Troubleshooting

Debug device model did not start

You may encounter the following error with draksetup command or drakrun-worker@* service, which will prevent the VM from starting properly.

libxl: error: libxl_create.c:1676:domcreate_devmodel_started: Domain 4:device model did not start: -3
...
subprocess.CalledProcessError: Command 'xl create /etc/drakrun/configs/vm-0.cfg' returned non-zero exit status 3.

In such a case, you should inspect /var/log/xen/qemu*.log in order to determine the actual reason why the VM is refusing to start.

Debug can't allocate low memory for domain

The following error with drakrun command or drakrun-worker@* service means that your machine is missing memory resources:

xc: error: panic: xc_dom_boot.c:122: xc_dom_boot_mem_init: can't allocate low memory for domain: Out of memory
...
subprocess.CalledProcessError: Command 'xl create /var/lib/drakrun/configs/vm-0.cfg' returned non-zero exit status 3.

Resolutions:

• adjust the amount of memory dedicated to the Dom0 (host system) in /etc/default/grub.d/xen.cfg (look for dom0_mem=2048M,max:2048M) and run update-grub && reboot

• adjust the amount of memory dedicated to the DomU (guest systems) in /etc/drakrun/install.json or /etc/drakrun/cfg.template ( memory and maxmem keys)