Virtualbox USB 3.0 Support

USB 3.0 (introduced around 2008) unfortunately is not the highest priority for the great Virtualbox VM software. If you need to move quite a truck load of data around in a VM you may use a clever workaround to get USB3.0 speeds in your VM. The credit for this workaround goes to MayanJedi who posted this approach in the USB 3.0 devices are unsupported Virtualbox.org ticket tracker. Steps for OS X: 1 $ sudo diskutil list$ sudo diskutil list choose your disk you want to use (e.g. /dev/disk3) 1 $ sudo diskutil unmountdisk /dev/disk3$ sudo diskutil unmountdisk /dev/disk3 1 $ sudo VBoxManage internalcommands createrawvmdk -filename ~/Desktop/3.0.vmdk -rawdisk /dev/disk3$ sudo VBoxManage internalcommands createrawvmdk -filename ~/Desktop/3.0.vmdk -rawdisk /dev/disk3 1 $ diskutil unmountdisk disk3$ diskutil unmountdisk disk3 1 $ sudo chmod 777 ~/Desktop/3.0.vmdk$ sudo chmod 777 ~/Desktop/3.0.vmdk 1 $ sudo chmod 777 /dev/disk3$ sudo chmod 777 /dev/disk3 1 $ diskutil unmountdisk disk3$ diskutil unmountdisk disk3 Edit your vm and add the 3.0.vmdk as a hard drive If you get any error try to unmount again (OS X tends to automount this sometimes) 1 $ diskutil unmountdisk disk3$ diskutil unmountdisk disk3 (make this undone after the party is over with: 1 $ sudo chmod 640 /dev/disk3$ sudo chmod 640...

qemu-img error and version madness

The Ubuntu Precise 12.04 qemu version is fairly “outdated” stopping at around 1.0. The current qemu release candiate is 1.3.0.rc2 . So if you are running into a qemu-img: error while reading sector 131072: Invalid argument error while converting images using qemu-img, just try to update your qemu binaries, by the provided source files of qemu.org. #Dependencies apt-get install libglib2.0-dev dh-autoreconf #untar tar xvfj qemu-1.3.0-rc1.tar.bz2 cd qemu-1.3.0-rc1 #configure ./configure ./make ./make install The binaries will be under /usr/local/bin/qemu-img So just for the sake of converting a full path to the qemu-img will do the trick: /usr/local/bin/qemu-img convert disk1.vmdk -O qcow2...