How to Fix Unmounted Raid

Q : My NAS lost all its settings, and all HDDs are shown as unmounted.

A : In case of corrupt/lost config:

1. Power off the NAS. Remove the HDD(s) 2. Power on the NAS 3. After a short beep and a long beep, plug the HDD back into the NAS 4. Run QNAP Finder, it will find the NAS, do NOT configure it! 5. Connect to the NAS by telnet port 13131 (e.g. with Putty) 6. Run the MFA Degree following commands to recover with default config

// Use the following commands if using 1 drive

  1. mount /dev/sda1 /mnt # cd /mnt/.config/ # cp /etc/default_config/uLinux.conf /mnt/.config/ # reboot

// Use the following command if using 2 drives (not tested)

  1. mdadm -A /dev/md9 /dev/sda1 /dev/sdb1 # mount /dev/md9 /mnt # cd /mnt/.config/ # cp /etc/default_config/uLinux.conf /mnt/.config/ # reboot

8. Above procedure will reset the configuration back to default and then you need to reconfigure it. But all the share should be available now. Please remember NOT to re-initialize the HDD. Since this will format your HDD and all your data will be lost. 9. To be prepared next time this happens, always make sure you have a working backup of your personal uLinux.conf!

Note: uLinux.conf is the main settings configuration


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2 Responses to How to Fix Unmounted Raid

  1. David Crook says:

    I have a QNAP TS-859 Pro+ whose status is unmounted. It was working reasonably well until recently – even after I had to change one of the 3.0TB drives with a suitable replacement. However, now it is showing as in a unmounted state. I read your article How to Fix Unmounted Raid but could not discern whether your instructions would be suitable for my model which has eight drives on a raid 5 setup. Any help would be appreciated.


    David Crook

  2. burado51 says:

    use this commands if Offical Qnap team told you “there is nothing you can do about this”

    Else, probably you can solve this with this document;

    But My advice, request help from Qnap tech team, we can ix this kind of problem in 10 mnts :)

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