[SOLVED] after restore unable to mount NFS on container

[deang]

Hi,
I have a proxmox v6 host. I made a backup of CT105 from the gui. Then I went to my container 105 (happens to be CentOS 7) and I did a yum update. But after the update I could no longer mount the NFS4 file system shares. It is an external NFS server called lurch not part of proxmox. Up until now I was able to mount the file shares from the lurch fileserver. Since this is a production web server I then immediately did a restore of the CT 105 from the backup I had done. But Now that the CT 105 is restored to the backup from a few hours ago, I am still unable to mount NFS shares. I don't understand. It was working a few hours ago so it should be working now that I've restored the CT 105. The error is:

mount.nfs: Operation not permitted


On the proxmox host I can successfully mount the file systems on the NFS server host. I couldn't find anything in the research I did that pertained specifically to this issue. In my "options" for CT 105 it says "unprivilaged container=yes" and "features=mount=nfs,nesting=1" and I'm pretty certain that is the way it was before.

Note: the CT105 can successfully ping the lurch NFS server.

Note: I created a NFS share on the proxmox host and exported it to CT105. It also gives

mount.nfs: Operation not permitted

Note: iptables is turned off now, but still has operation not permitted

thanks -- dean

 

[deang]

I'm not entirely positive, but now that I think about it, I created this CT as "privileged". But after the restore, I *think* that it changed it to
"non privileged" CT.

 

[deang]

I figured it out. When doing a "restore" of a CT, proxmox defaults to "non priviliged" when restoring the CT. In the restore dialog box you have to specifically uncheck "non priviliged" to get the CT to be restored as a priviliged CT like it was in the beginning.