Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have installed remsatersys back-up from the interwebs, so i could have a custom ISO. Per the instructions on many how to i chose the option Backup on the menu.

However when i reboot my PC to try the ISO, GRUB shows up but regardless of what option i pick it always gives this error:

  Error 15: file not found
  press any key to continue...

I have absolutely no idea what is it? what is missing?.


I was missing initrd.lzbut now i get this error:

Starting up ...
FATAL: Could not load /lib/modules/ No such file
or directory
Busybox v1.17.1 (Ubuntu 1:1.17.1-10ubuntu1) built-in shell (ash)
Enter `help` for a list of built-in commands
(initramfs) Unable to find a medium containing a live file system

Edit, again:

I've given up on remastersys, what other options do i have? that don't involve manually extracting the filesystem? or UCK?.

share|improve this question
up vote 2 down vote accepted

You can Use:


enter image description here

It allows you to customize them the way you want to within the matter of few minutes (on a modern PC) running Terminal, Synaptic, Desktop session (in chroot environment) and even more so you can modify the images to fit your needs.

To Install it:

  sudo add-apt-repository ppa:customizer-dev-team/devel
  sudo apt-get update
  sudo apt-get install customizer
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.