Differences

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--- userdoc:tt_tarsnap_online_backup [2018/09/29 10:10]
abelbeck [Restore to a New Install]
+++ userdoc:tt_tarsnap_online_backup [2019/11/21 10:18] (current)
mkeuter [Restore to a New Install]
@@ Line 148: / Line 148: @@
   tarsnap-backup --uninstall-cronjob
+!!Tip:!! Don't use a cronjob between 02:00 and 03:00 in the night, because of DST switching :-).
 \\
@@ Line 175: / Line 177: @@
 !!Note ->!! If you restore to a different media than the original, you need to run this command afterwards to re-create the [[https://www.tarsnap.com/cachedir.html|cache directory]] and to be able to create backups again ((This option is not listed in the program help!)):
-  tarsnap –-fsck
+  tarsnap --fsck
 \\
@@ Line 182: / Line 184: @@
 It is quite useful to use a Tarsnap Backup to restore a machine following a new install.  This may occur after a disk failure or an upgrade to different hardware.
-!!Note ->!!  It is best practice that every instance (''--machine'') has a unique ''tarsnap.key'', and the previous disk/hardware is no longer used.
+!!Note ->!!  It is best practice that every instance (''--machine'') has a unique ''tarsnap.key'', and the previous disk/hardware is no longer used with the same ''tarsnap.key''.
+!!Warning ->!! You should not use a Tarsnap Backup to "clone" an active system to create a new install, as that will duplicate private keys (SSH, VPN, etc.) which must be unique across deployed systems.
+First, configure AstLinux using the standard **[[userdoc:new-install|New Install]]**.\\
+Set the "Management Password" via the web interface, it may be different from what is archived in the Tarsnap Backup if you wish.
+Then, using the CLI, create the tarsnap directory:
+  mkdir /mnt/kd/tarsnap
+Copy the stored unique ''tarsnap.key'' to ''/mnt/kd/tarsnap/''
+Restore all the ''/mnt/kd'' files from the previous ''kd'' archive:
+  tarsnap -xvf machine-kd-archive -C /mnt/kd
+!!Note ->!! We are skipping restoring the ''machine-asturw-archive'' to ''/oldroot/mnt/asturw'' as it may be hardware specific and the "Management Password" was set above.
+Resync the tarsnap cache directory:
+  tarsnap --fsck
+Finally, Reboot the system to use the restored data.
 \\
-===== Nuke All
+===== Nuke All Archives =====
-Archives =====
 There may be a time when you want to delete all the stored archives associated with a ''tarsnap.key''.  The ''--nuke'' option only applies to the ''/mnt/kd/tarsnap/tarsnap.key'' generated archives.  If you have other keys on other boxes, their associated archives will not be effected.