I have installed the openstack one machine with conjure-up, in the start up guide "http://conjure-up.io/docs/en/users/#getting-started" said the localhost recommend "250G SSD with a seperate block device for ZFS. Our recommendation for that device is 100G." , how to setup the 100G ZFS block device to be used in openstack?

3 Answers 3


After installing conjure-up, you need to tell lxd to use the ZFS. You can do it by running

sudo lxd init

You can also point it straight at blockdevice /dev/sdb, if sdb1 doesn't exist. It will create the partition and pool automatically.

picture of the process

  • got following error: $ sudo lxd init Do you want to configure a new storage pool (yes/no) [default=yes]? Name of the new storage pool [default=default]: Name of the storage backend to use (dir or zfs) [default=dir]: zfs error: The requested backend 'zfs' isn't available on your system (missing tools).
    – Lai Eddy
    Mar 11, 2017 at 1:16

Don't know if this helps; but I've found useful informations at https://www.howtogeek.com/175159/an-introduction-to-the-z-file-system-zfs-for-linux/

If you have a second HD (say /dev/sdb) without any partition table and you want tp create a pool named "geek1" this is the command you have top use:

sudo zpool create -f geek1 /dev/sdb


If you are only configuring ZFS because you think you need to do it for a minimal dev install of Openstack, you can skip that.

From a clean install of Ubuntu 16.04.2:

sudo snap install conjure-up --classic

Then you can pretty much go "next next finish" through getting Openstack to run inside LXD. It takes a while to run. Note the Openstack URL on the last page of the procecss. Also, from the main host,

juju gui

is a helpful command.

If not a clean install of Ubuntu, you might have to clean up juju, lxd, or conjure-up. I prefer the wipe/reinstall method. But a derivative of the following could be useful:

sudo apt-get remove --purge juju
sudo apt-get remove --purge conjure-up
sudo apt-get remove --purge lxd

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