linux-image-6.2.0-1016-azure cifs is not supported

Khaled AlAkhras 110

Ubuntu 22.04.3 LTS (GNU/Linux 6.2.0-1016-azure x86_64)

After upgrading from linux-image-6.2.0-1015-azure to linux-image-6.2.0-1016-azure, we are unable to mount cifs file shares.

sudo mount -a

mount error: cifs filesystem not supported by the system

mount error(19): No such device

Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) and kernel log messages (dmesg)

sudo lsmod | grep cifs

Huertas Penen, Silvana (UT-EEMCS) 25

jumping on this one,

running same kernel, and modprobe doesn't show it, it's also missing from lib/modules, however it's already installed.

Reinstalling the package and rebooting doesn't work

$ ls /lib/modules/6.2.0-1016-azure/kernel/fs/ 
9p  autofs  binfmt_misc.ko  btrfs  cachefiles  ceph  dlm  fat  fscache  fuse  isofs  lockd  netfs  nfs  nfs_common  nfsd  nls  overlayfs  udf  ufs  xfs 
$ modprobe cifs
modprobe: FATAL: Module cifs not found in directory /lib/modules/6.2.0-1016-azure 
$ uname -a 
Linux vmwfubowbg-007 6.2.0-1016-azure #16~22.04.1-Ubuntu SMP Tue Oct 10 17:11:51 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
$ apt-get install cifs-utils
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
cifs-utils is already the newest version (2:6.14-1ubuntu0.1).
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.

SCCMAdmin 86 Reputation points

2023-10-31T19:29:53.4466667+00:00

Hi,

the same problem. Kernel: 6.2.0-1016-azure.

command:

sudo mount -t cifs //storageaccount.file.core.windows.net/foldername /mnt/foldername -o vers=3.0,credentials=/etc/smbcredentials/storageaccount.cred,dir_mode=0777,file_mode=0777,serverino

result:

mount error: cifs filesystem not supported by the system

mount error(19): No such device

Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) and kernel log messages (dmesg)

How to resolve the problem?
Dan Marcoux 5 Reputation points

2023-10-31T19:58:42.7533333+00:00

I thought I was going crazy! I did my typical updates this morning, rebooted my VM, and could no longer mount my shares! Any answers yet?
SCCMAdmin 86 Reputation points

2023-10-31T21:06:27.3666667+00:00

Hi Microsoft,

I can´t map shared folders al storage accounts from my linux VM.

Time goes by, and there is no solution from you.

How to solve this problem?

any idea?
Nikki 76 Reputation points

2023-11-01T04:56:14.85+00:00

Same issue for me. This is critical to have fixed!
Sirigiri, Kiran Kumar 0 Reputation points

2023-11-23T05:20:17.5433333+00:00

Hi Microsoft Team,

We are also facing same issue, Would like to know when we could expect next kernel version with CIFS mount fix?

Thanks,

Kiran

Accepted answer

James Smith 175 Reputation points

2023-11-02T13:58:13.35+00:00
Functional workaround found in a different discussion.

The current workaround answer for new (i.e. no rollback kernel option) systems is to:

apt install -y linux-modules-extra-azure

Apparently the problem is that they moved the location of the CIFS driver from fs/cifs/ to fs/smb/client/, but didn't update the include file for building the base modules package to include the new path.

https://www.mail-archive.com/kernel-packages@lists.launchpad.net/msg514627.html
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20 people found this answer helpful.
Theo van Elsberg 0 Reputation points

2023-11-02T15:05:42.13+00:00

Thanks. This solved my problem

Jonathan.Hannay 0 Reputation points

2023-11-15T00:07:04.79+00:00

This should be accepted answer.

Khaled AlAkhras 110 Reputation points

2023-11-15T06:41:14.14+00:00

Will test again once a new kernel version is released.

Kevin S 0 Reputation points

2023-11-22T16:38:11.4833333+00:00

Encountered the same issue, already had linux-modules-extra-azure installed. Reinstalled the package and everything went back to normal.

