[nycbug-talk] BeagleBone in qemu

[George Neville-Neil]

On Oct 18, 2012, at 12:44 , Brett Wynkoop <nycbug at wynn.com> wrote:

> Greeting-
> 
> I have been trying to boot the image that George sent the link to, but
> qemu seems unhappy trying to boot it.
> 

BTW You should probably join the arm@ mailing list for FreeBSD to get
answers on this sort of stuff.  There's a lot of work going on there
with ARM, beagle, and Pi right now.

qemu arm isn't running on my mac laptop atm, but I hope to play with that
soon.

Best,
George
> ivory:beaglebone wynkoop$ qemu-system-arm   FreeBSD-BEAGLEBONE.img
> Kernel image must be specified
> ivory:beaglebone wynkoop$ 
> 
> Mounting the disk image shows us this:
> 
> ivory:beaglebone wynkoop$ ls   /Volumes/BOOT
> LOADER.HEL      MLO             U-BOOT.IMG      UBLDR           UENV.TXT
> ivory:beaglebone wynkoop$ 
> 
> So I tried the following:
> 
> ivory:beaglebone wynkoop$ qemu-system-arm   FreeBSD-BEAGLEBONE.img
> -kernel /UBLDR /UBLDR: No such file or directory
> qemu: could not load kernel '/UBLDR'
> ivory:beaglebone wynkoop$ 
> 
> ivory:beaglebone wynkoop$ qemu-system-arm   FreeBSD-BEAGLEBONE.img
> -kernel U-BOOT.IMG U-BOOT.IMG: No such file or directory
> qemu: could not load kernel 'U-BOOT.IMG'
> ivory:beaglebone wynkoop$ 
> 
> 
> .....and a few other variations.  
> 
> I have found things on line about booting GNU/Linux images in qemu and
> they look something like this:
> 
> 
> qemu-system-arm -M versatilepb -cpu cortex-a8 -kernel ./vmlinuz -hda
>  rootfs.img -m 256 -append "root=/dev/sda mem=256M devtmpfs.mount=0 rw"
> 
> 
> So the big question is has anyone figured out the magic needed to boot
> the image in qemu?  My MacBook seems not to want to mount the image
> that is in the root dir of the image.  I have not tried to copy that to
> another BSD box yet due lack of space on my other box. I am trying to
> get a jump on my Beagle Project.
> 
> -Brett
> 
> -- 
> 
> wynkoop at wynn.com
> 917-642-6924
> 718-717-5435
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