I've recently used armbian-install to enable booting from my nvme/ssd drive and all appears to be working fine. However, I'm curious to know, why, the device is mounted twice as shown below.
The / mount point is in /etc/fstab but where/how does the device get mounted again on /var/log.hdd.

mount|grep nvme
/dev/nvme0n1p1 on / type ext4 (rw,noatime,errors=remount-ro,commit=120)
/dev/nvme0n1p1 on /var/log.hdd type ext4 (rw,noatime,errors=remount-ro,commit=120)

 

Edited February 7, 20251 yr by pkfox
added text

I think this is part of the ramlog service. To reduce wear on microsd cards stuff is logged into memory and periodically written to sd.

Since you are using a nvme this can be disabled. Check /etc/default/armbian-... files.