Remote backup failing because of path

[DeusExMachina]

Hello,
I've been using Proxmox for a couple of months now, and so far it's been a very pleasant experience. I have found one problem though. I am doing remote backups to Acronis cloud environment. Everything has been working fine, but recently I created a nfs share for all of my isos so I don't have to worry about copying them to each of my Proxmox servers individually. When the NFS share is enabled I am getting the error below. When the NFS share is disabled the remote backup works as expected. I'm guessing this has something to do with the default path for pve, but I haven't been able to figure out how to verify or change it. If anyone has any input on how to fix this I would appreciate it.

Command '/usr/bin/qemu-img create -f qcow2 /mnt/pve/ISO/Acronis-106-drive-virtio0-202609100530593342474.qcow2 60G' failed with error 'qemu-img: /mnt/pve/ISO/Acronis-106-drive-virtio0-20260910050593342474.qcow2: Could not create '/mnt/pve/NFSISO/Acronis-106-drive-virtio0-202609100530593342474.qcow2': Read-only file system

 

[alexskysilk]

/mnt/pve/ISO/Acronis-106-drive-virtio0-20260910050593342474.qcow2: Could not create '/mnt/pve/NFSISO/Acronis-106-drive-virtio0-202609100530593342474.qcow2': Read-only file system

you dont have write access to /mnt/pve/ISO. check owners/permissions on the remote filesystem and/or nfs export. I also dont think you meant to use that location as your vdisk destination.

 

[DeusExMachina]

you dont have write access to /mnt/pve/ISO. check owners/permissions on the remote filesystem and/or nfs export. I also dont think you meant to use that location as your vdisk destination.

That's correct, the NFS mount is RO, which is on purpose. I should have been clearer. My problem is that the path to write the backup changes whether the nfs mount is enabled or disabled through Proxmox. I don't want this device to ever be used for backups. I want to set the default path but I can't find that.

 

[alexskysilk]

pay closer attention to what the error is telling you.

Youre trying to create a virtual machine using /mnt/pve/iso as the DESTINATION STORAGE.

there are two things you should do- first, go to datacenter-storage, select iso, and UNCHECK disk image and container.

Next, pay closer attention to the storage selection in the "disks" tab when you're creating a VM.