manojsonje / mini_bootloder_to_print_name

minimal bootloader which prints the name after Booting

MINIMAL BOOTLOADER WHICH PRINTS MY NAME & ROLL NUMBER ON SCREEN

MCA ROLL NO :- 16155 Name :- Manoj Devidas Sonje

PLEASE FOLLOW GIVEN INSTRUCTIONS

To Show Name and Roll Number on booting screen from bootsector of secondary device. follow instructions. 1 - first step is to make iso image of bootcode i.e- bootloader run below command in terminal nasm -f bin bootloader.asm -o bootloader.iso we can also make bootloader.img by above command just by replacing bootloader.iso by bootloader.img

2 - to check our iso is correct we should run bootloader.iso with help of qemu(vertual machine). to check iso first ensure that qemu-system-x86_64 is installed .

3 -A] run below command to test our bootloader qemu-system-x86_64 bootloader.iso after running above command you will get screen shown above

B]also we can use seconadary device to do this – first of all make secondary device bootable.

Commands to make secondary device bootable(LINUX)

   ```  
        sudo umount /dev/sdX 
        sudo dd if=/path/to/boot.iso of=/dev/sdX bs=4M && sync 
   ```

where sdX is your usb device (this can be verified with lsblk). The sync bit is important as dd can return before the write operation finishes.