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Forum Discussion
chris2531
Sep 14, 2017Aspirant
RN102 fails to boot when one mirrored drive fails or is missing
Hello everyboby, I have been looking for a solution or help but was not able to find any hints regarding the following problem. I own a RN102 device equiped with two disk forming a X-RAID mirror...
- Sep 21, 2017
Well, it's still unclear to me what the root cause was. Somehow the RAID superblock that gets generated for the newly-added disk kept getting rejected because the kernel thought it was invalid. However, I don't know which part it thought was invalid, and there's no easy way to remotely debug at that low level.
Anyway, I got your box fixed up by restoring a good superblock made on another machine to your disk, and it's resyncing now and looks normal. I also made sure that volume repair worked after simulating a failure, so I don't think you'll run into this again. If you do, please let me know.
Skywalker
Sep 15, 2017NETGEAR Expert
Somehow your disk 1 does not have a root partition. It's not clear how this situation developed, but our current software does not automatically repair this situation. That will be added in 6.9.0.
So there are two options for you. You can update to 6.9.0 Beta 2 (most likely available later today) which should fix it up automatically, or you can enable remote access for one of us and we can manually fix it up for you.
- chris2531Sep 15, 2017Aspirant
Hello Skywalker,
thank you for the prompt feedback. I have choosen a third approach and replace the drive not booting with a new one. After rebuild, the system is now able to boot with the other disk pulled. So I guess the complete rebuild created the root partition too. THANKS for the support!
Now I am facing an other problem. I now tried to replace the now pulled disk with one I have used before in that enclosure and the system doen not start to rebuild but indicates that the inactive volumes should be removed. I have tried to diskpart clean in windows for that drive but still the same error. I see the new (reused) disk colored red and some kind of ghost volume appearing when it is insert.
Any ideas how to force the system to accep the old disk. Pushing destroy form the volume menue doesn't have any effect.
Thank you and best greeting.
Chris
- SkywalkerSep 15, 2017NETGEAR Expert
Great, I'm glad option #3 worked for you. I was going to suggest that, but I was nervous since the bootable disk had some errors. But I'm happy to see it worked for you. :-)
When you click on the red (reused) disk, do you see a Format button on the right side of the GUI?
- chris2531Sep 16, 2017Aspirant
Hello,
yes, I see a foramt button. When pressing ist, I have to confirm to format. The system ( at least the GUI) is a few seconds busy but after that nothing changed. THe volume still cannot be used.
Greetings
Christoph
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