QEMU and RTEMS problem on Ubuntu

Roxana Leontie roxana.leontie at gmail.com
Tue Jul 14 17:01:07 UTC 2009


Ralf the difference between Ubuntu and Fedora (grub2 vs grub[1]) is not
something that I have to worry about. I am using a rtems-boot.img from Chris
Johns that has the grub version 1.96 on it and can read the ext2 file
system.

This is what I have tried so far:

 1.- removed all hdd's except the vfat partition as hda(then as hdb) - same
result
 2.- booted from a linux image ( the qemu small image ),then copied
rtems-grub.cfg to the root of the filesystem. After that I booted again from
the rtems floppy, hoping it will find the rtems-grub.cfg there. (no result)
 3. - booted with hda as the linux image( a valid image - rather our fake
zero-ed image) and hdb as the fat local directory. Still the same delay.
 4. - booted from the linux small image and mounted the hdb vfat partition.
All was good. Except ls listed the rtems-grub.cfg as rtems-gr.cfg. Might
this be the cause ?

Any other toughts?


Thanks,

Roxana

On Tue, Jul 14, 2009 at 1:05 AM, Ralf Corsepius <ralf.corsepius at rtems.org>wrote:

> Roxana Leontie wrote:
>
>> Hi all,
>>
>> I have been trying to set up a new development environment, because my
>> previous one (I was working on a VM that had fedora 10 in it) was getting
>> kind-of slow. I choose ubuntu just because I already had it as a dual boot
>> on my PC.
>>
>> So here it is my problem:
>> I am using
>> - kernel: Linux 2.6.28-13-generic
>> - qemu version: 0.10 or 0.9.1 (both of them create the same problem on
>> ubuntu)
>> - grub version: GNU GRUB  version 1.96
>> When running an rtems example (say hello - from pc386) i am seeing a 1-2
>> minutes delay before the grub> prompt appears ( since I am  seeing
>> "Welcome
>> to GRUB!" until i see the  "GNU GRUB  version 1.96" and the grub> prompt)
>>
>> Had anyone else encountered this problem before? Any
>> solutions/suggestions?
>>
> AFAICT, the major difference between Ubuntu and most other linux distros is
> Ubuntu using grub2 (c.f. above: grub-1.96) instead of grub[1]
> (e.g.: Fedora 11: grub-0.97).
>
> So, I am inclined to think you might either have tripped over a bug in
> grub2 or a grub/grub2 incompatibility.
>
> Ralf
>
>
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