Tim

@minoru May you please take a look at this?

@mrclksr yes, sure. dsbmd: dsbmd started on Tue Dec 15 15:48:51 2020 dsbmd: stat(ugen0.4): No such file or directory on Tue Dec 15 15:48:51 2020 dsbmd: Client with UID 1001...

There is log after start system. By the way device which called "nixos" is usb portable drive which was NOT in port. I plugged it some times before but not...

@mrclksr yep, all two are installed.

> Ok. Let's start with NTFS: Try to mount your NTFS device. If it fails, get the last 20 lines from `/var/log/dsbmd.log` via `tail -20 /var/log/dsbmd.log` and post them here....

> What about Ext? It works as well. Exfat have some issue. It mounts but contents are hidden. Like its empty but it doesn't

dsbmd: Client with UID 1001 disconnected on Tue Dec 15 21:21:28 2020 dsbmd: Client with UID 1001 connected on Tue Dec 15 21:21:36 2020 mount_fusefs: failed to exec fuse daemon:...

Yes 

ext_opts = "rw,noatime" ext4_mount_cmd_usr = "/sbin/mount_fusefs auto \"${DSBMD_MNTPT}\" fuse-ext2 -o 'rw+' ${DSBMD_DEVICE} \"${DSBMD_MNTPT}\""

looks like something wrong with this command