Problems with migrating to new pool

[Vayu Puthran]

I'm running FreeNAS-11.3-U2.1 on a ~5 year old Freenas Mini system. I just had one pool(let's call it Tank1) for all my data. I wanted to migrate my data to a new pool (Tank2) and retire my old pool. I replicated data from Tank2. Tank2 is operational.

Before removing Tank1, I wanted to ensure that there is no dependency on Tank1. So I made Tank1 read only to see if anything fails. I noticed 2 failures after that.

1. If I go to system->update and check for updates, it does not work. I get the error message the following error message
[Errno 30] Read-only file system: '/var/db/system/tmpdegc5vcz': Automatic update check failed. Please check system network settings.

2. My SMB service is broken. I tried turning off the service and turning it back on. It does not turn back on. Instead, I get the error message "SMB service failed to start."

If I make 'read only = off' again for Tank1, both of these problems go away. So it looks like there is some residual dependency on Tank1. I went through the settings to find that dependency and change it to Tank2. But I'm not able to find it. Could someone please help me find the dependency?

 

[sretalla]

[Errno 30] Read-only file system: '/var/db/system/tmpdegc5vcz': Automatic update check failed. Please check system network settings.

Where's your system dataset?

 

[Vayu Puthran]

Thank you! Changing the system dataset fixed the issue.