$ sudo cat /writable/cache/ubuntu_command
load_keyring image-master.tar.xz image-master.tar.xz.asc
load_keyring image-signing.tar.xz image-signing.tar.xz.asc
format system
mount system
update ubuntu-541be48f7b081a01afd5618f249f4befdce66ec4c07deee49a8b24b5f6fdb461.tar.xz ubuntu-541be48f7b081a01afd5618f249f4befdce66ec4c07deee49a8b24b5f6fdb461.tar.xz.asc
update device-2bc2ee8db5cd33e143438171da503c2ce56eeb49adc0617872b9a099d18c2288.tar.xz device-2bc2ee8db5cd33e143438171da503c2ce56eeb49adc0617872b9a099d18c2288.tar.xz.asc
update version-201.tar.xz version-201.tar.xz.asc
unmount system