Disk not mounted after VM stop/start

Question

_{Tuesday, January 31, 2017 6:01 PM}

I stopped (did not deallocate) and started my Linux VM the other day, only to find that a disk that was mounted is gone. I've updated and rebooted the VM from the SSH CLI before with no problems.

The big problem is that I don't know which disk was mounted, so I can't just re-mount it. How can I find out what was mounted before the VM stopped?

All replies (1)

_{Wednesday, February 1, 2017 12:44 PM}

Hello,

To ensure the drive is remounted automatically after a reboot it must be added to the /etc/fstab file. In addition, it is highly recommended that the UUID (Universally Unique IDentifier) is used in /etc/fstab to refer to the drive rather than just the device name (i.e. /dev/sdc1). Using the UUID avoids the incorrect disk being mounted to a given location if the OS detects a disk error during boot and any remaining data disks then being assigned those device IDs. To find the UUID of the new drive, you can use the blkid utility:

bash

sudo -i blkid

You can now test that the file system is mounted properly by unmounting and then remounting the file system, i.e. using the example mount point /datadrive created in the earlier steps:

Copy

bash

sudo umount /datadrive

sudo mount /datadrive

If the mount command produces an error, check the /etc/fstab file for correct syntax. If additional data drives or partitions are created, enter them into /etc/fstab separately as well.

Make the drive writable by using this command:

Copy

bash

sudo chmod go+w /datadrive

Check here; For more information on this scenario.

Regards,
Sumanth BM

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