@tom-elliott
It turns out that the crappy HP procurve 1900 switch that my xenserver was connected to has a feature called “auto DOS” that was blocking the NFS packets. I installed a couple of physical Linux systems to test with and found that I could mount the NFS shares when I was plugged into a different switch.

All works as it should after turning off “auto Dos” under security settings on the switch. The crazy thing is that I had a working fog server for years on this same switch/xenserver. Time to upgrade that switch. Anyway, thanks for all your help. Much appreciated!

@tom-elliott
It turns out that the crappy HP procurve 1900 switch that my xenserver was connected to has a feature called “auto DOS” that was blocking the NFS packets. I installed a couple of physical Linux systems to test with and found that I could mount the NFS shares when I was plugged into a different switch.

All works as it should after turning off “auto Dos” under security settings on the switch. The crazy thing is that I had a working fog server for years on this same switch/xenserver. Time to upgrade that switch. Anyway, thanks for all your help. Much appreciated!

no rules in iptables. I flushed them with iptables -F.

root@fogserver:/# iptables -L -n
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
root@fogserver:/#

Disabled. Thanks, forgot to mention that.

Hello,

I have a new fog install that is having issues with mounting the NFS folder. I get this error when I schedule an upload task: could not mount images folder (/bin/fog.upload)

Reason: mount: mounting x.x.x.x:/images/dev on /images failed: connection timed out.

I scheduled an upload task with debug set and I am unable to manually mount the NFS filesystem from within the debug environment on the laptop I am testing with. I get the same timeout. There are no firewalls turned on on the fogserver.

I am running the latest stable version of fog and have set NFS to use version 3 by setting --no-nfs-version 4 in /etc/default/nfs-kernel-server. I have tested that NFS works from one of my CentOS 7 systems. I am able to mount the /images folder on the CentOS system and I am also able to mount a test export from my CentOS system on my Debian 9.5 fog server. It seems that NFS works everywhere except for from the PXE booted fog environment. I have verified the permissions on /images and /images/dev.

What am I missing? Any help would be appreciated.