ReadyNAS 104 froze now will not boot msg btrfs_merge_bio_hook+a0

---

Davexyz2 wrote:

 

So "no choice" but to unplug.  Will now not  boot,  tried os install after checking that base unit was ok with a "scratch disk.  Re-inserted the 4 discs (in the correct order) which may have worked but on boot  message on lcd panel now reads btrfs _merge_bio_hook+a0.  So from this cryptic message I believe that the unit cannot see the  "additional" Raid 5 layer which was created from the expansion with the 2 6Tb discs

---

This is a critical kernel message.

---

Davexyz2 wrote:

Can the the data be recovered by Netgear or do I have to get a specialist recovery company to attempt recovery,which I will obviously have to pay for.

---

Whether data recovery would be possible would require some diagnosis

---

Davexyz2 wrote:

 

How a company can release such an update which causes so much "damage",  wasted time and disatisfied customers.

For most users things go smoothly when installing a firmware update. For some (and these tend to be the most vocal) things don't go smoothly. In such cases often it isn't a problem with the firmware upgrade, but rather a pre-existing issue (e.g. a poorly maintained system) becoming more evident.

---

Davexyz2 wrote:

What is the point of the marketing hype of 90 day service support if a couple of years down the line an update supplied by the manufacturer  wrecks your equipment

---

If you run into issues as a result of a firmware update then in some cases we may make an exception to the support policy. This is at our discretion.

Btw our business class products (300 series and up) come with lifetime online chat support.

Note data recovery is not covered by the support warranty for any of our products. Exceptions to support policy that may be made would be for what we would normally charge per-incident-support or an ordinary support contract for. Important data should always be stored on more than one device. There are rare problems such as multiple disk failures, fire, flood, theft etc. that can happen.

The data recovery that we do is software only and may be unsuccessful. We can clone disks for a fee (we can provide instructions on how to clone them if you would rather do that yourself) if cloning is necessary, but if a disk requires physical repairs then a 3rd party service is the only option.

---

Davexyz2 wrote:

the unit does not ping or present on the network  with raidar 6 , v 4 or anything, so this is no-go as i stated earlier.  So can you come up with another solution which involves the discs being in a linux box for recovery.  As far a remote in etc the box is dead just this message and the blinking blue power light..

---

You said in a previous post that you tested the unit using a scratch disk and it was fine. We have more than one way to remotely examine systems and one of these is useful in most cases where a system fails to boot normally. Assuming the disks, array and volume are fine then data recovery using an x86 Linux box would be straightforward. However if there is a problem with any of these then it can be a lot more complex.

I have sent you a Private Message.