Unstick a LinkStation Disk Backup

Imagine this… you have two decent network attach storage boxes which regularly backup one to the other using a built in Disk Backup tool –  Brilliant huh, sounds almost like a nerdy dream! Now imagine part way through a backup you get a power cut or you just trip over the power cable ripping the plug out the wall… not to worry, things will pick up where they left off… unless those decent boxes are Buffalo LinkStations!

I first discovered this flaw a few weeks back when one of my nightly backups seemed to be taking longer than usual. I gave the box about a day or so to try and fix itself but it still kept saying that the disk backup was in progress and in the admin interface and I was unable to cancel or remove the backup, so it was pretty much stuck as you can see below:

stuck-backup

I headed to the official Buffalo support website which seemed to have a fix for this common problem – See for yourself below:

buffalo-stuck-disk-backup
Okay so you have to restore the box to factory defaults… no thanks! I can only assume that because the HS-DHGL is one of their older discontinued products they just can’t be bothered to make a firmware update as it’s not worth their time or effort, but the other option is to use SSH to edit a file which will force the backup to complete.

Getting Unstuck

The following guide will assume you have already enabled SSH and are logged in ready to go, if you haven’t yet enabled SSH see this post here.

  • First of all we need to locate the backup configuration file and this depends on the job number specified on the admin interface, in my case it was number 1 so we need to type in the following command to open the file in a text editor:
    • "vi /etc/melco/backup1"
  • You will now see the configuration file open, hit I (for indigo) on your keyboard to allow inserting of new text and change the line status=running to status=done
  • Hit the Escape key and then type :wq to save your changes and quit
  • Head back to the admin interface to the Disk Backup section and you’ll now see the backup showing as complete as seen below:
    job-complete
  • That’s it – The backup is unstuck, and we haven’t had to restore anything to factory defaults!

Notes

  • This has been tried and tested on the following models/firmware: HS-DHGL/v2.1
  • Finally, if you could let me know if you encounter any problems or can confirm if this works for other models I’d be grateful

Sunluxy H.624 DVR Factory Reset

I had previously purchased two Sunluxy DVR’s for various projects (see CoopCam.co.uk to find out more) and was impressed with how easy they were get up and running, it was literally a straight forward task of fitting a hard drive and then setting and forgetting… literally… setting the admin password and then forgetting it.

Not to worry though, the user manual will have some helpful tips on what to do? Wrong! Poor translation meant the manual ended up in the bin, never mind the Internet will be able to help surely… maybe not. After much research I thought my box was going to end up living with the user manual in the bin but then I turned to good old fashioned trial and error as a last resort.

Factory Resetting the DVR

So lets get to the juicy bit! For the steps below you will need to be near your Sunluxy DVR but before you continue please be aware that this process will not only reset the admin password, it will also remove any settings entered previously such as network configuration, recording preferences and so on. The hard drive and all existing data will be left untouched.

  • First things first switch off your DVR. In my case there was a power switch on the back that I flicked, so far so good!
  • The next step is to hold the Back button (the one that lets you flick back to the previous menus – labelled with a back arrow, sometimes also labelled ESC) whilst switching the DVR back on, the button can be seen circled in the image below:

sunluxy_password_reset

  • After a short delay you will see that all lights apart from the power light go out and hear a beep, this means the DVR has reset itself  and will automatically restart so release the Back button and you will see the DVR begin to boot as normal
  • Once everything has loaded you will then be able to login to your DVR using the default username of admin and leaving the password field blank

Notes

  • In this example we used a Sunluxy branded DVR, however this process (or something very similar) should work with most generic H.624 DVR’s as well
  • The steps above assume your monitor is connected via the VGA connection, as Chris suggested in the comments below, try using the BNC connection if you have trouble with menus not showing
  • Finally, if you could let me know if you run into any problems or if the process works on other brands or models I’d be grateful

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