mount_block_root +25e message

Question

Have a RN51600 unit that was purchased in 2014 as a back up for a unit that was not functioning 100% but eventually was updated and operated for several years more thus this unit was not put into operation until early 2019.

Recently we had a storm with some wind which caused the power to flicker but not go out. After that night I noticed that access to the mapped drive and the unit through RAIDer was not functioning. The the unit displayed the error message 'mount_block_root +25e'. I followed many of the online suggestions from the simple on/off to the creation of the 'usbrecovery tool' on three different usb sticks. Thus far none have gone beyond the 'Boot from USB' message. Not sure where the error could be from. We have this unit as well as an additioanl Ready Nas, and a Security Camera syetem DVR plugged into and APC Surge/battery back up. None of the other units show any errors.

Just looking for addition possiblities for reapiring this issue.

StephenB · Answer

There's an issue with the flash - the next step is to try a USB recovery.&nbsp;&nbsp;https://kb.netgear.com/29952/How-do-I-use-the-USB-Recovery-Tool-on-my-ReadyNAS-OS-6-storage-system

ambilik · Answer

Thank you for the quick response.&nbsp; I have attempted this as stated with several different types of USB sticks but the unit rarely goes past the Booting from USB and when it has the same mount_block_root +25e message appears.&nbsp; Seems that my research has shown this happening to many of the same models after firmware updates or power outlages.&nbsp; Our pow never went completely out just flickered but I also have the unit on an APC surge/battery back up plius the the electrical supply panel has a surge protection built in and the property is has an automatic back up generator.&nbsp;I do not know if I should try another make of USB drive as some in the forums have indicated.&nbsp; Thus far I have utilized two new NXT 16GB, one PNY 16GB and oneSanDisk Cruzer mini 256MB.&nbsp;&nbsp;&nbsp;Not sure any of this is working.&nbsp; Sad that this unit was put in use not too long ago and has never had any issues like disk failures or errors prior to this.&nbsp; So before I get too far in,&nbsp; the question may be if the disk that are in the unit can not be placed in a new unit will I still be able to get my data?&nbsp;

StephenB · Answer

When did you purchase the NAS?&nbsp; The warranty is 5 years for the original purchaser, so it might still be in force.
&nbsp;
ambilik&nbsp;wrote:
I do not know if I should try another make of USB drive as some in the forums have indicated.&nbsp; Thus far I have utilized two new NXT 16GB, one PNY 16GB and oneSanDisk Cruzer mini 256MB.&nbsp;&nbsp;
&nbsp;

Smaller drives tend to work better for this, so if you have another small drive it'd be worth a try.
&nbsp;
ambilik&nbsp;wrote:
The question may be if the disk that are in the unit can not be placed in a new unit will I still be able to get my data?&nbsp;

If the array is still intact, you can migrate it to a new OS-6 ReadyNAS. I'd suggest one of the x86 models (currently shipping models are RN426, RN428, RN526, RN528, RN626 and RN628)

ambilik · Answer

Again thank you for the response.&nbsp;&nbsp;This device was purchased in June 2014.&nbsp; As stated this unit was purchased as a replacement for a device that was not functioning properly at the time. Updates and repairs were made to the malfunctioning device and the purchased replacement device was shelved.&nbsp; I thought I was rolling the dice and the original would malfunction again.&nbsp; But it appears my luck bite me on the other end as bring the current unit online in 2019 the warranty may have already been exhausted before I put it in place.&nbsp; I will have to see what I can do to be able to migrate the data to a new unit so that I do not loss too much more.&nbsp;Do you have any links to the best practices for the migration of the data?&nbsp; Or does this depend on the model of the replacement?&nbsp; I know your response referenced several&nbsp; OS6 units and assume that they all work the same but the bad unit has 6 disks and I would imagine that I should pick the best match to replace.&nbsp;Thank you again.&nbsp; Be safe and stay healthy.

StephenB · Answer

ambilik&nbsp;wrote:
I know your response referenced several OS6 units and assume that they all work the same but the bad unit has 6 disks and I would imagine that I should pick the best match to replace.
&nbsp;

I listed all of the currently shipping Desktop ReadyNAS with 6 or more bays.&nbsp; All are x86 models (as is your 516).
&nbsp;
The RN526 is closest to your RN516.&nbsp; The RN620 family is a bit more powerful, the RN420 family is bit less.&nbsp;
&nbsp;
ambilik&nbsp;wrote:
&nbsp;
Do you have any links to the best practices for the migration of the data?&nbsp; Or does this depend on the model of the replacement?&nbsp;

You can do a test install on the new NAS (using a spare disk), and make sure it works properly - for instance, make sure the NAS boots with the disk in every bay.&nbsp; Also, you can make sure the NAS is running the current firmware.
&nbsp;
But all you need to do with the migration itself is move the disks to the new NAS - preserving slot order.&nbsp; Then power it up.&nbsp; If the firmware isn't identical to what is in the flash memory, then the newest firmware will win.&nbsp; If the NAS flash is newer, then the disks will be updated from the flash; if the OS on the disks is newer, then then flash will be updated from the disks.

Forum Discussion

mount_block_root +25e message

8 Replies

Related Content

Error mount_block_root +25e

NAS 314 mount_block_root +25e

ReadyNAS error: "mount_block_root+1f1"

mount_block_root+25e

Notification Message Quest Wifi Test Deep Link

NETGEAR Academy

ProSupport for Business