final.iso insted of flopyboot.img

[machka]

hi all, my computer does not have any floppy device so i want to create .iso image to test my own os. so anybody know how could i create an iso image from two files like bsect and sect2.

regards

[Combuster]

This question and others are answered on the wiki: Bootable CD - please look there first before posting.

[machka]

so my computer does not create bootable floppy from write.c due to floppy drive doesn't existed so could you help me to create floppy.img from bsect.o and sect2.o files.

regards

[neon]

If Windows, look into using VFD.

[machka]

no i use it in ubuntu 10.4 this part of the code "floppy_desc = open("/dev/sdc1", O_RDWR);" is wrong because my usb floppy is mounted on sdc but code use fd0 so i change write.c to write usb floppy but it isn't working. so i decide to create final.img in order to write it on a floppy disk. but i cant create img file from two files like bsec and sect2. my write.c code is below;

regards

#include <sys/types.h> /* unistd.h needs this */
#include <unistd.h> /* contains read/write */
#include <fcntl.h>

int main()
{
char boot_buf[512];
int floppy_desc, file_desc;

file_desc = open("./bsect", O_RDONLY);

read(file_desc, boot_buf, 510);
close(file_desc);

boot_buf[510] = 0x55;
boot_buf[511] = 0xaa;

floppy_desc = open("/dev/sdc1", O_RDWR);

lseek(floppy_desc, 0, SEEK_SET);
write(floppy_desc, boot_buf, 512);

file_desc = open("./sect2", O_RDONLY);
read(file_desc, boot_buf, 512);
close(file_desc);

lseek(floppy_desc, 512, SEEK_SET);
write(floppy_desc, boot_buf, 512);

close(floppy_desc);
}

[montrom]

Hope this helps: http://ubuntuforums.org/showthread.php?p=2012333

[machka]

ok i solve it.

thanks for help

[machka]

so the solution is floppy_desc = open("final.img", O_RDWR); but you have to create final.img before execute the ./write

otherwise floppy_desc equals -1

regards