initial import

bin/openhome.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+#
+# /dev/sda2 -> /home
+# installed packages: cryptsetup keyutils
+# loaded modules: dm_crypt
+#
+# prep/test:
+#  cryptsetup -h sha256 -c aes-xts-plain64 -s 512 luksFormat /dev/sda2
+#  cryptsetup luksOpen /dev/sda2 chome
+#  mkfs.ext4 -E lazy_itable_init=0,lazy_journal_init=0 /dev/mapper/chome
+#  touch /home/.undermnt
+#  mount /dev/mapper/chome /home
+#  umount /home
+#  cryptsetup luksClose cdata
+
+_DEV=/dev/sda2
+_LUKS=chome
+_MOUNT=/home
+
+# LUKS
+if [[ ! -e /dev/mapper/${_LUKS} ]]; then
+  sudo cryptsetup luksOpen ${_DEV} ${_LUKS}
+fi
+# mount
+if [[ ! -e /dev/mapper/${_LUKS} ]]; then
+  echo "luksOpen failed"
+  exit 1
+else
+  if ! mountpoint -q ${_MOUNT}; then
+    sudo mount /dev/mapper/${_LUKS} ${_MOUNT}
+  fi
+fi
+# verify
+if mountpoint -q ${_MOUNT}; then
+  df -h ${_MOUNT}
+else
+  echo "mount failed"
+fi