Changes between Version 6 and Version 7 of FreeBSD ZFS Backup & Restore Full Instructions

Timestamp:

02/01/24 05:57:48 (4 months ago)

Author:

Paul Kulda

Comment:

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FreeBSD ZFS Backup & Restore Full Instructions

@@ -35 +35 @@
 * 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, 
+    * i had extra ones and the recovery did not work.
+    * as the boot loader was looking for other hdd's that did not exist.
   * When you load FreeBSD on a new drive intended for the restore
   * You will need to duplicate the structure of the way it was backed up.
-  * for example i had to do a bunch of '''zfs destroy <mount i dont need>'''
+  * for example i had to do a bunch of '''zfs destroy <mount point(s) i dont need>'''
+    * you need to do a normal book after installing FreeBSD
+    * and remove the pools
+    * after removing the extra pools (if needed)
+    * reboot and make sure the pool structure is exactly the same as the backup was.
   * before i could restore the file.
-  * also keep in mind you probablyu have to backup all mount points seperately and restore them seperately ?
+  * also keep in mind you probably have to backup all mount points seperately and restore them seperately ?
+  * (why i took the time to strip the extra zfs mount points down to a single one)
   * Launch the Installer CD (ZFS Versions must match or be higher, best to use the same Installer for all)
-    * Once logged into the LiveCD you WILL need to '''zfspool import zroot'''
+    * Once logged into the LiveCD you WILL need to '''zpool import zroot'''
     * It will not mount but it loads the drivers needed to access the volume
-    * next you will need to make a mount point for your data
+    * You should get an error saying unable to mount to read only file system, this is GOOD!
+    * next you will need to make a mount point for your data (the file that has your drive backup)
     * use /tmp/<mountpoint> as it is already in ram and will allow mounts.
     * i used '''/tmp/tmp''' for example