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File Level Restore - FUSE mount is not supported on kernel versions 4.0.0-4.1.33.

KB ID: 2684
Product: Veeam Agent for Linux | 3.0 | 4.0 | 5.0 | 6.0 | 6.1 | 6.2 | 6.3 | 6.3.1 | 6.3.2
Published: 2018-07-11
Last Modified: 2024-05-30
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This issue is related to a known kernel bug. As such, it will affect any version of Veeam Agent for Linux.

Challenge

When performing guest files recovery from a backup of a Linux machine that was using Linux Kernel versions 4.0.0 through 4.1.33, the restore fails to mount with the error:

FUSE mount is not supported on kernel versions 4.0.0-4.1.33. Upgrade the kernel and try again.

Cause

FUSE mounts on the mentioned kernels fail due to a known kernel bug, which was fixed in later kernel versions.

Solution

The general recommendation is to upgrade the kernel to a more recent version. 

However, in some distributions, the fix was backported to those older kernels. In such a scenario, it is possible to force Veeam Agent for Linux to attempt the mount despite the detected kernel version:

Note: This will only work if, in fact, the kernel installed contains the backported solution for the known kernel bug.

  1. Open the Veeam Agent for Linux global configuration file —  /etc/veeam/veeam.ini
  2. Uncomment the line ‘ignoreFuseBug’ and change the value from ‘false’ to ‘true’, and save the file.
fusebug true
  1. Restart the ‘veeamservice’ service to apply changes.
  2. Retry the restore.

 

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