A firmware ran on my ready nas 104 on friday night and it had restarted, it now displays mount_block_root+248 and does not start and is not accessible. all out data at the moment appears to have gone, from the last 15 + years, including my childrens baby videos/photos. I have tried the usbrecovery but it does nothing, just sits are a debug telnet terminal. I really need help getting the device back online as we are so upset with the loss of all our family data. Please help!
One test that is useful is to try booting the NAS w/o drives, and see if you get the same error, or if you get a no disks status. My guess is that you will see the same error - but this is pretty easy to try.
First power down the NAS. Then remove the disks - labeling them by slot number as you remove them.
Then you can power up the NAS diskless, and see what status you get.
I really need help getting the device back online as we are so upset with the loss of all our family data.
You could try paid netgear support.
If you can connect the disks to a Windows PC (either with SATA or USB adapter/docks), then you can try RAID recovery software (which would let you offload the data). You need a package that supports BTRFS - for instance, ReclaiMe. https://www.reclaime.com/
I hope you can get the data back. After you do, you should look into putting a backup plan in place for your NAS. As you've discovered, RAID isn't enough to protect your data.
Hi, thanks for the looking at this, I have important stuff backed up its now more the unknown factor. Tried it with out the disks and the same error, the only part i can get to is in debug telnet connection. Its the latest firmware update which has caused it, i don't know if there is a way for flash the firmware from the usb via the debug console. Its setup as per netgear instructions but its not installing the firmware from the usb as per their support page. Tech support are not being helpful at the min, either helping or entertaining me paying for it.
Its setup as per netgear instructions but its not installing the firmware from the usb as per their support page. Tech support are not being helpful at the min, either helping or entertaining me paying for it.
The instructions for creating the flash are confusing.
Sounds like a UBOOT problem. USB recovery is supposed to fix it, but you are not the first to report it didn't. That could point to a hardware failure. Unfortunately, I'm not an expert there, as it's unique to ARM processors.
But, there is a good chance your volume is intact, so a replacement OS6 NAS could be a solution. Unfortunately, availability at a reasonable cost is not good.
I had the same experience as @adrien60 reported, where:
I got the "mount_block_root+248" error
I tried the USB recovery tool with firmware 6.10.7, but got the same error after rebooting
I tried recovering with 6.10.6 and it worked, with all my data appearing to be intact
Does anyone know what may have caused the "mount_block_root+248" error and if there's a fix for it planned? Would hate to think this is the last firmware upgrade I'll ever be able to do if this doesn't get fixed in a future release.
Ok, that's helpful to know @StephenB. Thanks for the info. I'll plan to try a firmware upgrade back to 6.10.7 soon, and will loop back here if I run into the same issue.
It's actually a hardware issue (all firmware updates include re-writing the flash memory with the new firmware image, and that appears to have resulted in an error).
You might want to try another USB recovery next, and see if that helps.
the only solution i found was to get hold of another chassis that has the previous firmware installed, swap the drives over like for like and power it on. it boots up with the older firmware but keeps all you data. I have disabled and further updates from Netgear as their technical want paying for further support. Its a but like the Iphone software slowing down old phones that is going around in the news at the moment, make you wonder if other companies are doing similar stuff with their hardware.
the only solution i found was to get hold of another chassis that has the previous firmware installed, swap the drives over like for like and power it on.
Sometimes it is possible to get the firmware image onto the flash manually using tech support mode. But if the flash has completely failed, then the only solution is to get another chassis.
FWIW, the RN104 was launched in 2013, and became "end of life" in 2016, so your NAS was between 6 and 9 years old. Like all electronics, eventually something will fail.
it boots up with the older firmware but keeps all you data
What is supposed to happen:
If the firmware image in the replacement chassis is newer than what is on the disks, the firmware on the disks is updated to match the flash.
If the firmware image in the replacement chassis is older than what is on the disks, then the flash image is updated to match the the disks.
Though if the replacement is x86 and the original was arm (or vice versa), then the firmware on the disks has to be updated from the flash, even if that results in a downgrade. If that is your situation, then it is best to do an initial install with a scratch disk, and then make sure the system is running the firmware you want it to run (avoiding a downgrade).
If you able to get hold of a chassis as long as it has the previous firmware (the one before latest/current version) move your drive and keep them in the same order, It will, when powered on say, "updating firmware" it will pass and restart the raid, i found online several people doing this and all their data came back, as did mine, luckily. Now have cloud backups in place as well just encase.
