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I keep getting back to this same issue that occurs on a VM.

Proxmox Virtual Environment 5.4-3 Running a VM of Ubuntu 19.04

Every few days the file system goes read-only with errors like:

systemd-journald[400]: Failed to write entry (25 items, 690 bytes), ignoring: Read-only filesystem

I end up running this, which fixes the problem. How to fix "sudo: unable to open ... Read-only file system"?

Sudo fsck.ext4 -f /dev/sda1

checking dmesg, I see the following errors

EXT4-FS (sda2): mounted filesystem with ordered data mode. Opts: (null)
EXT4-FS (sda2): re-mounted. Opts: (null)

Any ideas what is causing this or how I can prevent it?

Adrian
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  • AFAIK the usual cause of a file system remounted R/O is a hardware error on the device. Of course in a VL it could be a real hardware error, or some error in the virtualization code. – xenoid Sep 14 '19 at 23:52
  • Classic symptom of a faulty hard drive, not an Ubuntu issue. Test your hardware using the host OS. Check your host virtualization software's support - look for improper storage settings or matching bug reports.. – user535733 Sep 15 '19 at 06:18

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