我把它弄得太快了，而且安装了默认的 ubuntu-22.04.1-server。启动正常。我之前读到过 ESP 是标准配置。现在，我将尝试找到 efi 的文件...
有人对此有什么想法吗？
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1M 0 part
├─sda2 8:2 0 1.8G 0 part /boot
└─sda3 8:3 0 18.2G 0 part
└─ubuntu--vg-ubuntu--lv 253:0 0 18.2G 0 lvm /
/dev/mapper/ubuntu--vg-ubuntu--lv: UUID="29ab3102" BLOCK_SIZE="4096" TYPE="ext4"
/dev/sda2: UUID="c9bcbedc" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="33ae1d8b"
/dev/sda3: UUID="OfZPJx" TYPE="LVM2_member" PARTUUID="6495663a"
/dev/sda1: PARTUUID="9a027567"
Disk /dev/sda: 20 GiB, 21474836480 bytes, 41943040 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: C2AF092F-0A19-422B-8875-56219F49F593
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
/dev/sda2 4096 3719167 3715072 1.8G Linux filesystem
/dev/sda3 3719168 41940991 38221824 18.2G Linux filesystem
/boot
├── grub
│ ├── fonts
│ ├── i386-pc
│ └── locale
└── lost+found
你可以通过以下方式检查启动类型：
sudo efibootmgr
EFI variables are not supported on this system.
...比 BIOS 启动。