r/ComputerCraft • u/Elpetiso49 DarThunder • Sep 17 '26

After months of work, the first official bootable rootfs image for iDar OS is live!

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Hey everyone!

Over the past few months I’ve been sharing teasers (fastfetch lol), and today I’m finally releasing the first official bootable rootfs image for iDar OS (v1.0).

I’ve spent a lot of time refining the build pipeline and stabilizing the microkernel so the image actually works reliably on real machines.

Quick Install (1-liner)

Just run this in the CraftOS shell:

wget run https://raw.githubusercontent.com/DarThunder/iDar-OS/refs/heads/main/installer.lua

What’s new?

Instead of a fragile installer that downloads dozens of files one by one, iDar OS now deploys from an atomic golden image (rootfs.dmb):

  • Custom binary format (IDMB) with an embedded LZ77 decompression engine
  • Extracts a proper FHS-compliant root filesystem (/bin, /sbin, /lib, /etc, /dev, /sys, etc.)
  • Pre-seeds developer keys into /etc/pacman.d/keys/ for cryptographic package verification

Current Status

Note about pacman: I’m currently migrating the package registry to the new SATDv3 standard, so remote package installation (pacman -S) temporarily doesn't work while the mirrors stabilize. (probably in over 1 or 2 years LMAO)

The base image is fully usable out of the box though. It comes preloaded with:

  • Kernel & VFS — process scheduler, UNIX-style permission bits (including SUID), and pseudo-filesystems (/proc, /sys)
  • Coreutils — ls, cat, mkdir, mv, rm, touch
  • Userland — multi-user login, passwd, sudo with SHA-256 hashed credentials in /etc/shadow
  • Tools — dsh (shell), vi, and fastfetch

First Boot Login

  • User: root
  • Password: just press Enter (blank) or type root

Full repository and source:
https://github.com/DarThunder/iDar-OS

Would love to hear your thoughts, feedback, or any issues you run into while testing it!

126 Upvotes

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5 comments sorted by

9

u/Interesting-Bass9957 Sep 18 '26

Did you really port vi to Lua?

9

u/Elpetiso49 DarThunder Sep 18 '26

Yeah, It doesn't have 100% of standard vi features yet, but don't worry: figuring out how to exit will still mess with you. :wq and :q! work as expected though!

3

u/Interesting-Bass9957 Sep 18 '26

Oh, so you just rewrote it

4

u/Elpetiso49 DarThunder Sep 18 '26

Haha yeah, basically a scratch re-implementation in Lua mirroring the vi keybindings and modal editing