On 12/09/2020 14:07, Ralph Corderoy wrote: > Hi Hamish, > >> Any thoughts about diagnosing storage unmounting with no explanation >> is dmesg? This seems rather strange to me. I'm using a powered hub >> too now, in case I forgot to mention. Other volumes on the same >> external disk stay mounted. > - How does the filesystem which keeps unmounting differ from the other > ones on that disk which don't? This one is in a LUKS container. The others are not. > - What's that filesystem used for? File syncing between my laptop and desktop with Nextcloud. > - Does ‘sudo lsof /dev/sda1’, adjusted as appropriate, show surprising > programs using that filesystem? Will get back to you on that in a few days :) > - Is it possible it is deliberately unmounted from userspace due to some > forgotten or erroneous program? > - If the mount-point is altered, does the problem continue? > This may be impractical to test. Possible I guess. I will give this a try if it fails again. > - Have you fun a *forced* fsck on the unmounted filesystem? Yes, it comes up okay. > - Have you read every byte of the block device? > - Does putting it under stress in this manner make an unmount more > likely?
Yes, it seems okay as far as badblocks' read only test says. Previously yes, but with the new USB driver is seems more stable. It still did crash after adding the new driver though. I'm pretty sure the drive has enough power - it ran mostly fine even without the hub, but it now has an extra 2A available from a generic but known good power supply - should be good. Hamish
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