mOS in Ubuntu

[sxmxr]

Hi @MQuy, I and my teammates have successfully installed GCC Cross-complier using that Wikipedia page which was mentioned in one of the earlier issues. (https://wiki.osdev.org/GCC_Cross-Compiler) I have installed i686-elf-gcc successfully(Screenshot-1) Now while installing the whole project, using the mentioned shell scripts in the read.me, I got error like, "./create_image.sh: line 6: hdiutil: command not found".(Screenshot 2). My host OS is Windows 10 and I'm using Ubuntu 20.04 within the virtual box.

[MQuy]

@sxmxr if you check out master branch and run like this I think it will work

$ cd src
$ ./create_image.sh
$ ./build qemu iso

[MQuy]

you shouldn't need to change anything, I changed create_image.sh to support ubuntu if you pull master.

To build toolchain

$ cd src
$ cd toolchain && ./build.sh

Run

$ cd src
$ ./create_image.sh
$ ./build.sh qemu iso

[sxmxr]

@MQuy Thank you for your response. ./create_image.sh was compiled successfully but while running "./build qemu iso" command I'm getting this error.

[MQuy]

can you send a screenshot if you run the command below

cd src/kernel && make clean && make

[sxmxr]

@MQuy I compiled that command and here what I got :

[MQuy]

hum, what is your ubuntu version? my guess is the latest gcc have breaking changes, could you try with gcc 9.x

[sxmxr]

hum, what is your ubuntu version? my guess is the latest gcc have breaking changes, could you try with gcc 9.x

@MQuy My ubuntu version is 20.04. So I have to make cross compiler again. Right?

[MQuy]

yes, try with gcc 9.x :)

[sxmxr]

yes, try with gcc 9.x :)

Thank you, for your response. I'll get back to you in case of any queries.

[sxmxr]

I have installed gcc 9.1 cross compiler and tried to build file in toolchain but I'm getting this error while running this command "cd toolchain && ./build.sh"

[sxmxr]

@MQuy Ubuntu isn't working for me. So I am thinking to install Mac-OS on VirtualBox and will run it. Is it possible?

[MQuy]

can you give more details about the error above? I think Ubuntu is better in long term

[sxmxr]

@MQuy Here are the steps I have followed, Please correct me if I'm wrong : 1) Followed steps of https://wiki.osdev.org/GCC_Cross-Compiler and installed GCC 9.1.0 and Binutils 2.32, so basically activated new cross-compiler. 2) Downloaded the source code of mOS and moved to src directory. 3) Then I entered this command "$ cd toolchain && ./build.sh" 4) After that I got the above error.

[MQuy]

could you try to open build.sh and modify these variables to fit in your case and run again?

PREFIX="$HOME/opt/cross"
TARGET=i386-mos
# SYSROOT cannot locate inside PREFIX
SYSROOT="$HOME/Projects/mos/src/toolchain/sysroot"
JOBCOUNT=$(nproc)

[sxmxr]

@MQuy Thank you for your response. Just to confirm, according to this (https://wiki.osdev.org/GCC_Cross-Compiler) my target variable will be TARGET=i686-elf. Right? or do I have to change target to i386-mos? P.S. I have changed the SYSROOT.

[MQuy]

No, only SYSROOT, make sure that folder exist

[sxmxr]

@MQuy Thank you for your help. ToolChain is compiled successfully. Now while compiling the "./create_image.sh" I'm getting this error.

[MQuy]

you should umount like this first

sudo umount /mnt/mos
sudo rm -rf /mnt/mos

[sxmxr]

you should umount like this first

sudo umount /mnt/mos
sudo rm -rf /mnt/mos

Yess.. I have done the same but lead to this error :/

[MQuy]

can you comment this line from ./create_image.sh and run it again

# cd ports/figlet && ./package.sh && cd ../..

[sxmxr]

@MQuy Sorry for the inconvenience I have caused. But I'm totally new to these topics and my faculty has given a project to implement a new feature in existing features. I'm planning to implement SMP and 2 level paging.

[MQuy]

no np, feel free to ask, I will answer when I am online ;)

[sxmxr]

After compiling "cd ports/figlet && ./package.sh && cd ../.."

[MQuy]

did you remove that line? you don't need that program to run

[sxmxr]

Yes, I commented it. And here is the results. 1) After compiling "./create_image.sh"

2) After compiling "$ ./build.sh qemu iso"

[MQuy]

you don't have logs folder

$ cd src && mkdir logs

[sxmxr]

@MQuy After creating it, I run that again and I got this screen.

[MQuy]

can you open another terminal

$ cd src && gdb isodir/boot/mos.bin
``
in that gdb, type c and enter

[sxmxr]

Here's the output

[MQuy]

ops, I forget it should be

target remote localhost:1234
c

[sxmxr]

Finallyyyyy!

[sxmxr]

So whenever I make changes, I have to run "$ ./build.sh qemu iso" , $ cd src && gdb isodir/boot/mos.bin, target remote localhost:1234, c" commands. Right?

[MQuy]

if you make changes to src/apps or src/libraries you have to run ./create_image.sh

[sxmxr]

Ohh, Okay. Thank you so much @MQuy for your quick responses. Now I'll analyze the whole project, and will try to implement the capstones for the project.