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It looks like all the answers here are about discontuinued software and I would like to know how to do this in 20.10

captaincooler
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    I agree, all the Linux ISO remastering apps seem to have been abandoned. Do you really need an ISO? An image file will do almost everything an ISO will do.and is much simpler. set up a Ubuntu disk as you want it and create an image with Disks. You can then use Rufus, Etcher, mkusb, etc to flash the installed system to another drive. An example of using such an image is here: https://askubuntu.com/questions/1217832/how-to-create-a-full-install-of-ubuntu-20-04-to-usb-device-step-by-step/1291882#1291882 – C.S.Cameron Dec 09 '20 at 12:04
  • OK yeah this shows I don't know what I'm doing in terms of imaging, but I'm still going to keep an eye on this question to see if anyone has further insight on this topic. – captaincooler Dec 09 '20 at 12:36
  • Just use gnome-disks. Click on the drive, click on the gears icon, create a partition image, and you're done. You have a .img file that can be burned/written just like an .iso file. If you want, you can even convert the .img to .iso, but there's probably no need to do so. – KGIII Dec 09 '20 at 14:30
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    @KGIII Making an image of a partition will not copy the bootloader, for that you need to make an image of the whole disk, that requires the icon with three lines on the upper right of Disks. – C.S.Cameron Dec 10 '20 at 01:51
  • @C.S.Cameron Thanks, I forgot about that bit. It has been a while since I've gone through the process. I should probably do it again on a current Ubuntu just to refresh my memory. – KGIII Dec 10 '20 at 01:54
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    @KGIII I have just had some success creating a partition image as you suggest and then flashing it to a partition on a different drive and booting it. First I created a bios_grub partition then a boot,esp partition, (https://askubuntu.com/questions/1217832/how-to-create-a-full-install-of-ubuntu-20-04-to-usb-device-step-by-step/1217839#1217839). After flashing the image file to the new drive I reinstalled GRUB and it booted. I guess there is no need to overwrite the whole drive. – C.S.Cameron Dec 10 '20 at 08:42
  • @captaincooler I have not tried SystemBack ,but have heard that it still works four years after being abandoned: https://www.linuxbabe.com/ubuntu/install-systemback-ubuntu-18-04-bionic-18-10 – C.S.Cameron Dec 11 '20 at 09:10
  • I use clonezilla – pierrely Dec 14 '20 at 04:41
  • I'm trying to create a customized installation USB Stick (ie: customized installation iso with prefilled answers for unattended install). This used to be rather easy with previous ubuntu versions (like filling some pressed using debian installer format). But I don't have a clue how to do this starting with the current (Ubuntu 20.10 server) installation disk. Any hint @C.S.Cameron ? – kriss Apr 02 '21 at 02:08
  • @kriss, Sorry, I have no experience with unattended install. I should probably learn more about it. – C.S.Cameron Apr 02 '21 at 12:43
  • @C.S.Cameron: I'm slowly figuring it out. I probably should contribute some Q/A if I get it to work. – kriss Apr 02 '21 at 12:53
  • @kriss Yes, please do, I have seen quite a few questions about unattended install on Ask Ubuntu. – C.S.Cameron Apr 02 '21 at 13:03
  • Systemback does still work. So do Clonezilla and Distroshare. There are also paid options. See https://raywoodcockslatest.wordpress.com/2021/08/17/linux-v2p/#ILa – Ray Woodcock Aug 22 '21 at 19:53

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