We are running a Ubuntu 10.04 VM on a Hyper-V system,
The VM is dedicated to running one of our web applications.
We have enabled the Hyper-V drivers in
/etc/initramfs-tools/modules like so:
hv_vmbus hv_storvsc hv_blkvsc hv_netvsc
And updated the kernel image like so:
$ update-initramfs -u
And all was good... until..
This morning i got a support request that our web application was throwing an error 500, so i checked the logs and nothing was there.
Then I remembered that I had seen this on another of our ubuntu servers so I...
$ touch foo.txt
And my suspicions were confirmed:
touch: cannot touch `foo.txt': Read-only file system
Why is the filesystem randomly becoming readonly?
Is this only in Ubuntu on HV? Is it a problem on RedHat or Cent?