slackware10.2光盘里的mkisofs能不能制作grub启动盘？

gem

# mkisofs -R -b BOOT/GRUB/stage2 -no-emul-boot -boot-load-size 4 -boot-info-table -o grub.iso iso
Size of boot image is 4 sectors -> No emulation
Total translation table size: 2048
Total rockridge attributes bytes: 2467
Total directory bytes: 8192
Path table size(bytes): 58
Max brk space used 42000
969 extents written (1 MB)
做好的iso不能启动进入grub

我把别人做好的grub启动盘里的所有文件原样复制过来，
# mkisofs -R -b BOOT/GRUB/stage2 -no-emul-boot -boot-load-size 4 -boot-info-table -o grub.iso iso
做好的iso也不能启动进入grub

kenjs

mkisofs -R -b BOOT/GRUB/stage2_eltorito -no-emul-boot -boot-load-size 4 \
        -boot-info-table -o grub.iso iso