incubate freeipa server

infrastructure/graduated/arch/README.md

@@ -31,6 +31,7 @@ instructions for building a:
         - [Snapshots](#snapshots)
         - [Backups](#backups)
         - [Backing up a snapshot](#backing-up-a-snapshot)
+        - [Restoring a snapshot](#restoring-a-snapshot)
       - [Chroots](#chroots)
   - [Hardware Management](#hardware-management)
     - [Power Profiles](#power-profiles)
@@ -469,6 +470,7 @@ systemctl enable --now ufw
 #### btrbk
 
 ```bash
+sudo pacman -S mbuffer # for progress monitoring
 cd Downloads
 wget https://raw.githubusercontent.com/digint/btrbk/master/btrbk
 clamdscan .
@@ -627,7 +629,7 @@ Now set up the backup:
     Description=Runs btrbk with config file at /etc/btrbk/backups.conf
 
     [Service]
-    ExecStart=/usr/bin/btrbk -c /etc/btrbk/backups.conf -v run
+    ExecStart=/usr/bin/btrbk -c /etc/btrbk/backups.conf --progress run
     ```
 
 3. Create a timer to activate the service
@@ -662,6 +664,17 @@ pacman -S pv
 btrfs send /mnt/btr_backup/root.20230727T1000 | pv | btrfs receive /mnt/btr_iscsi
 ```
 
+##### Restoring a snapshot
+
+```bash
+export ROOT_SNAPSHOT_NAME=<name>
+export HOME_SNAPSHOT_NAME=<name>
+rsync -av --delete /btr_pools/root/.snapshots/${ROOT_SNAPSHOT_NAME}/ /btr_pools/root/root/
+rsync -av --delete /btr_pools/root/.snapshots/${HOME_SNAPSHOT_NAME}/ /btr_pools/root/home/
+pacman -Syu # This is only required if you're restoring a snapshot from an old kernel
+reboot
+```
+
 #### Chroots
 
 You can create chroot environments to run firejails or just use for testing purposes.