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Can you help me with my problems?

i want to make a bootable usb image of a ubuntu system. point is, i want to use a USB (witch you normaly can install ubuntu from) to boot from with some special applications i need. i know you can use a ubuntu stick and click on "try ubuntu" to work from it. only problem is: you can install some apps to use it. but everytime you power off the pc you need to reinstall it.

i want to change or use a backup to make a usable usb like a hirens boot to change the image, so i can use all the tools i need without reinstalling it every single time. i've been stuck for some months now. can anybody help?

im not much of a programmer, although im learning it. anybody have an idea or who can help me to achieve my goal.

Also i already used squashfs files to edit it, but im not reallly understanding what i have to change. you can mount en unsquash the filesystem. and edit that, but it havent been succesfull for me. it didnt work everytime i tried

just to be clear again, goal:

create my own bootable ubuntu from an USB, with special application/tools of my or your (if anybody else wanna use it) needs.

I hope you guys/gals can help me.

S. Stratmann

Stefan Stratmann
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    Why not use a live system with persistence (ie. you can install applications, updates & they'll be there when you next use the live media)? You can also install to a thumb-drive (which achieves the same thing (faster, no squash/cow), though this is a little more work, esp. for some releases). – guiverc Apr 29 '21 at 10:41
  • Thank you for your responds, live media, thats what i need. how do you edit it? because you get a squashfs file, i can unsquash it, how do you install apps on that file system. for example chrome browser? you get an .deb file i can exacute it, but i cant seem to get t working. or am i in the wrong direction? – Stefan Stratmann Apr 29 '21 at 11:25
  • I use mkusb to create my live media with persistence, Ubuntu wiki page on persistence can be read at https://help.ubuntu.com/community/mkusb & https://help.ubuntu.com/community/mkusb/persistent though it's covered here in questions too, eg. https://askubuntu.com/questions/1203053/live-ubuntu-usb-with-persistent-storage-using-mkusb – guiverc Apr 29 '21 at 11:33
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    Have a look at using an image file for making a custom installation: https://askubuntu.com/questions/1300540/how-to-duplicate-a-ubuntu-system-for-distribution The resulting USB can be Persistent or a Full install. – C.S.Cameron Apr 30 '21 at 03:06
  • Hey Guys, i have a little question more. i have created it with mkusb, i used the ubuntu donwload. only he tells me right before installing everything, the iso you use is not debian nor ubuntu. is that a common issue or could i rather use another image? i used the original image. – Stefan Stratmann Apr 30 '21 at 14:10
  • I have tried quite a few non Debian based OS with mkusb. most of them have worked. Give it a try, worst that can happen is that it doesn't work. – C.S.Cameron Apr 30 '21 at 14:44

1 Answers1

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A very detailed procedure on how to create a custom live CD is available on Github. It shows how to set up a chroot eenvironmemnt, in which you configure and build your live system, and how to create a bootable ISO of it.

There used to be software, Ubuntu Kit Customization kit. This made it a very easy task. Unfortunately, that project was discontinued.

vanadium
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