Rename btrfs subvolumes

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/configs/persist/impermanence.sh

@@ -9,17 +9,17 @@ delete_subvolume_recursively() {
 mkdir -p /mnt/btrfs
 mount /dev/mapper/luks /mnt/btrfs
 
-if [[ -e /mnt/btrfs/root ]]; then
-  mkdir -p /mnt/btrfs/root.bak
-  timestamp=$(date --date="@$(stat -c %Y /mnt/btrfs/root)" "+%Y-%m-%-d_%H:%M:%S")
-  mv /mnt/btrfs/root "/mnt/btrfs/root.bak/$timestamp"
+if [[ -e /mnt/btrfs/@ ]]; then
+  mkdir -p /mnt/btrfs/@.bak
+  timestamp=$(date --date="@$(stat -c %Y /mnt/btrfs/@)" "+%Y-%m-%-d_%H:%M:%S")
+  mv /mnt/btrfs/@ "/mnt/btrfs/@.bak/$timestamp"
 fi
 
-find /mnt/btrfs/root.bak/ -maxdepth 1 -mtime +14 | while IFS= read -r i; do
+find /mnt/btrfs/@.bak/ -maxdepth 1 -mtime +14 | while IFS= read -r i; do
   delete_subvolume_recursively "$i"
 done
 
-btrfs subvolume create /mnt/btrfs/root
+btrfs subvolume create /mnt/btrfs/@
 
 umount /mnt/btrfs
 rmdir /mnt/btrfs

hosts/common/scripts/cleanup/cleanup.sh

@@ -19,13 +19,13 @@ fi
 mkdir -p /mnt/btrfs
 mount /dev/mapper/luks /mnt/btrfs
 
-if [[ -e /mnt/btrfs/root.bak ]]; then
-  if [ "$(ls -A /mnt/btrfs/root.bak)" ]; then
-    for i in /mnt/btrfs/root.bak/*; do
+if [[ -e /mnt/btrfs/@.bak ]]; then
+  if [ "$(ls -A /mnt/btrfs/@.bak)" ]; then
+    for i in /mnt/btrfs/@.bak/*; do
       delete_subvolume_recursively "$i"
     done
   else
-    echo "/mnt/btrfs/root.bak is empty. Nothing to delete."
+    echo "/mnt/btrfs/@.bak is empty. Nothing to delete."
   fi
 fi
 

hosts/eirene/format.nix

@@ -44,20 +44,20 @@
                 type = "btrfs";
                 extraArgs = [ "-f" ];
                 subvolumes = {
-                  "/root" = {
+                  "@" = {
                     mountpoint = "/";
                   };
-                  "/persist" = {
+                  "@persist" = {
                     mountpoint = "/persist";
-                    mountOptions = [ "subvol=persist" "compress=zstd" "noatime" ];
+                    mountOptions = [ "compress=zstd" "noatime" ];
                   };
-                  "/nix" = {
+                  "@nix" = {
                     mountpoint = "/nix";
-                    mountOptions = [ "subvol=nix" "compress=zstd" "noatime" ];
+                    mountOptions = [ "compress=zstd" "noatime" ];
                   };
-                  "/cache" = {
+                  "@cache" = {
                     mountpoint = "/cache";
-                    mountOptions = [ "subvol=cache" "compress=zstd" "noatime" ];
+                    mountOptions = [ "compress=zstd" "noatime" ];
                   };
                 };
               };