August 19, 2025Aug 19 Community Expert My house lost power earlier, and despite being plugged into a line interactive UPS and performing a clean shutdown, upon reboot, both docker containers and VM's are gone. The boot drive, cache drives, and array appear to have mounted correctly. Since both docker and VM's are gone, I am thinking corruption to boot drive as opposed to corrupted docker image. Not sure where to go from here, appreciate the help. Attached diagnostics. corsermoon_diags.zip
August 20, 2025Aug 20 Community Expert Both the Docker and libvirt images are very recent, but they were not created this boot.Pool is also showing issues; scrub it and pot the results from the GUI.Also post the output from:find /mnt -name libvirt.img
August 20, 2025Aug 20 Author Community Expert 5 hours ago, JorgeB said:Both the Docker and libvirt images are very recent, but they were not created this boot.Pool is also showing issues; scrub it and pot the results from the GUI.Also post the output from:find /mnt -name libvirt.imgThe copy at /mnt/user/internal_backups/libviry_backup is a couple years old. I was going to create a backup routine but clearly I didn't follow through. I did the same search for docker.img :
August 20, 2025Aug 20 Community Expert Solution There's only one image, so assuming all devices are mounting, it's gone or overwritten. If you don't have a recent backup, you can try recreating the VMs with the same config and pointing to the existing vdisks, but you should keep a recent backup of that.For Docker, assuming appdata is all there, you can just recreate the image:https://docs.unraid.net/unraid-os/manual/docker-management/#re-create-the-docker-image-fileThen:https://docs.unraid.net/unraid-os/manual/docker-management/#re-installing-docker-applicationsAlso see below if you have any custom docker networks:https://docs.unraid.net/unraid-os/manual/docker-management/#docker-custom-networks
August 20, 2025Aug 20 Author Community Expert 6 minutes ago, JorgeB said:There's only one image, so assuming all devices are mounting, it's gone or overwritten. If you don't have a recent backup, you can try recreating the VMs with the same config and pointing to the existing vdisks, but you should keep a recent backup of that.For Docker, assuming appdata is all there, you can just recreate the image:https://docs.unraid.net/unraid-os/manual/docker-management/#re-create-the-docker-image-fileThen:https://docs.unraid.net/unraid-os/manual/docker-management/#re-installing-docker-applicationsAlso see below if you have any custom docker networks:https://docs.unraid.net/unraid-os/manual/docker-management/#docker-custom-networksYea, I've already started reinstalling apps (I shouldn't need to re-create the docker.img though since it's already there?). I am just baffled that both docker and VM images vanished after a clean shutdown/reboot.What are the issues that you saw with the pool? I'd like to fix anything I can. Edited August 20, 2025Aug 20 by CorserMoon
August 20, 2025Aug 20 Community Expert Pool is showing device stat errors, meaning a device dropped offline in the past, but it appears to be OK now. Click on it to reset the starts, then recommend monitoring for any more errors.https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-700582
August 20, 2025Aug 20 Author Community Expert 19 minutes ago, JorgeB said:Pool is showing device stat errors, meaning a device dropped offline in the past, but it appears to be OK now. Click on it to reset the starts, then recommend monitoring for any more errors.https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-700582Thanks @JorgeB . Appreciate your help as always.
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