12-16-2017, 11:58 AM
If I boot the system without the usb3 drive connected (boot code & kernel on sd), it will proceed and eventually wait for rootfs. If I plugin the usb3 drive at this point, it will usually proceed booting from it (but it seems to depend on timing somewhat). While this is better than not being able to have rootfs on usb3 at all, it can cause issues if one needs to reboot the system remotely (no access to usb cables). This is with the 5.10 (stretch) image based kernel (4.4..something). The newer ones don't boot on my system (0.6.x) and, by the way, the mainline kernel does not boot either (but that could be something else). The rootfs itself is fedora 27.
