pfSense

Note this was after adding a 3rd party SSD.

The clean installation procedure on the 3rd party SSD went smoothly, but the issue persisted with no other side effects.

Danilo Zrenjanin wrote in #note-3:

The clean installation procedure on the 3rd party SSD went smoothly, but the issue persisted with no other side effects.

What make and model is the SSD?

Installing the SSD drive in another port did not resolve the issue. It behaved in the same way.

The TAC ticket number for reference is:
2157407569

same issue here. 6100, 23.09.1

onboard mmc died, added a WD SN520 NVME SSD.

same console output

Another one TAC ticket with the same issue
2336421939

Another user having this issue on a 5100. 2396258146

Customer reported this issue utilizing a Dogfish 2242 M.2 SSD. Model SSDMCEAC060B3A. Customer ticket 2396258146.

Another customer having this issue on a 5100 with a SHARKSPEED SSD M.2 2242 128GB. 2423567446

Same issue. Factory Netgate 6100. No add-ons or changes. 23.09.1
Have NOT changed the internal storage. Factory everything.

Another user encountered the same issue with their Netgate 6100 device after installing the Transcend TS256GMTE460T NVMe SSD drive.

The internal ticket reference number for this issue is #2488837032.

The 256 GB WD NVMe SSD performs without any issues when used with the Netgate 6100.

#2694043009 A 4100 using a Transcend TS128GMTE452T, but doesn't show the same "can't unload" message. This instead looks normal but it never actually reboots.

Netgate pfSense Plus is rebooting now.
pflog0: promiscuous mode disabled
Waiting (max 60 seconds) for system process `vnlru' to stop... done
Waiting (max 60 seconds) for system process `syncer' to stop...
Syncing disks, vnodes remaining... 0 0 0 0 0 0 done
All buffers synced.
Uptime: 2m38s
uhub0: detached

#2694043009 The latest test shows Khelp module "ertt" can't unload until its refcount drops from 5 to 0.

Enter an option:
Message from syslogd@pfSense at Jun 28 07:01:32 ...
php-fpm[407]: /index.php: Successful login for user 'admin' from: 192.168.1.100 (Local Database)

Netgate pfSense Plus is now shutting down ...

net.inet.carp.allow: 0 -> 0
pflog0: promiscuous mode disabled
Waiting (max 60 seconds) for system process `vnlru' to stop... done
Waiting (max 60 seconds) for system process `syncer' to stop...
Syncing disks, vnodes remaining... 0 0 0 0 0 done
All buffers synced.
Uptime: 2m27s
Khelp module "ertt" can't unload until its refcount drops from 5 to 0.
ix3: link state changed to DOWN
ix3: link state changed to UP
uhub0: detached

Ran into the same issue today on a 6100.
The internal storage was no longer detected after a power outage, so we installed pfSense 24.03 to a USB stick as a temporary workaround.
The output looks the same as the other posts - the usb devices are detached and then nothing. It also needed to be manually rebooted when the the pfSense installation was finished.

We DO NOT get the "Khelp module "ertt" can't unload until its refcount drops from 5 to 0." message".