well, looks like i got myself into trouble (again)...here is what happened:

 

I connected to my unRAID box via my VPN connection, called up the WebGUI and pasted the "https://raw.githubusercontent.com/limetech/unRAIDServer-6.2/master/unRAIDServer.plg" command into the Install Plugins field of the WebGUI.

 

the pop-up overlay stayed empty for at least a minute or two, and when it finally showed a log of operations it was stuck at something like "resyncing" or "syncing" (not sure).

 

I then saw that my VPN connection (using Tunnelblick) was trying to reconnect (so it must have disconnected in the course of this attempted upgrade).

 

Trying to bring up the WebGUI failed, so i successfully started a telnet session into unRAID.

 

Probably in bad judgement I searched for the telnet commands to restart emhttp and entered the following series of commands:

 

  root@unRAID:~# killall emhttp

  root@unRAID:~# nohup /usr/local/sbin/emhttp &

  [1] 20124

  root@unRAID:~# nohup: ignoring input and appending output to ‘nohup.out’

 

  [1]+  Done                    nohup /usr/local/sbin/emhttp

  root@unRAID:~# emhttp

  Segmentation fault

  root@unRAID:~# /usr/local/sbin/emhttp

  Segmentation fault

 

Needless to say the WebGUI did not come back.

 

My probably bad judgement wondered whether i should try to reboot the server cleanly and i searched for the commands necessary to do that, and upon finding Joe L.'s post in regard to this, started entering the following commands:

 

cd /root

cp /var/log/syslog  /boot/syslog.txt

chmod a-x /boot/syslog.txt

 

But when i started to input the next command (samba stop) I realized that I may be treading on thin ice and lose the opportunity to recover from this properly, so i mounted my flash locally and backed up its entire content. (syslog attached)

 

My intuition says that rebooting the server might not work, as the new unRAID system was probably not fully installed, and that my access to the server's flash drive may be my only chance of rebooting to a working system now.

 

The question is: where do i go from here?

 

syslog.txt

On V6 you can't restart emhttp.

 

So I think your webui is gone until a reboot.

 

Do you have the powerdown plugin installed (an absolute essential in my opinion)

 

If you still have SSH/Telnet access you can enter

 

powerdown -r

 

to reboot the server, but I fear you're right, you may well need to be local to fix this,  but right now it doesn't appear you've got much to lose.

I "think" i may have installed the powerdown plugin recently, but am not entirely sure.

 

before i try this, is there a way for me to upload the latest complete 6.2.0 beta to my flash, so that at least the Web GUI might come back after a reboot? if the reboot ends up being dirty and a parity check is started, i can live with that, but ending up with a system that will require local interaction would be much worse.

Pretty sure copying bzimage,bzroot still works.

Try

 

wget -P /mnt/cache/unraid/ http://dnld.lime-technology.com/beta/unRAIDServer-6.2.0-beta23-x86_64.zip
unzip /mnt/cache/unraid/unRAIDServer-6.2.0-beta23-x86_64.zip -d /mnt/cache/unraid/
cp -f /mnt/cache/unraid/bz* /boot/
rm -rf /mnt/cache/unraid
powerdown -r

 

This working will be dependent on the server being able to shutdown and reboot successfully I think.

Right after i posted my question i just went ahead to copy the contents of the newest server version that i had downloaded to my flash and then issue first the powerdown - r command (didn't work), then the reboot command, which rebooted my server and restored the WebGUI...then i installed the Powerdown Package 2.20, so that in the future i'd be able to successfully issue the powerdown -r command.

 

I then tried to bring the array back online but found that after the WebGUI printed the following feedback at the bottom, it stopped responding again:

Start array...Mounting disks...Starting Plex Media Server...Start OK!Starting SABnzbd...Start OK!

 

It has now become unresponsive again...what could have become screwed up with the WebGUI, and what can I do to trouble-shoot the issue?

 

i can still telnet in just fine.

Wait, it just came back with Parity is valid and the WebGUI working! I guess it just took a really long time to fully bring the array back online. Huh.

You should convert your plugins to dockers. SAB is especially known to slow down bootup.

You should convert your plugins to dockers. SAB is especially known to slow down bootup.

And if SAB was in the middle of a download, that would explain why the sync never really completed

SAB wasn't downloading anything, Squid, but when you say "convert plugins to dockers", trurl, do you mean de-installing the plugin versions and re-installing them as dockers, or how do you mean? I am still very unsure how to properly configure dockers and have "wasted" a lot of time trying to do the most simple things with dockers, or simply getting them to work.

 

As for SAB, I am not really using it on unRAID, so I'll un-install it right now, just to remove that potential for problems.

... do you mean de-installing the plugin versions and re-installing them as dockers...

yes

 

Typically you can even get the dockers to use the plugin's data so your plex library would be intact. Please read the Docker FAQ and other stickies in the docker subforums. Once you understand volume mapping it's easy.

I shall heed your advice, trurl, and read up on how to gain better knowledge of how to make dockers work properly. Thanks!