Azure Files mounted on Ubuntu fail after starting VM

Costa, Francesc (Color and Imaging Barcelona) 26 Reputation points
2021-02-15T17:33:00.85+00:00

Hi,

I have followed this tutorial and mounted Azure Files in Ubuntu persistently with /etc/fstab

https://learn.microsoft.com/en-us/azure/storage/files/storage-how-to-use-files-linux

My VM's at Azure are normally stop. I find out that sometimes when I start them for the first time the mount does not have the Azure Files. If I restart the VM, the problem normally disappears.

What can be the issue here?

Thanks in advance,

Francesc

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An Azure service that offers file shares in the cloud.
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  1. Costa, Francesc (Color and Imaging Barcelona) 26 Reputation points
    2021-02-17T17:14:34.86+00:00

    @deherman-MSFT

    Thanks. I am using Linux (ubuntu 18.04) and this is my fstab:

    CLOUD_IMG: This file was created/modified by the Cloud Image build process

    UUID=8c0a4742-2f51-40b4-b659-357cfb0bb2a3 / ext4 defaults,discard 0 0
    UUID=5BCE-FF6A /boot/efi vfat defaults,discard 0 0
    //evokerstorageuser.file.core.windows.net/3dsamples /mnt/evokerstorageuser/3dsamples cifs nofail,uid=azureuser,file_mode=0777,dir_mode=0777,vers=3.0,credentials=/etc/smbcredentials/evokerstorageuser.cred,serverino
    x-systemd.automount
    /dev/disk/cloud/azure_resource-part1 /mnt auto defaults,nofail,x-systemd.requires=cloud-init.service,comment=cloudconfig 0 2

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  2. deherman-MSFT 33,701 Reputation points Microsoft Employee
    2021-02-16T19:24:18.13+00:00

    @Costa, Francesc (Color and Imaging Barcelona)
    Since you are using Ubuntu you can try adding the option x-systemd.automount to /etc/fstab. If you are using an older version of Ubuntu you can try using _netdev. For some discussion on this issue you can checkout this StackExchange thread.

    Hope this helps. Let me know if you are still facing issues or have further questions.

    -------------------------------

    Please don’t forget to "Accept the answer" and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.

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  3. Costa, Francesc (Color and Imaging Barcelona) 26 Reputation points
    2021-02-17T05:53:43.987+00:00

    Thanks @deherman-MSFT

    I have added x-systemd.automount as a separate line in /etc/fstab but still the Azure Files don't get mounted at start-up.

    I also have run this: 

    After adding x-systemd.automount to an fstab line, you need to run:  

sudo systemctl daemon-reload  

and then one, or both, of the following:  

sudo systemctl restart remote-fs.target  
sudo systemctl restart local-fs.target  

only then will the automount become active.

    but the Azure Files do not get mounted.

    What else can I do?

    Why do they get mounted with restart the VM but not with start?

    Francesc

  4. Dmitry Kutetsky 1 Reputation point
    2021-04-09T13:55:22.113+00:00

    @Costa, Francesc (Color and Imaging Barcelona) , the /mnt directory are used by Azure/cloud-init as ephemeral storage as you can see in a fstab.
    As the simplest option, you can try mounting your share in another directory, like /data.

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