Trying brainix for the first time

[Iwan BK]

Hello, i just try to compile brainix on my debian linux.
There is an error in compilation :

gcc -c -o bin/kernel/boot.o src/kernel/boot.S -ffreestanding -fno-
stack-protector -O0 -Iinc -Iinc/lib -march=i386
cc1: error: unrecognized option `-fno-stack-protector'
make: *** [bin/kernel/boot.o] Error 1.

I use gcc 3.3.6.

iwan@shiningmoon:/data/OS/brainix/tes-brainix$ gcc --version
gcc (GCC) 3.3.6 (Debian 1:3.3.6-15)



When i remove the '-fno-stack-protector' from the GNUMakefile,
compilation is success.
But, when i try to running brainix on bochs, Bochs get panic. Here is
the core dump from bochs

00000000000i[ ] Bochs x86 Emulator 2.3
2 00000000000i[ ] Build from CVS snapshot on August 27, 2006
3 00000000000i[ ] System configuration
4 00000000000i[ ] processors: 1 (cores=1, HT threads=1)
5 00000000000i[ ] A20 line support: yes
6 00000000000i[ ] APIC support: yes
7 00000000000i[ ] CPU configuration
8 00000000000i[ ] level: 6
9 00000000000i[ ] paging support: yes, tlb enabled: yes
10 00000000000i[ ] SMP support: no
11 00000000000i[ ] FPU support: yes
12 00000000000i[ ] MMX support: yes
13 00000000000i[ ] SSE support: 4
14 00000000000i[ ] v8086 mode support: yes
15 00000000000i[ ] VME support: yes
16 00000000000i[ ] 3dnow! support: yes
17 00000000000i[ ] PAE support: yes
18 00000000000i[ ] PGE support: yes
19 00000000000i[ ] PSE support: yes
20 00000000000i[ ] x86-64 support: yes
21 00000000000i[ ] SEP support: yes
22 00000000000i[ ] Optimization configuration
23 00000000000i[ ] Guest2HostTLB support: yes
24 00000000000i[ ] RepeatSpeedups support: yes
25 00000000000i[ ] Icache support: yes
26 00000000000i[ ] Host Asm support: yes
27 00000000000i[ ] Fast function calls: yes
28 00000000000i[ ] Devices configuration
29 00000000000i[ ] NE2000 support: yes
30 00000000000i[ ] PCI support: yes
31 00000000000i[ ] SB16 support: yes
32 00000000000i[ ] USB support: yes
33 00000000000i[ ] VGA extension support: vbe
34 00000000000i[MEM0 ] allocated memory at 0xa7b63008. after
alignment, vector=0xa7b64000
35 00000000000i[MEM0 ] 256.00MB
36 00000000000i[MEM0 ] rom at 0xf0000/65536 ('/usr/share/bochs/BIOS-
bochs-latest')
37 00000000000p[MEM0 ] >>PANIC<< ROM: couldn't open ROM image file '/
usr/share/bochs/VGABIOS-lgpl-latest'.

Any
sugestions ?

[Alex Nelson]

Hey Iwan,

(I don't know how coherent I'll be, I haven't had my morning coffee yet!)

I was the one who put those lines of code in, as I use Ubuntu linux and it uses vgabios, requires the "-fno-stack-protector" line (for more recent versions of the gcc after 4.0 if I recall correctly), etc....so I think perhaps I can take a wack at this.

On ubuntu, when installing bochs, you have to install vgabios...so I assume a similar dependency holds for Debian linux. (Actually, looking at the debian dependency, one does: http://packages.debian.org/unstable/misc/bochs).

So now it's just a matter of configuring the file /brainix/dot-bochsrc...more precisely, line 151 should be commented out (Insert a "#" symbol in front) and write in the following:
vgaromimage: file=(insert YOUR path to VGA bios here)

For ubuntu, it is installed in /usr/share/vgabios, but I don't know where the debian distro puts it...

I hope that helps!

--------
Cheers!
Alex Nelson
Hobo Extraordinaire

[Iwan Budi Kusnanto]

Hello Alex

On May 5, 9:58 pm, "Alex Nelson" <pqnel...@gmail.com> wrote:
> Hey Iwan,
>
> (I don't know how coherent I'll be, I haven't had my morning coffee yet!)
>

> On ubuntu, when installing bochs, you have to install vgabios...so I assume
> a similar dependency holds for Debian linux. (Actually, looking at the
> debian dependency, one does:http://packages.debian.org/unstable/misc/bochs
> ).

vgabios already installed. I must install bochs-x to run brainix on
bochs :)

>
> So now it's just a matter of configuring the file
> /brainix/dot-bochsrc...more precisely, line 151 should be commented out
> (Insert a "#" symbol in front) and write in the following:
> vgaromimage: file=(insert YOUR path to VGA bios here)
>
> For ubuntu, it is installed in /usr/share/vgabios, but I don't know where
> the debian distro puts it...

Same as debian

>
> I hope that helps!

Now, i can run brainix on bochs. But, the shell doesn't came out.
On screen, it just print

init hardware........ :-)
.....
[skipped]
....
0 (register) : memory ->file system
...[skipped]
12(watchdog) : floppy -> timer..


Sorry for my bad english :D

[Alex Nelson]

Hello,

Unfortunately Brainix isn't mature enough to run a shell...there are
many hurdles to overcome before we can get to that point!

That output is the latest we've come to, if I am not mistaken...I'm
sorry that it is nowhere near as advanced as Linux or even Minix, but
this is after all a hobby operating system!

If you would like to help, you are more than welcome to join our merry
crew! But sadly, we are very busy people :( (Hence why we have done
what we have so far!)

> Now, i can run brainix on bochs. But, the shell doesn't came out.
> On screen, it just print
>
> init hardware........ :-)
> .....
> [skipped]
> ....
> 0 (register) : memory ->file system
> ...[skipped]
> 12(watchdog) : floppy -> timer..

--
Cheers!
Alex Nelson
Hobo Extraordinaire

"Sing in me, Muse, and through me tell the
story
of that man skilled in all ways of contending,
the wanderer, harried for years on end..."

[Iwan Budi Kusnanto]

On May 6, 10:59 am, "Alex Nelson" <pqnel...@gmail.com> wrote:

> If you would like to help, you are more than welcome to join our merry
> crew! But sadly, we are very busy people :( (Hence why we have done
> what we have so far!)

What can i do to make this Brainix running a shell ?
Maybe you can give me some todo list :).
Do you still have intention to make improvement to Brainix ?

[Alex Nelson]

I think the place where we left off was working on mounting the root file system...but there was disagreement over what shell should be used exactly, as BASH for example is: a) bloated, b) depends on libraries. Both are not good.

I think that perhaps that the best approach for the time being is to write a toy shell that processes simple commands and work our way up to getting ASH working.

As for the to-do list, perhaps Raj would have some suggestions? (And I know you're reading this Raj!)

Do you still have intention to make improvement to Brainix ?

Well, we wouldn't be very good at our hobby if we didn't intend on improving Brainix, now would we? ;)

We're just taking a little breather for the time being...