Reviewed: 2017-07-14
Product Version:
AhsayOBM / AhsayOBR: 7.13.0.0 to 7.x
OS: Windows
ATTENTION 1st January, 2022: v7 officially End-of-Life [details] ===== Description ===== When performing a granular restore of a Hyper-V guest VM installed with Linux Operating System the following error message is shown by AhsayOBM "Failed to mount virtual disk "%virtual_disk_name%.vhd" (No Valid Partition Found)" .
![](http://wiki.ahsay.com/lib/exe/fetch.php?media=public:5254_0.png)
===== Cause ===== Granular restore of Hyper-V guest VMs with non-Windows partitions is not supported. For example, guest VMs installed with Linux or Unix operating systems.
===== Resolution ===== To resolve this problem we recommend you either:
-
Use RunDirect to power on the Linux or Unix guest VM to allow access the files/folders on the drive.
or - Restore the Linux or Unix guest VM to Hyper-V host and power on the guest to access the files/folders on the drive.