help: failed to use qemu
Joel Sherrill
joel.sherrill at OARcorp.com
Tue Feb 10 18:43:12 UTC 2009
I am happy to report that the if_fxp (Intel i8255x driver)
works with QEMU with any of the following NIC models
specified:
i82551
i82557b
i82559er
That is in addition to the ne2k_isa we historically used.
That leaves pcnet, ne2k_pci, pcnet, and rtl8139 as the
remaining NICs simulated for i386 qemu that we
don't support.
--joel
Joel Sherrill wrote:
> Daron Chabot wrote:
>
>> Joel Sherrill wrote:
>>
>>
>>> 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?
>>>
>>>
>> Nope. Sorry. I haven't found the magic qemu-cmdline/network-config combo
>> yet. It has been awhile since I was playing around with Qemu and
>> networked RTEMS apps, but I recall that one of the problems for me was
>> that mac os x has no concept of tun/tap interfaces (at least not
>> natively; there is a third-party driver, but I had no luck with it).
>>
>> I'll revisit things tonight and see if I figure anything out.
>>
>>
>>
> I can run networked applications just not after using tftp/bootp.
> I have to boot them from a floppy.
>
> I am curious if the Intel FXP driver works on qemu. :)
>
>>> 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
>>>
>>>
>>
>>
>
>
>
--
Joel Sherrill, Ph.D. Director of Research & Development
joel.sherrill at OARcorp.com On-Line Applications Research
Ask me about RTEMS: a free RTOS Huntsville AL 35805
Support Available (256) 722-9985
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