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Re: What does your OS look like? (Screen Shots..)
Posted: Sun Jan 25, 2026 2:28 pm
by User2026
Part 2:
Just in case, I'll leave the source code for my bootloader. (Google Translate)
Code: Select all
org 0x7C00
;FAT12
jmp short inicio
nop
nombre_mundial db 'CEOS '
tamaño_byte dw 512
cantidad_sector dw 1
cluster db 1
sectores_reservados dw 6
tabla_archivos db 2
direcotorio_raiz dw 224
total_de_sectores dw 2880
descriptor_de_medio db 0xF0
sectores_por_fat dw 9
numero_de_sectores_por_cara dw 18
numero_de_cabezas dw 2
sectores_ocultos dd 0
sectores_grandes dd 0
inicio:
jmp pila
texto:
bienvenida db 'Bienvenido a CEOS 0.0.1 RE...', 0x0D, 0x0A, 0
;Stack
pila:
xor ax, ax
mov ds, ax
mov es, ax
mov ss, ax
mov sp, 0x8000
cld
mov si,bienvenida
mov ax,0xB800
mov es,ax
xor di,di
calls;
call video
call disk
jmp $
;storage sector
disk:
Push ax
mov ax,0x0000
mov es,ax
mov bx,0x9000
mov di,5
leer:
mov ah,0x2
mov al,5
mov ch,0
mov cl,2
mov dh,0
mov dl,0x00
int 0x13
jnc Odisk
errors:
xor ax, ax
int 0x13
dec di
jnz leer
jc muerte_silenciosa
muerte_silenciosa:
cli
HLT
POP AX
ret
Odisk:
Pop ax
jmp 0x0000:0x9000
Video mode (BIOS)
video:
push ax
push si
push bx
bucle010:
lodsb
or al, al
jz .final
mov ah,0x0E
mov bh,0
int 0x10
jmp bucle010
.final:
pop bx
pop si
pop ax
ret
times 510-($-$$) db 0
dw 0xAA55
Thanks for reading
Re: What does your OS look like? (Screen Shots..)
Posted: Fri Mar 13, 2026 9:54 am
by jmkerdal
I'm starting to show you what's working.
My goal is to deploy an OS in a DataCenter and start an HTTP/HTTPS server.
First reply on some HTTP request. HTTPS in progress:
- Capture d'écran 2026-03-13 153937.png (10.16 KiB) Viewed 11395 times
TAURI OS 64 bits
Re: What does your OS look like? (Screen Shots..)
Posted: Fri Mar 27, 2026 8:46 am
by jmkerdal
First step: Boot
Hand made bootloader. He find FileSystem entry, load the kernel, change vidéo mode and start the kernel.
Re: What does your OS look like? (Screen Shots..)
Posted: Sat Mar 28, 2026 5:55 am
by brain
Right now, I've started writing a game inside my os, using the os's custom basic dialect. entirely software rendered. feedback welcome! it's inspired by R-Type.
Re: What does your OS look like? (Screen Shots..)
Posted: Wed Apr 08, 2026 2:40 pm
by sortie
Today my server running my operating system received an email from gmail and I sent a reply :D
Re: What does your OS look like? (Screen Shots..)
Posted: Fri Apr 10, 2026 7:41 pm
by klange
sortie wrote: ↑Wed Apr 08, 2026 2:40 pm
Today my server running my operating system received an email from gmail and I sent a reply :D
Getting Gmail to accept your mail is an accomplishment in any OS!
Re: What does your OS look like? (Screen Shots..)
Posted: Sun Apr 12, 2026 7:36 am
by ezheng
MOS is a hobby 32-bit x86 monolithic kernel aimed at running old Linux userspace, especially a Red Hat 9 era environment. The project has grown beyond basic boot and shell support into a fairly complete Unix-like system with ELF loading, virtual memory, signals, ext2/4-backed filesystems, /proc, /dev, PTYs, sockets, TCP/IP via lwIP, and enough Linux compatibility to run a graphical stack.
Re: What does your OS look like? (Screen Shots..)
Posted: Mon Apr 13, 2026 6:28 am
by brain
Just finished adding support for Acorn ADFS and DFS images as mountpoints. This was something that was on the card since 2009, finally got around to it! These are ancient filesystems from the 80s with maximum size of 640k, usually found on 5.25" floppy disks.
Also now have support for FRED where available! I can only test this in SIMICS as i don't have an intel CPU that is new enough.
Re: What does your OS look like? (Screen Shots..)
