Factory reset a DEC740?

[lionflower]

I have a brand new Dec740 firewall bought from opnsense and everything was working fine on it. I added an ipsec vpn and now I have lost all access to the unit. I can't ping the lan address or anything. I think it may have been because the remote lan subnet overlapped with my lan subnet

How do I factory default the unit or reload opnsense? Is that possible?

I have tried accessing the unit with a console cable but all i get is the below when the unit boots. I don't see any login screen

uart0: <8250 or 16450 or compatible> port 0x3f8-0x3ff irq 3 flags 0x10 on acpi0
hwpstate0: <Cool`n'Quiet 2.0> on cpu0
Timecounter "TSC-low" frequency 1097938045 Hz quality 1000
Timecounters tick every 1.000 msec
ugen0.1: <0x1022 XHCI root HUB> at usbus0
uhub0 on usbus0
uhub0: <0x1022 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
ugen1.1: <0x1022 XHCI root HUB> at usbus1
uhub1 on usbus1
uhub1: <0x1022 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus1
nvme0: Allocated 64MB host memory buffer
nvd0: <TS128GMTE110S> NVMe namespace
nvd0: 122104MB (250069680 512 byte sectors)
Trying to mount root from ufs:/dev/gpt/rootfs [rw]...
WARNING: was not properly dismounted
WARNING: : mount pending error: blocks 0 files 1
uhub1: 3 ports with 3 removable, self powered
uhub0: 8 ports with 8 removable, self powered
igb0: link state changed to UP
intsmb0: <AMD FCH SMBus Controller> at device 20.0 on pci0
smbus0: <System Management Bus> on intsmb0
lo0: link state changed to UP
amdsmn0: <AMD Family 17h System Management Network> on hostb0
amdtemp0: <AMD CPU On-Die Thermal Sensors> on hostb0
pflog0: permanently promiscuous mode enabled

This suggests the unit is booting but I can't access the gui, ping the lan interface or get DHCP from the lan interface anymore.

[franco]

Which version is this? It looks like 22.1 at least?

From 22.1.2 on you need to recycle the box and go to BIOS and disable legacy UART:

AMD CBS->FCH-UART


Cheers,
Franco

[eholcroft]

Were you able to resolve this issue? I have the same problem on a brand new DEC2750.

[franco]

The fix is as posted... the box doesn't need a factory reset and even if you reset it the BIOS is unaffected and still needs to be sorted.


Cheers,
Franco

[eholcroft]

Oh, well never mind, doing exactly what Franco said resolved the issue, doh. I'm running v22.4

Thanks!

[franco]

 ;D

[Radoslavas]

Hi. We have a brand new DEC3840, and after update (probably) now serial console not fully accessible. In BIOS
settings AMD CBS->FCH-UART always "enabled", and grayed out, no possible to change to disable.
Now after some wrong config restoration , I have no access to device, last log in console I can see is:
No network interfaces are assighned. thats it, no more input is working. What can I do in this situation to make factory reset/init.

[franco]

The UEFI console display isn't perfect as per BIOS, but it's possible to change the value to disabled.


Cheers,
Franco

[Radoslavas]

Yes, I think it working even if grayed out. But why input not working after "No network interfaces are assighned", not from laptop nor from keyboard. I stack with no access at all.
I can enter some kind of failsafe mode and see wrong conf/config.xml, but how can I replace it with good one?
Thanks in advance.

[franco]

I would recommend to reinstall with serial image or try single user mode boot to edit bad /conf/config.xml

The no network interfaces was done deliberately as you can't end up with this during a reset and the factory defaults always set up a LAN and a WAN.

About the console settings the same can be said, possibly primary console not set as "serial" or switched to wrong "USB" mode.


Cheers,
Franco

[franco]

PS: these are the right settings...

<serialspeed>115200</serialspeed>
<primaryconsole>serial</primaryconsole>
<usevirtualterminal>1</usevirtualterminal>

[Radoslavas]

Thank You.
Booting to single user mode and deleting /conf/config.xml helps to boot to factory defaults. 

[franco]

Ok, that works too :)


Cheers,
Franco