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James Smith 175 Reputation points

2023-11-30T14:09:37.3166667+00:00

Update 2023-11-30: For a brief period this fix will not work. They have started to push the 1017 kernel which properly fixes the issue. But that means that by default doing an apt install -y linux-modules-extra-azure will not fix the issue. Because the default version of that package is 1017 as of this morning.

Instead since the default kernel for the images (again, as of this morning) is still 1016, you will need to specify the modules version to match the running kernel. apt-get install -y linux-modules-extra-6.2.0-1016-azure

Hopefully this fix will not be needed in the next day or two once they transition the 22.04 image to use the new 1017 kernel by default.

Khaled AlAkhras 110 Reputation points

2023-11-30T18:05:06.6466667+00:00

I tested 1017 kernel and it doesn't have the same problem. All cifs shares were mounted correctly.

Welcome to Ubuntu 22.04.3 LTS (GNU/Linux 6.2.0-1017-azure x86_64)

Brian Lopes 0 Reputation points

2024-04-02T18:14:22.85+00:00

Aqui também funcionou e uso o ambiente gcp, fiz apenas um ajuste no código final de azure para gcp.

Tks bro.
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8 additional answers

Nikki 76 Reputation points

2023-11-01T05:37:43.7+00:00
I was able to get my virtual machine running with mounted filesystem again by setting grub to boot to the old kernel rather than the newest.

vi /etc/default/grub GRUB_DEFAULT="1>2" sudo update-grub restart

Got the answer here: https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/kernel-related-boot-issues#bootingup-differentkernel-ARVMManual
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9 people found this answer helpful.
Khaled AlAkhras 110 Reputation points

2023-11-01T08:20:00.7066667+00:00

Thank you, Nikki. It is a good workaround for now until a new kernel is released.

SCCMAdmin 86 Reputation points

2023-11-01T15:55:49.62+00:00

Thanks Nikki Mirova. it works.

Yu Cui 0 Reputation points

2023-11-08T07:27:37.5866667+00:00

Bravo, it works!

Matthew Mckenzie 5 Reputation points

2023-11-12T22:39:27.56+00:00

Mind, that when the new kernel is released the bad kernel will now be #2, and they may both be bad, so test and pin.
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M Ponj 15 Reputation points

2023-11-02T09:05:30.09+00:00

This is critical issue for me, please can we have an update to this from Microsoft urgently?
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3 people found this answer helpful.

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Daniel Forsberg 10 Reputation points

2023-11-02T12:58:22.41+00:00

My understanding of the issue is that this sits with Canonical - https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/2042092. So not sure if MS can fix this per say, but rather Canonical needs to provide a fixed kernel image together with updated Ubuntu images that are then pushed to Azure for use when deploying new Ubuntu based VMs.
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2 people found this answer helpful.
L S 5 Reputation points

2023-11-02T13:05:49.5966667+00:00

Except they allowed this to enter the patching catalogue and be pulled by machines on auto update.

Nikki 76 Reputation points

2023-11-03T23:01:31.92+00:00

Was there some way I could have frozen my Azure VM kernel from auto-updates? I didn't even mean to update it. I was running apt upgrade for some other reasons, and I guess that updated the kernel?

SclX99 2 Reputation points

2023-11-07T07:24:38.28+00:00

Installing the linux-modules-extra-azure package as mentioned by @James Smith solved the issue for me. On the other hand, it would make sense to add this package to cifs-utils as a dependency.

Matthew Mckenzie 5 Reputation points

2023-11-11T22:28:42.56+00:00

Given that it is two years behind the bleeding edge it should have a fix upstream, even if it is not Ubuntu but Debian. I suspected it was the fuse3 issue, where is in multiple packages. Found this thread after I had built a new VM from scratch and it was failing out of the box. Azure should not have stock images that can't connect to their storage accounts. They should pin the last known good kernel or roll in the workaround.
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L S 5 Reputation points

2023-11-01T10:48:50.7533333+00:00

Please can we have an update to this from MS addressing this issue?
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1 person found this answer helpful.
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