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Re: [Qemu-discuss] qemu-system-arm hangs on OSX

From: Brad Smith
Subject: Re: [Qemu-discuss] qemu-system-arm hangs on OSX
Date: Tue, 30 Sep 2014 11:18:11 -0400

*sigh*  When I cut/pasted the example from that tutorial, it seems to have included "smart" quotes (and/or I actually just left out the trailing quote, as I now clearly see from the example I posted-- tres embarassing). 

Anyway, I can now boot the Debian installer. But I'm still having problems when I try to boot the Cubuietruck version of lubuntu. Specifically, it fails with a "qemu: fatal: Trying to execute code outside RAM or ROM at ..." error. 

I've searched around for this, and found some sites saying it's due to a bug with qemu and u-boot, which this image does use, but they're all from 2012, so I'm not sure how much weight to give them. 

Any ideas?

On Tue, Sep 30, 2014 at 10:45 AM, Brad Smith <address@hidden> wrote:
Hello all,

I'm new to messing around with ARM stuff, so I may just be doing something wrong, but I've attempted to follow several sets of instructions like this one:


...albeit using a newer kernel/initrd than the one referenced there, e.g. these:


The problem is that when I run a command like this:

  qemu-system-arm -m 256 -M versatilepb -kernel vmlinuz-3.14-2-versatile -initrd initrd.gz -hda hda.img -append “root=/dev/ram 

a qemu window pops up, but then nothing happens. It just hangs there forever. 

I'm running qemu 2.0.0 installed via brew on OSX 10.9.4.

I can boot things like a regular Ubuntu ISO using qemu-system-i386 (though it's *really* slow), so qemu is working under some circumstances. 

Between a small amount of experience with qemu and almost none with ARM I'm a bit stuck here. Does anyone have suggestions for troubleshooting?

Thanks in advance!

P.S. This is ultimately for testing software to run on a Cubietruck device with a Cortex-A7 processor. I see several -machine types that support a -cpu value of "cortex-a9", "cortex-15", etc, but no -7. Does anyone happen to know what the best machine/cpu combination would be for booting a linux distro designed for the Cubietruck? For example, this one:


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