In order to support AMI type images within your OpenStack installation, a directory /boot/guest needs to be created inside Dom0. The OpenStack VM will put the kernel and ramdisk extracted from the AKI and ARI images to this location. This directory's content will be maintained by OpenStack, and its size should not increase during normal operation. However, in case of power failures or accidental shutdowns, some files might be left over. In order to prevent these files from filling up Dom0's disk, it is recommended to set up this directory as a symlink pointing to a subdirectory of the local SR. Execute the following commands in Dom0 to achieve the above mentioned setup: # LOCAL_SR=$(xe sr-list name-label="Local storage" --minimal) # LOCALPATH="/var/run/sr-mount/$LOCAL_SR/os-guest-kernels" # mkdir -p "$LOCALPATH" # ln -s "$LOCALPATH" /boot/guest