On Thu, Oct 09, 2008 at 12:23:25PM +0200, Clemens Helfmeier wrote: > Hi everybody, > > I am trying to access the qemu cdrom drive (atapi) with grub2. Unfortunately, > qemu crashes with "triple faults". A bit of google revealed that this would > also > reboot a real machine, so qemu has reasons for it. > > This always happens at the same location of code (0xb3a0 in my case) but the > output bofore the crash is not always the same. I don't know if output is > delayed either in qemu or in grub, does anyone know that? > > I also wonder why the qemu cdrom drive is not detected as removable nor as > cdrom > drive: > > grub> ls (ata2)/ > ../disk/ata.c:798: opened device ata0 successfully. > ../disk/ata.c:803: using block size 0x200 for device ata0. > ../disk/ata.c:816: closed device ata0,1. > ../disk/ata.c:920: opening ATAPI dev `ata2' > ../disk/scsi.c:261: dev opened > ../disk/scsi.c:270: inquiry: devtype=0x00 removable=0 > qemu: fatal: triple fault
This code is known to work on qemu AFAIK. Is that pristine SVN, or your patched version? > How can i debug the running grub2 in the qemu machine? Is there an easy way > with > gdb? Did someone already get the ATAPI code working somehow? Where can i find > information on how to access atapi/ata drives? The wiki has some info on that IIRC -- Robert Millan The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and how) you may access your data; but nobody's threatening your freedom: we still allow you to remove your data and not access it at all." _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
