If i start update-grub, i get a warning maybe from osprober /usr/bin/grub-probe: warning: unknown device type nvme0n1. My Install ist on an nvme. The names of the partitions start with nvme0n1p1 … Should i ignore this ?

Yes, iirc this is a result of some thing or another and does not result in a failure to boot or probe.

[image] Hanzel: is a result of some thing or another what is “some thing or another” ??? any further explanation ? eat it or leave it ???

[image] andreas85: warning: unknown device type nvme0n1 This seems to happen often with very new NVMe models – “too new” to be recognised by the system – as @Hanzel suggests, it will likely work as expected, regardless.

[image] andreas85: warning: unknown device type nvme0n1 Details when searching the forum: [image] Unknown device type nvme0n1 (two ssd) Support That line is harmless and triggered by /etc/grub.d/60_memtest86+. That file can even be safely removed on an…

Warning from update-grub

Support Software & Applications

Hanzel 29 November 2025 13:08 5

Details when searching the forum: