4C_plus no running OS?

[dennix]

Hi, @jack
I am using the image ‘rock-5c_bookworm_cli_b1.img’, which I installed on a microSDHC card (SD card) using the ‘dd’ command.
But as I have an old 120 GB SSD, I wanted to perform the same operation by connecting it to a USB 3.0 port. Unfortunately, it is not possible to boot the SSD directly into USB 3.0. It would probably be easier to use Radxa’s SPI Flash module.
But for the time being, I would like to be able to boot the system with bootloader and kernel on an SD card, then put rootfs on the SSD (USB3.0).
How can I do this?
I had already opened a topic, see the link below:

SPI Flash module to boot the OS on SSD?

Hi, I have an SBC Radxa rock-5c I read on the forum that you can boot different devices: You can place your operating system on a USB dongle or SATA SSD (sata --> USB 3.0 cable/controller attached to USB 3. 0 port) You can place your operating system on emmc You can place your operating system on microSDCARD You can place your operating system on Nvme" I’d like to boot the OS “rock-5c_bookworm_cli_b1.output.img” on a SATA SSD (sata --> USB 3.0 cable/controller attached to the USB 3.0 port) …

Thanks!