KB450288 – Changing from FreeNAS to Houston on Centos7 or Ubuntu 20.04

Last modified: March 8, 2021
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Changing from FreeNAS to Houston on Centos7 or Ubuntu 20.04

Scope/Description:

Moving an existing FreeNAS pool to Houston – Centos7 or Ubuntu20.04

Prerequisites:

A FreeNas pool configured and Houston boot drives or Centos 7/Ubuntu20.04  ISO

Steps:

FreeNAS:

  • Take note of everything configured (Share, Groups-Users, IPs)
  • Export the pool through the Web UI by detaching the pool. Click the cog on the pool and click detach

  • To confirm export run “zpool import” in the shell
  • Now remove the boot drives and switch to Centos7

Houston:

  • Boot the system and log into Houston
  • Perform a “yum update” if on CentOS 7, or “apt update && apt upgrade” if on Ubuntu
  • root@45drives:~# yum update
    root@45drives-ubuntu:~# apt update && apt upgrade
  • to import the pool first check the pool is being picked up by running “zpool import”

  • Run “dmap” and “lsdev”
  • root@45drives:~# dmap
    root@45drives:~# lsdev

  • Go to the ZFS tab and click import pool

  • Go to the shell and run “zpool status” to confirm
  • root@45drives:~# zpool status

  • Run “zpool upgrade (poolname)”
  • root@45drives:~# zpool upgrade poolname

  • Delete all the extra unused FreeNAS datasets

  • Follow the Houston Configuration guide

KB0450255 – CentOS Configuration Guide

 

 

Verification:

Troubleshooting:

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