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I am new to kernels. I wish to build my own custom Bootable Linux ISO image myself. Can someone please help me with the right steps to do it. There are loads of information but all are distributed and difficult to follow without making errors.

I am seeing this Linux Kernel source. I understand I need to build the source, add the bootloader like Grub, add bare basic system packages and file system like GNU C++, make, etc, and then add an package manager like apt (Aptitude) before making an Linux ISO. I have seen Yokto/Toaster https://www.yoctoproject.org/software-item/toaster/ Project but unsure if I can add my own source files.

Can someone help if there is something like a builder or any tips for steps I need to follow to make an Linux ISO myself? I have been seeing methods to do it online since some time but never got this right. I wish I learnt this by shadowing someone but that may be a selfish wish.

Any help is fine.

Linux: https://www.kernel.org/ and https://github.com/torvalds/linux Boot loaders: https://www.gnu.org/software/grub/ and https://www.tecmint.com/best-linux-boot-loaders/ Aptitude: https://www.debian.org/doc/manuals/aptitude/pr01s04s02.en.html

Docs I have been seeing:

  1. UEFI bootable iso of own Linux distribution
  2. Learning how to build my own linux kernel
  3. Yokto How to easily build your own Linux Distro?
  4. Toaster https://www.yoctoproject.org/software-item/toaster/
Gary
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  • The System Rescue distro has a repo with a script which does everything you're looking for (excluding building the kernel/grub/etc - but that's a separate question). – Artem S. Tashkinov Feb 13 '22 at 03:51
  • @ArtemS.Tashkinov Please put this as a comment. I wish to upvote this answer even if my question was different. How safe is Toaster and their images for security and manipulation https://www.yoctoproject.org/software-item/toaster/ – Gary Feb 14 '22 at 04:20
  • Does this answer your question? Is it possible to install the Linux kernel alone? – Toby Speight Feb 22 '22 at 13:08
  • @ArtemS.Tashkinov I saw yocto/toaster and seems it has prebuild images. Any help with a build script. I am looking like a stupid person asking this again. I am beginner with this process if you get annoyed. Here is what I am trying to achieve: Linux Kernel + Bootloader (Grub) + Basic GNU System Utils (not busy box). I appreciate your patience. – Gary Feb 27 '22 at 03:38
  • @TobySpeight Here is what I am trying to achieve: Linux Kernel + Bootloader (Grub) + Basic GNU System Utils (not busybox). I am trying to avoid busy box and want the GNU utils. Seems linux from scratch uses busybox. Anything that I missing so I use the same scripts and get GNU System utils working? I appreciate your patience. – Gary Feb 27 '22 at 03:40
  • I am using Debian distro (sometimes Ubuntu desktop for Desktop GUI) right now in my Windows 11 WSL and/or secondly as a VM Machine. I alternate many times with both – Gary Feb 27 '22 at 03:42

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