使用Ubuntu21.04,我正在尝试更新戴尔纬度5510上的固件。这个命令是fwupdmgr update,一开始看起来很好。Upgrade available for System Firmware from 1.5.1 to 1.7.0这在更新下载和解压缩时进行得很好,但在使用以下消息进行身份验证时会停止
一份通知发出:Your system has UEFI secure boot enabled firmware, and the following kernels present on your system are unsigned:The kernels cannot be verified under secure boot. To ensure your system remains bootable,