From: "H. Peter Anvin" <hpa@zytor.com>
To: bbpetkov@yahoo.de
Cc: Xudong Guan <xudong.guan@gmail.com>,
linux-kernel@vger.kernel.org, Chuck Ebbert <cebbert@redhat.com>
Subject: Re: 2.6.23-rc1: no setup signature found...
Date: Wed, 01 Aug 2007 10:36:07 -0400 [thread overview]
Message-ID: <46B09A57.8000403@zytor.com> (raw)
In-Reply-To: <20070801043835.GA4676@gollum.tnic>
Borislav Petkov wrote:
>
> Breakpoint 4, 0x00040200 in ?? ()
> 1: x/i ($cs << 4) + $eip 0x40300: lea (%si),%dx
> (gdb) c
> Continuing.
>
> if i do delete here, it loads the second stage of grub and continues to load the
> kernel. Is there another way to land at the jmp instruction instead of poking
> blindly, maybe disassemble something parts of the initial code. \me reading
> grub-docs...
>
If you do "delete" without a breakpoint number, you're deleting all
breakpoints. I just experimented with grub, and it looks like it should
break at 0x90200, so just set that breakpoint and none of the others.
-hpa
next prev parent reply other threads:[~2007-08-01 14:36 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-24 11:26 2.6.23-rc1: no setup signature found Borislav Petkov
2007-07-26 15:08 ` Xudong Guan
2007-07-26 15:19 ` H. Peter Anvin
2007-07-26 15:26 ` Xudong Guan
2007-07-26 15:43 ` H. Peter Anvin
[not found] ` <46A8C7BA.3040008@zytor.com>
[not found] ` <20070726162439.GA13387@xguan-laptop>
[not found] ` <46A8CB3F.7040207@zytor.com>
[not found] ` <20070726171609.GA16236@xguan-laptop>
2007-07-26 17:55 ` H. Peter Anvin
2007-07-26 16:30 ` Borislav Petkov
2007-07-26 16:36 ` Xudong Guan
2007-07-26 16:59 ` Borislav Petkov
2007-07-26 17:09 ` Xudong Guan
2007-07-26 18:12 ` H. Peter Anvin
2007-07-27 1:36 ` Borislav Petkov
2007-07-27 4:31 ` H. Peter Anvin
2007-07-27 15:51 ` Chuck Ebbert
2007-07-29 8:51 ` Borislav Petkov
2007-07-29 9:24 ` Xudong Guan
2007-07-29 10:37 ` Borislav Petkov
2007-07-29 13:50 ` H. Peter Anvin
2007-07-29 19:15 ` Borislav Petkov
2007-07-30 14:05 ` H. Peter Anvin
2007-07-30 18:53 ` Borislav Petkov
2007-07-30 20:46 ` H. Peter Anvin
2007-08-01 4:38 ` Borislav Petkov
2007-08-01 12:41 ` H. Peter Anvin
2007-08-01 14:36 ` H. Peter Anvin [this message]
2007-08-02 5:13 ` 2.6.23-rc1: no setup signature found... SOLVED! Borislav Petkov
2007-08-02 17:41 ` H. Peter Anvin
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