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I'm trying to mount Azure File Share in Oracle Linux 7.7 and it doesn't work in the latest kernel 4.1.12-124.31.1.1.el7uek.x86_64 (released Sep 2019).

I know that I must use encryption when connecting from outside of Azure region, but I'm not sure if the File Share is in the same region as VM as I don't have access to the Azure Portal.

I have tried mounting with options vers=3.0 and vers=2.1, both give permission denied. I have tried with smbclient and that works without any issues.

Does anyone know if this Oracle UEK kernel supports the cifs protocol needed by Azure File Share? This article mentions kernel 4.11 is needed, but I thought Oracle backported it in their kernel.

Also is there any way to see which protocol version smbclient used to connect? Using -d 3 I can only see that it used NTLMSSP.

Marki555
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1 Answers1

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you should try to install UEK5 kernel (built on 4.14.x upstream) To get this kind of thing in-place, you just need to enable the UEK5 Yum channel and then update the system with "yum update" or the only kernel -- if you prefer -- with "yum update kernel-uek". UEK4 (4.1.12.*) is based on 4.1.12 upstream and so it's quite older than 4.11. For further details related to UEK and OL releases, you can check this page:

https://blogs.oracle.com/scoter/oracle-linux-and-unbreakable-enterprise-kernel-uek-releases

Simon Coter
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  • I see UEKR5 is default from OL7U6. Shouldn't it be automatically enabled and upgraded then? VM was deployed as 7.2 and I did `yum update` to 7.7. Or should I check in the future the releases and manually enable/upgrade to UEKR6 when that becomes available and default? – Marki555 Oct 28 '19 at 10:53
  • We do not force the upgrade of major kernel releases. If you started with OL7.2 with UEK4, you'll continue to get updates for UEK4 on your VM/Instance. If you want to switch to UEK5 kernel, you have to enable its proper Yum-Channel to then install/upgrade it. – Simon Coter Nov 20 '19 at 15:51