Hi Marcin Thanks~ I cloud not find uefi mode cloud image in ubuntu bionic. Instead, use the image bionic-server-cloudimg-amd64.img with metadata "hw_firmware_type: uefi" https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.... However, console shows no screen. Besides, neither creating a CentOS image with console available isn't work. GRUB_CMDLINE_LINUX = "... console=tty0 console=ttyS0,115200n8" Cloud you please provide some suggestions how to implement console input/output with uefi mode os. My appreciation~ Hi. After launch an UEFI mode instance in OpenStack, the console screen show the message “Guest has no initialized the displayed (yet) " Engage your help, many thanks Base on ubuntu cloud image, listed as below https://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-... // // Please check with bionic image. // // On arm64 xenial image was unable to initialize graphics for uefi hosts. -- ————————————————————————————— 九州云信息科技有限公司 99CLOUD Inc. 于成德 产品开发部 邮箱(Email): yu.chengde@99cloud.net 手机(Mobile): 13816965096 地址(Addr): 上海市局门路427号1号楼206 Room 206, Bldg 1, No.427 JuMen Road, ShangHai, China 网址(Site): http://www.99cloud.net