Can't access NFS shares that have snapshots

[phillxnet (Philip Guyton)]

@mattyvau Hello again:

Your findings are curios:

@mattyvau

a) remove the NFS mount definition from the web-UI due to permission errors

This brings to mind some immutable flags that especially older Rockstor versions tended to leave laying around. Take a look at the following forum post for @Jorma_Tuomainen’s notes:

Can't start rock-ons

Not docker, straced what it does and: # chmod 711 /mnt2/rockons chmod: changing permissions of ‘/mnt2/rockons/’: Operation not permitted

We also have, which may pertain to your:

@mattyvau

b) remove existing snapshots to at least go back to normal use until the NFS issue can be worked out

The following thread

[SOLVED] Cant delete empty snapshot folders created by Snapshot scheduled tasks

I’ve been playing with different automated ways of performing send/receive to allow for a more resilient backup setup and during this I noticed that in one of my shares I have what appears to be some orphaned directories that were created by the Scheduled task jobs I had created to perform snapshots on the shares. So for example, I have the following: [root@rockstor ]# tree -L 2 -a /mnt2/Docker-Persistent-Storage/ …

which in turn references similar immutable flag issues that were reported / worked around by @Haioken and @Rene_Castberg

Linked again here in case it’s relevant:

SOLVED: BTRFS Subvolume create/delete fail

Problem has been resolved, though I’m unsure why it had happened. Immutable flag was set on /mnt2/tempraid, meaning that the contents of /mnt2/tempraid was unmodifiable (though decendants could be altered). I know I didn’t set the flag, and according to BTRFS IRC, scrubs do not set the flag in the event of error. Problem was resolved with chattr -i /mnt2/tempraid Should have thought of it before - in fact, I could swear I checked it, but apparently I did not.

and

[solved] Unable to create new shares

Hi, hope you can help. Been playing with RS for about a week, so far so good. I’ve installed a plex server and all is running smoothly. now i’m trying to create a new share for transmission and it pops an error. recreate: storage > shares > create new here is the msg Error running a command. cmd = /sbin/btrfs subvolume create -i 2015/24 /mnt2/rockstor_rockstor/transm-data. rc = 1. stdout = [“Create subvolume ‘/mnt2/rockstor_rockstor/transm-data’”, ‘’]. stderr = [‘ERROR: cannot create subvolum…

Maybe there has been a similar rought immutable attribute that in hindering your circumstance.

Sorry I can’t put more time into this one at the moment. I’m hoping that now we have remove the AFP support we can focus more on improving what remains, ie samba and NFS mainly. And the NFS stuff hasn’t seen any attention for a while now.

Hope that helps.