USG20W-VPN FSCK message

Kevin_Objsys

When rebooting our USG20W-VPN router via the console port, I noticed this message:

/dev/mmcblk0p7: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
(i.e., without -a or -p options)

I already used the reset button on the router and then reapplied a saved config file. The above error was still reported.

How can I get rid of the above error?

Zyxel_Melen

Hi @Kevin_Objsys,

What happened when this log was printed? Are you able to record the logs when rebooting so we can check?

Kevin_Objsys

Attached is the output showing the reboot command and what followed. We've had some intermittent trouble with traffic not going in or out through the WAN. I am not sure the problem lies with the Zyxel, but I noticed this message about the file system inconsistency while rebooting and wanted to look into it.

reboot.txt

Zyxel_Melen

Hi @Kevin_Objsys,

We recommand you follow the steps below to recover it first:

1. Please backup your configuration.
2. Please reset the USG20w-VPN to factory default.
3. Please reference this FAQ to recover the db.
   https://community.zyxel.com/en/discussion/2632/how-to-recovery-database-when-it-is-broken
4. Restore the original configuration.

Hope it helps.

Kevin_Objsys

First, note that the error I am seeing during boot up is not the same error that is mentioned in the FAQ you referenced and also my device does boot up despite the error. But, beyond that, the instructions tell me to FTP some *.db file to the router - where does that file come from?

Zyxel_Melen

Hi @Kevin_Objsys,

Thanks for letting me know your concerns. After checking, please take these actions first:

(1) Plug-in power cable and enter debug mode.

(2) Enter at command:

1. atkz -d
2. atgo

Kevin_Objsys

What will those commands do? Do they make any changes to the firewall, or are they purely diagnostic?

Zyxel_Melen

Hi @Kevin_Objsys,

The command atkz -d is to print more information when booting, and atgo is to reboot the firewall.

Kevin_Objsys

Here is the log from rebooting with the commands given. I've scrubbed potentially sensitive stuff from the log (user names, IP addresses, passwords, some address object definitions)

<file downloaded by Melen and removed for privacy reason>

Kevin_Objsys

Oh, and the message about file system inconsistency and running FSCK is gone now. Along the way, I updated to the latest firmware (Nov 16 just came out) and I followed your instructions for atkz and atgo twice, because the first time I failed to capture the log. So, I'm not sure what resolved the issue, but it appears to be resolved!