mark2741 Posted May 29, 2023 Share Posted May 29, 2023 (edited) Fix Common Problems is reporting a "Cache unmountable: wrong or no filesystem" warning for all of my shares. Attaching diagnostics. I am running the latest stable build of unRAID (6.11.5). I'm not sure what do do/check. My cache drive is an NVME SSD, about 2 or 3 years old. For the past few months I've been getting errors every few weeks saying that the cache was full or read-only, but neither was the case so I'd reboot and that seemed to solve the issue. Today I did the same and now getting the below warnings.  Screenshots of my settings: unraid-diagnostics-20230529-1610.zip Edited May 30, 2023 by mark2741 solved Quote Link to comment
itimpi Posted May 29, 2023 Share Posted May 29, 2023 The syslog shows: May 29 16:07:45 unRAID root: mount: /mnt/cache: can't read superblock on /dev/sdc1. and the cache device not mounting which explains your symptoms.  It is  hopefully @JorgeB might give you best achieve on recovering from this. Quote Link to comment
JorgeB Posted May 30, 2023 Share Posted May 30, 2023 Cache fs has checksum errors, this may indicate a RAM problem, you can try zeroing the log in case that's the only/main problem: Â btrfs rescue zero-log /dev/sdc1 Â Quote Link to comment
mark2741 Posted May 30, 2023 Author Share Posted May 30, 2023 (edited) Thank you @JorgeB. I ran that command and then did a reboot and it seems to have cleared the prior warnings. But now am seeing the errors below again when I run FCP. This is what I saw before a couple or few times over the last few months, but a reboot would (temporarily) seem to fix it. Â Â Looking at the Docker page I see these: Â Â The cache has plenty of spare space: Â When I click the Container Size button I see these, which doesn't look right to my unskilled eye: Â unraid-diagnostics-20230530-0850.zip Edited May 30, 2023 by mark2741 Added container size screenshots. Quote Link to comment
Solution JorgeB Posted May 30, 2023 Solution Share Posted May 30, 2023 Docker image is corrupt, delete and re-create. Quote Link to comment
mark2741 Posted May 30, 2023 Author Share Posted May 30, 2023 I tried following the steps to delete and re-create but eventually just formatted the cache drive and that worked. Marking this as solved. Quote Link to comment
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