Posted: Mon Apr 13, 2026 4:34 pm
by sortie
klange wrote: ↑Fri Apr 10, 2026 7:41 pm
sortie wrote: ↑Wed Apr 08, 2026 2:40 pm
Today my server running my operating system received an email from gmail and I sent a reply :D
Getting Gmail to accept your mail is an accomplishment in any OS!
Hahaha, yes! My email did go into my spam folder, as it should. Although I had set up a MX record, and the SPF record allowed my OS to send from this server, and the DMARC record technically passed (SPF pass, DKIM fail) -- but I had not ported opendkim yet, so the email was not signed and DKIM failed, and I had also not registered this test domain with any whitelists. Yeah.. hahaha I've been running my own email stack on Linux for a couple years now and it's actually able to email gmail with a perfect score after I configured everything correctly, but oh my, doing so was an adventure.
Re: What does your OS look like? (Screen Shots..)
Posted: Mon Apr 13, 2026 5:04 pm
by BenLunt
brain wrote: ↑Mon Apr 13, 2026 6:28 am
Just finished adding support for Acorn ADFS and DFS images as mountpoints. This was something that was on the card since 2009, finally got around to it! These are ancient filesystems from the 80s with maximum size of 640k, usually found on 5.25" floppy disks.
Hi,
I have always been a fan of file systems. I have implemented many in various stages of completeness. However, I don't remember reading about ADFS. Do you have an image file formatted with this filesystem for someone to examine? I found various documents describing its format. Do you have a suggestion on which document best explains its on-disk format?
Thank you,
Ben
-
https://www.fysnet.net/leanfs/index.php
Re: What does your OS look like? (Screen Shots..)
Posted: Tue Apr 14, 2026 1:44 pm
by brain
BenLunt wrote: ↑Mon Apr 13, 2026 5:04 pm
brain wrote: ↑Mon Apr 13, 2026 6:28 am
Just finished adding support for Acorn ADFS and DFS images as mountpoints. This was something that was on the card since 2009, finally got around to it! These are ancient filesystems from the 80s with maximum size of 640k, usually found on 5.25" floppy disks.
Hi,
I have always been a fan of file systems. I have implemented many in various stages of completeness. However, I don't remember reading about ADFS. Do you have an image file formatted with this filesystem for someone to examine? I found various documents describing its format. Do you have a suggestion on which document best explains its on-disk format?
Thank you,
Ben
-
https://www.fysnet.net/leanfs/index.php
sure! ADFS is the "advanced disk filesystem". it is a double sided double density disk format usually found on 5.25" disks with the whole disk having a total storage space of 640k, with a maximum of 47 entries per directory. it uses free space extents to manage disk space and files must be contiguous.
disk images are interleaved with each consecutive 256 byte sector being a different side.
here's some docs on it
http://www.cowsarenotpurple.co.uk/bbcco ... /adfs.html
back in the day I had a big thick ring bound manual with official documentation but I lost it years ago.
also be aware there's a second disk format, earlier and simpler called DFS, which doesn't have directories as such.
it's hard to find docs on either because it's drowned out by microsoft docs about active directory and distributed file system for windows server...
if you want to chat about it just DM me, I'm happy to share knowledge!
Re: What does your OS look like? (Screen Shots..)
Posted: Tue Apr 14, 2026 1:48 pm
by brain
also you can find tons of public domain disk images on 8bs.com
any labelled with "A", 640k in size are ADFS, image file extension .adl. 2D means double sided DFS and 1D means single sided DFS. there are also 40 track variants of both but I don't support those yet.
https://8bs.com/catalogue/tbi.htm
and if you're curious feel free to browse or make use of my filesystem code. I support retrofs, fat32, ufs, iso9660, adfs and DFS.
https://github.com/brainboxdotcc/retro- ... ter/src/fs
Re: What does your OS look like? (Screen Shots..)
Posted: Wed Apr 15, 2026 6:28 pm
by BenLunt
Thank you for the information.
Mostly for interest's sake, I am adding ADFS to
my image viewer.
In implementing my own code, I found an error in yours and have submitted a
github issue as to not flood this thread with replies. I am sure you don't mind. :-)
Again, thank you for the information,
Ben
Re: What does your OS look like? (Screen Shots..)
Posted: Mon Apr 20, 2026 6:32 am
by jmkerdal
Here's an update on the Tauri OS project.
It runs in an OVH datacenter and supports HTTP/HTTPS, SSH, FTP, and a wide range of network tools.
It also supports many other great features for managing a web server.
Work is underway to develop a PHP interpreter.
It can also be installed on a Lenovo PC via a USB drive; that's pretty neat, and as you can see, it doesn't take up much space.
Re: What does your OS look like? (Screen Shots..)
Posted: Mon Apr 20, 2026 7:27 pm
by klange
