Installation failed: the boot and root partitions are on separate disks

[HuijingHei]

When running bootc install on disk that boot and root partitions are on separate disks, like following:

[root@nvidia-jetson-agx-orin-03 ~]# lsblk
NAME         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
mmcblk0      179:0    0  59.3G  0 disk 
├─mmcblk0p1  179:1    0   600M  0 part /boot/efi
└─mmcblk0p2  179:2    0     1G  0 part /boot
mmcblk0boot0 179:8    0  31.5M  1 disk 
mmcblk0boot1 179:16   0  31.5M  1 disk 
nvme0n1      259:0    0 465.8G  0 disk 
└─nvme0n1p1  259:1    0 465.8G  0 part /

Run bootc install using quay.io/centos-bootc/centos-bootc:stream9 failed with command:

podman run \
--rm --privileged \
-v /dev:/dev \
-v /var/lib/containers:/var/lib/containers \
-v /:/target \
--pid=host --security-opt label=type:unconfined_t \
quay.io/centos-bootc/centos-bootc:stream9 \
env BOOTC_BOOTLOADER_DEBUG=1 RUST_LOG=trace bootc install to-existing-root --skip-fetch-check --acknowledge-destructive --root-ssh-authorized-keys /target/root/.ssh/id_rsa.pub --karg=console=ttyS0,115200n8

From the logs, we passed device /dev/nvme0n1, but it should be /dev/mmcblk0

Bootloader: grub
Installing bootloader via bootupd
[TRACE bootupd] executing cli
[DEBUG bootupd::efi] Found metadata grub2-efi-aa64-1:2.06-120.el9.aarch64,shim-aa64-15.8-2.el9.aarch64
[DEBUG bootupd::efi] Reusing existing mount point "/target/boot/efi"
[DEBUG bootupd::efi] Get product name: 'CentOS Stream'
[DEBUG bootupd::efi] Unmounting
[TRACE bootupd::efi] Unmounted
error: boot data installation failed: installing component EFI: Updating EFI firmware variables: Failed to find ESP device
error: Installing to filesystem: Installing bootloader: Failed to run command: Command {
    program: "bootupctl",
    args: [
        "bootupctl",
        "backend",
        "install",
        "--write-uuid",
        "-vvvv",
        "--update-firmware",
        "--auto",
        "--src-root",
        "/target/ostree/deploy/default/deploy/74cb3048605f17a48123e00e498ab2cea020f872dc7b02f6be6425e1b36d29ef.0",
        "--device",
        "/dev/nvme0n1",
        "/target",
    ],
    create_pidfd: false,
}