No bootloader found on bootable medium
I'm currently playing with mkisofs, dd and assembly. I've created simple bootloader: BITS 16 ;------------------- ;SIMPLE BOOTLOADER ;------------------- start: mov ax, 0x07C0 mov ds, ax mov si, welcmsg call printstr mov ah, 0Eh mov al, 65 int 10h cli; hlt; printstr: pusha mov ah, 0Eh .loop: mov al, byte [ds:si] cmp al, 0 jz .end int 10h inc si jmp .loop .end: popa ret ;------------------- ;DATA ;------------------- welcmsg: db "Welcome!", 0x0D, 0x0A, 0 ;------------------- ;FILL ;------------------- times 510-($-$$) db 0 dw 0xAA55 I've compiled it on linux using NASM. After successful