Re: booting the kernel when ia32 processor is already in protected mode
Keith Owens (kaos@ocs.com.au)
Fri, 20 Aug 1999 07:13:20 -0700
On Thu, 19 Aug 1999 22:27:10 -0700,
Lincoln Dale <ltd@interlink.com.au> wrote:
>i've got a computer that has (already built-in) an impressive bootstrap-loader.
>it can load an image from disk, network (rcp, ftp, tftp) or from flash.
>
>it can load a Linux kernel (provided it is a raw ELF file, such as that
>normally kept in arch/i386/boot/compress/bvmlinux), and execute at the
>appropriate place (0x100000).
>
>unfortunately, the processor is already in protected-mode by the time the
>linux kernel starts running. this is where things 'stop'.
At a recent BALUG talk, San Mehat, of VA Linux Systems (sorry, no email
address) mentioned that he had a similar problem, a bootstrap loader
that left the system in protected instead of real mode. The solution
was to do a soft reboot pointing at the kernel code, but that assumes
your RAM is not cleared. He also mentioned that he was looking for a
general solution.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/