Proxmox CIFS Store "ISO"-only as "Read-Only" possible?


Renowned Member
Sep 3, 2013
i would like to add a Windows Share, which holds all our Software-Installers and OS-ISOs, to Proxmox so that i can install ISO into new VMs WITHOUT first copying the iso to the local Proxmox-ISO-storage.
The problem is that this does not work if the Proxmox connects with a user that has no write-access to that share because Proxmox want to create some folders in those share.

If i try it with a share called "Software", i got this error-message
mkdir /mnt/pve/Software/template: Permission denied at /usr/share/perl5/PVE/Storage/ line 952. (500)

Is it possible to add a ISO-storage on a CIFS WITHOUT write access and without Proxmox trying to create folders?

Thanks a lot.
Last edited:
OK, i also tried now a second way.
Mounting the CIFS-share manually in a mount-point at Proxmox OS-level and then adding a "Folder"-Storage in Proxmox-GUI.

However, it again showed the same problems

  • Proxmox ALWAYS tries to create his own folder structure (e.g. /mountpoint/templates/iso) below the mountpoint.
  • Proxmox DID not show files that are NOT copied via Proxmox into the storage

It seems there is no way to use a already existing iso-storage somewhere in the network. There seems no way to prevent Proxmox from using his own folder-structure.
OK, i now hacked around a little bit about those restrictions, but in the end, well, such a scenario is not supported by Proxmox even if i think this is often seen.

i now created a local mountpoint /mnt/OS/template/iso and mounted my Share (which holds all iso in subfolders) into it.
Then i created a Folder-Storage(ISOs only) pointing to /mnt/ISO. This circumevents the creating of subfolders by Proxmox.
The problem is now that Proxmox-GUI shows ONLY the iso-files directly in those folder/share BUT NOT the ones stored in subfolders and displays also not the subfolders, making the whole thing unusable.

Well, this for that. Would be a nice thing if Proxmox would just allow (for storage like ISO-storage) to add a CIFS read-only AND using the WHOLE folderstructure just to access already existing read-only files.
Mostly Proxmox came into a enterprise AFTER they defined there storage structure....


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