GitHub user mwaag added a comment to the discussion: VMWare to KVM Migration 
fails - "nbdcopy command failed"

Ok, this is a more complicated one (although it seems so easy to achieve):

Its Netapp Storage and since the no_root_squash option isnt supported directly, 
according to docs you can reach it with special export settings...
![21_52_28-000191](https://github.com/user-attachments/assets/dd1f4c82-ae35-498c-9603-ed2f6aef3f00)
![21_52_52-000192](https://github.com/user-attachments/assets/13955ec8-1994-4f8e-a0cc-97b262370dbe)

My export ist setup like that.

An additional Problem here is client and server defaults to NFSv4 and this adds 
a check for matching domain-strings, see here:
https://www.reddit.com/r/netapp/comments/175ppl1/why_nfs_is_owned_by_nobodynobody/
and here
https://www.youtube.com/watch?app=desktop&v=UfaJTYWSVAY

I can see the nss-error in my kvm-host-log.
```
May 10 20:20:11 b-kvm-test-001 nfsidmap[7265]: nss_name_to_gid: name 
'r...@defaultv4iddomain.com' does not map into domain 'test.example.de'
```
Manipulating /etc/idmap.conf for matching domains solved that. 
(Domain = defaultv4iddomain.com).

Will keep that in mind for production.

Migration of my first test-vm worked now. Therefore, Issue can be closed. 
Thanks alot.



GitHub link: 
https://github.com/apache/cloudstack/discussions/10841#discussioncomment-13101904

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