Is your Device not ready log from initial installation?, or after “Move datadisk” please?
My 980 works fine, but was installed via “Move datadisk” as the hass-data partition only. Early discussions might suggest initial installation (e.g. CM4 Lite) is more troublesome. There might also be some some issues caused by trying the generic RPi4 image, rather than the Yellow specific one. The reality is we’re all still finding out!
The list I’ve seen of M.2 SSD known working are:
1TB Samsung 970EVOPlus M.2 SSD (press images - likely Frenk’s test device, 1TB waaay big for general use)- 250GB Samsung SSD 980 NVMe M.2 (was the smallest in-stock at Amazon, several users datadisk and boot)
250Gb Samsung 960EVO - Your Device not ready; aborting initialisation
Any more to add? (new thread perhaps?)
I’ve not seen a full list (sadly, the data sheet just says “2230/2242/2260/2280”), but there are a couple of Yellow threads discussing NVMe M.2 SSD installation.