Changes between Version 10 and Version 11 of FreeBSD ZFS Backup & Restore Full Instructions

Timestamp:

02/01/24 06:11:18 (12 months ago)

Author:

Paul Kulda

Comment:

--

FreeBSD ZFS Backup & Restore Full Instructions

@@ -15 +15 @@
   * Example if you are backing up a 2TB system you will need an external 2TB drive
   * Or 2TB avaliable on the nfs network share
+  * please be aware on the actual data size gets backed up but best to be safe.
 
 * Next you need to consider the following before proceeding.
   * FreeBSD Live CD does not allow mounting of zfs pools etc (which you dont want anyways for a restore)
-  * It also does not allow mounting of ntfs (windows) file system
-    * best suggetion is to format an external usb drive using '''newfs''' 
-    * or backup to a network nfs share (also supported on the LiveCD
+  * It also does not allow mounting of ntfs (windows) file system 
+    *(which means dont save your backup on a windows formated device)
+  * best suggetion is to format an external usb drive using '''newfs''' 
+  * or backup to a network nfs share (also supported on the LiveCD)
 
 
 * to '''backup''' the zfs volume do the following :
-  * '''zfs snapshot zroot/ROOT/default@backup'''
+  * '''zfs snapshot zroot/ROOT/default@backup''' (this makes a snapshot of the zfs file structure)
   * then to do the actual backup
-  * '''zfs send zroot/ROOT/default@backup > backup.zfs''' (destination file does not matter but the @backup does, restore name must match.
+  * '''zfs send zroot/ROOT/default@backup > backup.zfs''' 
+    * destination file does not matter but the @backup does, restore name must match.
+    * if you use '''zroot/ROOT/default@backup'''
+    * you must restore with the same mountpoint info
   * please '''Do Not''' zip the file
   * you can for archiving purposes, but you need the raw file to restore.
@@ -32 +37 @@
     * FreeBSD for some reason makes extra mount points on a default install
     * I took the time to sort that out and stripped my backup down to the root only.
+    * you will need to consider this for both the pools being backed up and restored.
 
 
 
-* to restore a backup file to the zfs volume do the following :
+* To restore a backup file to the zfs volume do the following :
   * You need to load FreeBSD from the cd as per usual, only the minimum install is required
   * Make sure that you are only installing to one hdd,