diff --git a/scripts/blkdeactivate.sh.in b/scripts/blkdeactivate.sh.in
index 7c517b87b..e51a33778 100644
--- a/scripts/blkdeactivate.sh.in
+++ b/scripts/blkdeactivate.sh.in
@@ -34,11 +34,11 @@ TOOL=blkdeactivate
 DEV_DIR="/dev"
 SYS_BLK_DIR="/sys/block"
 
-MDADM="/sbin/mdadm"
-MOUNTPOINT="/bin/mountpoint"
-MPATHD="/sbin/multipathd"
-UMOUNT="/bin/umount"
-VDO="/bin/vdo"
+MDADM="@mdadm@/bin/mdadm"
+MOUNTPOINT="@util_linux@/bin/mountpoint"
+MPATHD="@multipath_tools@/bin/multipathd"
+UMOUNT="@util_linux@/bin/umount"
+VDO="@vdo@/bin/vdo"
 
 sbindir="@SBINDIR@"
 DMSETUP="$sbindir/dmsetup"
@@ -48,7 +48,7 @@ if "$UMOUNT" --help | grep -- "--all-targets" >"$DEV_DIR/null"; then
 	UMOUNT_OPTS="--all-targets "
 else
 	UMOUNT_OPTS=""
-	FINDMNT="/bin/findmnt -r --noheadings -u -o TARGET"
+	FINDMNT="@util_linux@/bin/findmnt -r --noheadings -u -o TARGET"
 	FINDMNT_READ="read -r mnt"
 fi
 DMSETUP_OPTS=""
@@ -57,10 +57,10 @@ MDADM_OPTS=""
 MPATHD_OPTS=""
 VDO_OPTS=""
 
-LSBLK="/bin/lsblk -r --noheadings -o TYPE,KNAME,NAME,MOUNTPOINT"
+LSBLK="@util_linux@/bin/lsblk -r --noheadings -o TYPE,KNAME,NAME,MOUNTPOINT"
 LSBLK_VARS="local devtype local kname local name local mnt"
 LSBLK_READ="read -r devtype kname name mnt"
-SORT_MNT="/bin/sort -r -u -k 4"
+SORT_MNT="@coreutils@/bin/sort -r -u -k 4"
 
 # Do not show tool errors by default (only done/skipping summary
 # message provided by this script) and no verbose mode by default.
@@ -102,6 +102,7 @@ declare -A SKIP_VG_LIST=()
 # (list is an associative array!)
 #
 declare -A SKIP_UMOUNT_LIST=(["/"]=1 \
+                             ["/nix"]=1 ["/nix/store"]=1 \
                              ["/lib"]=1 ["/lib64"]=1 \
                              ["/bin"]=1 ["/sbin"]=1 \
                              ["/var"]=1 ["/var/log"]=1 \