Re: [Qemu-devel] Win95 Image does not boot, how can I debug where I am getting stuck

[Leah Cunningham]

Final update on this.  I was able to pull another disk image that is
working fine.  The main difference was that I used 512k bs for the dd as
opposed to 1024k (what I had done the first time).  I just thought I'd
throw that out in case anyone else ever runs into something like this.

Thanks again,
Leah

On Wed, 2005-10-12 at 20:08 -0400, Leah Cunningham wrote:
> On Wed, 2005-10-12 at 07:34 +0200, octane indice wrote:
> > > This probably isn't exactly the right question for a
> > > development mailing
> > > list, but the user-forumns did not seem to exist, so I hope
> > > you will
> > > forgive me or tell me where to ask a question like this.
> > > 
> > > I have an image of a Window's 95 hard disk, dd'd directly off
> > > the disk itself.  I can mount the image loopback:
> > > 
> > >  /tmp/win95 on /mnt type vfat (rw,loop=/dev/loop5)
> > > 
> > did you dd the complete disk, or juste the partition?
> 
> I did dd the entire disk, but the partition table on it looks pretty
> goofy, so I wonder if I didn't get the boot sector and partition table
> in the image correctly.
> 
> > > I do not seem to be able to boot the image with qemu, trying
> > > with various versions, but I have no idea how to proceed
> > > with finding out what is wrong.  How can I debug what is
> > > happening?  Would there be a boot loader error?  
> > > 
> > Use tomsrtbt (www.toms.net/rb, and find the tomsrtbt.raw
> > floppy image).
> > 
> > Boot with
> > qemu -fda tomsrtbt.raw -hda win95.img -boot a
> > then try to do a 
> > fdisk -l /dev/hda
> > if you see your partition, mount it. If everything is in place (the
> > boot flag, and so on) this is a win95 boot issue. (go to
> > www.bootdisk.com to join a boot floppy for win95)
> > If fdisk complains, the win95.img is not a harddisk image.
> 
> That's a clever way to look at it, and it's clearly not a normal
> partition table, so I think that's a good clue for what I need to do to
> look into this.  I'm sorry I didn't look at that more closely before
> sending this message, now I feel foolish, I was just so sure that the
> image was correct.
> 
> I'll try to recreate the image with a dos boot sector and such and see
> how it goes from there.  Thanks again to everyone for all the help.
> 
> Leah
> 
-- 
Leah Cunningham : d416-585-9971x692 : d416-703-5977 : m416-559-6511
Frauerpower! Co. : www.frauerpower.com : Toronto, ON Canada