Vnx-rootfskvmandroid

How to create a KVM Android X86 root filesystem for VNX

Basic installation

Follow this procedure to create a KVM Android X.86 based root filesystem for VNX. The procedure has been tested with Android-x86-4.4 (http://www.android-x86.org).

• Create the filesystem disk image:

qemu-img create -f qcow2 vnx_rootfs_kvm_android-4.4-v025.qcow2 12G

• Get Android X86 installation CD. For example:

wget https://downloads.sourceforge.net/project/android-x86/Release%204.4/android-x86-4.4-RC2.iso
cp android-x86-4.4-RC2.iso /almacen/iso

• Create the virtual machine with:

vnx --create-rootfs vnx_rootfs_kvm_android-4.4-v025.qcow2 --install-media /almacen/iso/android-x86-4.4-RC2.iso --mem 1G --video vga

• Do a standard installation, for example, following the steps described here
• Choose reboot at the end and before it starts again, kill the virtual machine with:

# virsh list
 Id    Name                           State
----------------------------------------------------
 166   vnx_rootfs_kvm_android-4.4-v025.qcow2-2425 running

# virsh destroy 166
Domain 166 destroyed

Configuration

• Start the VM again with:

vnx --modify-rootfs vnx_rootfs_kvm_android-4.4-v025.qcow2 --mem 1G --video vga

• Complete the installation assistant and after that, go to "Dev Tools->Developer Options" and check "Stay Awake" (if not, you won't be able to awake the virtual machine when the screen is switched off after inactivity timeout). Besides, go to "Setting->Display->Sleep" and select "Never time out".
• Halt the VM, for example, going to the console typing "Alt-F1" and "halt".
• Optionally, you can redirect the console to the serial port (ttyS0) to be able to have a cut&paste capable text console:

vnx_mount_rootfs -p 1 -r vnx_rootfs_kvm_android-4.4-v025.qcow2  /mnt/
vi /mnt/grub/menu.lst
# Add "console=ttyS0" to the kernel line of default boot option
vnx_mount_rootfs -u /mnt/

For android 7 use:

virt-list-partitions vnx_rootfs_kvm_android64-7.1-v025.qcow2
sudo guestmount -a vnx_rootfs_kvm_android64-7.1-v025.qcow2 -m /dev/sda1 /mnt/
...
sudo guestunmount /mnt/

Known problems

• Command execution for Android is not implemented yet. Use adb to execute commands in Android VMs from the host.