diff --git a/test/TEST-64-UDEV-STORAGE/test.sh b/test/TEST-64-UDEV-STORAGE/test.sh
index b9e7bdf18a..9d4c90f88e 100755
--- a/test/TEST-64-UDEV-STORAGE/test.sh
+++ b/test/TEST-64-UDEV-STORAGE/test.sh
@@ -268,24 +268,15 @@ testcase_virtio_scsi_identically_named_partitions() {
     # and attach them to a virtio-scsi controller
     local qemu_opts=("-device virtio-scsi-pci,id=scsi0,num_queues=4")
     local diskpath="${TESTDIR:?}/namedpart0.img"
-    local i lodev num_disk num_part qemu_timeout
+    local i num_disk qemu_timeout
 
     if get_bool "${IS_BUILT_WITH_ASAN:=}" || ! get_bool "$QEMU_KVM"; then
         num_disk=4
-        num_part=4
     else
         num_disk=16
-        num_part=8
     fi
 
     dd if=/dev/zero of="$diskpath" bs=1M count=18
-    lodev="$(losetup --show -f -P "$diskpath")"
-    sfdisk "${lodev:?}" <<EOF
-label: gpt
-
-$(for ((i = 1; i <= num_part; i++)); do echo 'name="Hello world", size=2M'; done)
-EOF
-    losetup -d "$lodev"
 
     for ((i = 0; i < num_disk; i++)); do
         diskpath="${TESTDIR:?}/namedpart$i.img"
@@ -325,19 +316,9 @@ testcase_multipath_basic_failover() {
 
     local qemu_opts=("-device virtio-scsi-pci,id=scsi")
     local partdisk="${TESTDIR:?}/multipathpartitioned.img"
-    local image lodev nback ndisk wwn
+    local image nback ndisk wwn
 
     dd if=/dev/zero of="$partdisk" bs=1M count=16
-    lodev="$(losetup --show -f -P "$partdisk")"
-    sfdisk "${lodev:?}" <<EOF
-label: gpt
-
-name="first_partition", size=5M
-uuid="deadbeef-dead-dead-beef-000000000000", name="failover_part", size=5M
-EOF
-    udevadm settle
-    mkfs.ext4 -U "deadbeef-dead-dead-beef-111111111111" -L "failover_vol" "${lodev}p2"
-    losetup -d "$lodev"
 
     # Add 16 multipath devices, each backed by 4 paths
     for ndisk in {0..15}; do
@@ -475,18 +456,6 @@ testcase_long_sysfs_path() {
     )
 
     dd if=/dev/zero of="$testdisk" bs=1M count=64
-    lodev="$(losetup --show -f -P "$testdisk")"
-    sfdisk "${lodev:?}" <<EOF
-label: gpt
-
-name="test_swap", size=32M
-uuid="deadbeef-dead-dead-beef-000000000000", name="test_part", size=5M
-EOF
-    udevadm settle
-    mkswap -U "deadbeef-dead-dead-beef-111111111111" -L "swap_vol" "${lodev}p1"
-    mkfs.ext4 -U "deadbeef-dead-dead-beef-222222222222" -L "data_vol" "${lodev}p2"
-    losetup -d "$lodev"
-
     # Create 25 additional PCI bridges, each one connected to the previous one
     # (basically a really long extension cable), and attach a virtio drive to
     # the last one. This should force udev into attempting to create a device
diff --git a/test/test-functions b/test/test-functions
index c62cf3d521..67896fb30f 100644
--- a/test/test-functions
+++ b/test/test-functions
@@ -1117,6 +1117,9 @@ install_fs_tools() {
     # we use mkfs in system-repart tests
     image_install /sbin/mkfs.ext4
     image_install /sbin/mkfs.vfat
+
+    # we use mkswap in udev-storage tests
+    image_install /sbin/mkswap
 }
 
 install_modules() {
diff --git a/test/units/testsuite-64.sh b/test/units/testsuite-64.sh
index 1123a1d33b..120b5f3671 100755
--- a/test/units/testsuite-64.sh
+++ b/test/units/testsuite-64.sh
@@ -239,16 +239,27 @@ testcase_nvme_subsystem() {
 }
 
 testcase_virtio_scsi_identically_named_partitions() {
-    local num
+    local num_part num_disk i j
+    local alphabet='abcdefghijklmnopqrstuvwxyz'
 
     if [[ -v ASAN_OPTIONS || "$(systemd-detect-virt -v)" == "qemu" ]]; then
-        num=$((4 * 4))
+        num_part=4
+        num_disk=4
     else
-        num=$((16 * 8))
+        num_part=8
+        num_disk=16
     fi
 
+    for ((i = 0; i < num_disk; i++)); do
+        sfdisk "/dev/sd${alphabet:$i:1}" <<EOF
+label: gpt
+
+$(for ((j = 1; j <= num_part; j++)); do echo 'name="Hello world", size=2M'; done)
+EOF
+    done
+
     lsblk --noheadings -a -o NAME,PARTLABEL
-    [[ "$(lsblk --noheadings -a -o NAME,PARTLABEL | grep -c "Hello world")" -eq "$num" ]]
+    [[ "$(lsblk --noheadings -a -o NAME,PARTLABEL | grep -c "Hello world")" -eq "$((num_part * num_disk))" ]]
 }
 
 testcase_multipath_basic_failover() {
@@ -270,6 +281,16 @@ blacklist_exceptions {
 blacklist {
 }
 EOF
+
+    sfdisk /dev/sda <<EOF
+label: gpt
+
+name="first_partition", size=5M
+uuid="deadbeef-dead-dead-beef-000000000000", name="failover_part", size=5M
+EOF
+    udevadm settle
+    mkfs.ext4 -U "deadbeef-dead-dead-beef-111111111111" -L "failover_vol" "/dev/sda2"
+
     modprobe -v dm_multipath
     systemctl start multipathd.service
     systemctl status multipathd.service
@@ -950,6 +971,16 @@ testcase_long_sysfs_path() {
     stat /sys/block/vda
     readlink -f /sys/block/vda/dev
 
+    dev="/dev/vda"
+    sfdisk "${dev:?}" <<EOF
+label: gpt
+
+name="test_swap", size=32M
+uuid="deadbeef-dead-dead-beef-000000000000", name="test_part", size=5M
+EOF
+    udevadm settle
+    mkswap -U "deadbeef-dead-dead-beef-111111111111" -L "swap_vol" "${dev}1"
+    mkfs.ext4 -U "deadbeef-dead-dead-beef-222222222222" -L "data_vol" "${dev}2"
     udevadm wait --settle --timeout=30 "${expected_symlinks[@]}"
 
     # Try to mount the data partition manually (using its label)