-SUBSYSTEM=="block", KERNEL!="ram*|loop*", ENV{DM_UUID}=="CRYPT-*", ENV{ID_PART_TABLE_TYPE}=="", ENV{ID_FS_USAGE}=="", ENV{SYSTEMD_READY}="0"
+# Ignore raid devices that are not yet assembled and started
+SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", KERNEL=="md*", TEST!="md/array_state", ENV{SYSTEMD_READY}="0"
+SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", KERNEL=="md*", ATTR{md/array_state}=="|clear|inactive", ENV{SYSTEMD_READY}="0"
+
+# Ignore loop devices that don't have any file attached
+SUBSYSTEM=="block", KERNEL=="loop[0-9]*", TEST!="loop/backing_file", ENV{SYSTEMD_READY}="0"
+
+# Ignore nbd devices in the "add" event, with "change" the nbd is ready
+ACTION=="add", SUBSYSTEM=="block", KERNEL=="nbd*", ENV{SYSTEMD_READY}="0"