Problem running on a vmware 6.5 esx system

        Traceback (most recent call last):

File “/opt/rockstor/src/rockstor/rest_framework_custom/”, line 41, in _handle_exception
File “/opt/rockstor/src/rockstor/storageadmin/views/”, line 320, in post
return self._update_disk_state()
File “/opt/rockstor/eggs/Django-1.8.16-py2.7.egg/django/utils/”, line 145, in inner
return func(*args, **kwargs)
File “/opt/rockstor/src/rockstor/storageadmin/views/”, line 265, in _update_disk_state
p.uuid = btrfs_uuid(
File “/opt/rockstor/src/rockstor/fs/”, line 1000, in btrfs_uuid
[BTRFS, ‘filesystem’, ‘show’, ‘/dev/disk/by-id/%s’ % disk])
File “/opt/rockstor/src/rockstor/system/”, line 110, in run_command
raise CommandException(cmd, out, err, rc)
CommandException: Error running a command. cmd = /sbin/btrfs filesystem show /dev/disk/by-id/sda3. rc = 1. stdout = [’’]. stderr = [‘ERROR: not a valid btrfs filesystem: /dev/disk/by-id/sda3’, ‘’]

@Rupert_Chandler Welcome to the Rockstor community forum. Your reported error is down to Rockstor’s requiring serial numbers for each of it’s devices. If you ensure that your hyper visor makes this provision then all should be well. It is because we depend on by-id names and they are not generated by udev unless a unique serial is available for every attached disk. Such as is the case with real hardware. We do have an open issue to address this within our docs under the minimum system requirements section:

The technical explanation as to why we do this is also available in our wiki technical manual section intended for developers:

Subtitled “Rockstor’s Serial Obsession”.

Hope that helps and we do plan to improve the message in this scenario in the near future.

hi phil, thanks for the quick response… ok!

does anyone in rockstor land have any ideas on adding disk serials within a esx 6.5 system?

will investigate from the vmware end, but if anyone has sussed this i’d love to know…


@Rupert_Chandler Hello again.
I think the config element you are after is:


Please see the following forum post by @Robsi:

Hope that helps. There are a number of other forum posts detailing this config option but this was the first I found.



to the vmx file of the guest rockstore VM.

1 Like

great thanks chaps!!!

will give it a go tomorrow…


worked beautifully… thanks for the help…