help: failed to use qemu

[Joel Sherrill]

Daron Chabot wrote:
> On 10-Feb-09, at 7:02 AM, PowerMan wrote:
>
>   
>> I do it as the follow steps:
>> 1. download QEMU from  http://bellard.org/qemu/qemu-0.9.1-i386.tar.gz
>> 2. install it
>>     tar xfz qemu-0.9.1-i386.tar.gz -C /
>> 3. download rtems floppy image from ftp server :
>>     ftp://ftp.rtems.com/pub/rtems/qemu/i386-pc/rtems-boot.img
>> 4. download ftp://ftp.rtems.com/pub/rtems/qemu/i386-pc/rtems-grub.cfg
>>     and copy it to my root directory /
>> 5. mkdir /capture
>>    cp hello.exe /capture/capture.exe
>> 6. run qemu
>>     qemu -fda rtems-boot.img -boot a -hda /dev/sda
>>
>> but the capture.exe (which is actually helloworld I build with  
>> rtems-4.7.3) does not run as I excepted.
>> This capture.exe could run on my host by modifying /boot/grub/menu.lst
>> I type the following commands in grub:
>> grub> set root=(hd0,0)
>> grub> set kernel=/capture/capture.exe
>> grub> boot
>>
>> then grub told me:
>> error: no loaded kernel
>>
>> I type the following commands in grub:
>> grub> set root=(hd0,0)
>> grub> multiboot /capture/capture.exe
>>
>> then grub told me:
>> error: Couldn't open file
>>
>> Could somebody help me?
>>
>> My host is openSUSE 11.1, my disk information is:
>> /dev/sda1              3091312    516528   2417752  18% /
>> udev                    252876      5428    247448   3% /dev
>> /dev/sda8              3605268    153972   3268160   5% /home
>> /dev/sda7              1130540    221192    851920  21% /tmp
>> /dev/sda9              6412052   3541120   2545216  59% /usr
>> /dev/sda6              1130540    193556    879556  19% /var
>>
>> I type the following commands in grub:
>> grub> ls
>>
>> then grub told me:
>> (fd0) (hd0) (hd0,0) (hd0,4) (hd0,5) (hd0,6) (hd0,7) (hd0,8)
>>
>> they didn't match my host disk partition number
>>
>>     
>
>
> Grub is not a requirement for using Qemu, and may actually complicate  
> the matter.
>
> I've had success with variations on the following command:
>
> 	qemu -no-reboot -m 128 -boot n -tftp /path/to/exe/parent/directory - 
> bootp /yourRtemsApp.exe -serial stdio
>   
I can make this work for hello and ticker but not for networked
applications.  Do you have a way to run networked applications
this way?

I am trying to have some demos for a GSoC/RTEMS presentation
on Monday at University of Tennessee at Chattanooga and was
actually trying this out today. :)

--joel
>
> -- dc
>
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>   


-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel.sherrill at OARcorp.com        On-Line Applications Research
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