I'm running Ubuntu 16.04. I rebooted my server today as it wasn't responding.
When I rebooted the root FS was read only. I booted a live Ubuntu CD and checked the drive with the results shown in attachment btrfs-check.log. The error was still there after completing the btrfs check --repair :( And when I deleted some old subvolumes from there after that the filesystem went read-only with a bunch errors in dmesg which are in the attached file btrfs-dmesg-errs.log. Of course my last backup was longer ago than I like to think about. Though I could restore back to about 8 months ago, I'd very much prefer not to ... On my bootable CD the Kernel is 4.18.3 and btrfs-progs is 4.7.3-1 HELP!!! If do have enough space to copy stuff off the root volume but I think I'll need hand holding through the recovery process. The volume has sub-volumes called @ and @home which are mounted as / and /home respectively. Thanks David
btrfs-check.log
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btrfs-dmesg-errs.log
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