[syslinux] failed when boot the kernel image on the harddisk from syslinux on a floppy

[H. Peter Anvin]

Hu Jia Yi wrote:
> Thanks for responses.
> 
> I use GRUB as my bootloader in my hard disk now. I have a Windows in
> sda1, Ubuntu in sda3.
> If I want to install extlinux to boot Ubuntu, should I follow the steps
> below?

They sound right to me.

> 1. in Ubuntu, go to extlinux folder, run command
>     ./extlinux --install /boot
> 2. create an extlinux.conf in/boot 
> 3. cd ../mbr
> 4. cat mbr.bin > /dev/sda (or use dd if=mbr.bin of=/dev/sda bs=404
> count=1)
> 5. restart PC.
> 
> The extlinux.txt says I need make the syslinux partition active. I know
> Windows partition needs activation. Is it necessary to turn an ext2/ext3
> partition to active, too? If it is, how?

Yes it is.  You can use fdisk, sfdisk or parted to do that.

	-hpa