solution. In this case you will burn the installation ISO in the external drive. In this way it can be used as a portable os, and also can be used to install Ubuntu in other PC's. You can also achieve the self "adjust parameter" in this way.

Make atleast a 20gb partition using Gparted or windows disk management.

Install UNetbootin from your software centre or though these commands:

sudo add-apt-repository ppa:gezakovacs/ppa sudo apt-get update sudo apt-get install unetbootin

Open UNetbootin, select your distribution, select Select the ISO file , select a target drive (USB Drive or Hard Disk), then reboot. When you reboot open the boot manager (default f12) and select the external hard drive. Hope this Helps!

your question should be - Can I install Ubuntu from a external hard drive? and the answer is YES

It has become appallingly obvious that our technology has exceeded our humanity.
-Albert Einstein

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