diff --git a/classes/wic-targz-img.bbclass b/classes/wic-targz-img.bbclass
deleted file mode 100644
index 1327840..0000000
--- a/classes/wic-targz-img.bbclass
+++ /dev/null
@@ -1,15 +0,0 @@
-#
-# CIP Core, generic profile
-#
-# Copyright (c) Siemens AG, 2019
-#
-# Authors:
-#  Quirin Gylstorff <quirin.gylstorff@siemens.com>
-#
-# SPDX-License-Identifier: MIT
-#
-
-inherit wic-img
-inherit targz-img
-
-addtask do_targz_image after do_wic_image
diff --git a/conf/machine/bbb.conf b/conf/machine/bbb.conf
index 81e624e..b592f4d 100644
--- a/conf/machine/bbb.conf
+++ b/conf/machine/bbb.conf
@@ -8,7 +8,7 @@
 
 DISTRO_ARCH = "armhf"
 
-IMAGE_FSTYPES ?= "wic-img"
+IMAGE_FSTYPES ?= "wic"
 IMAGER_INSTALL += "u-boot-omap"
 
 IMAGE_INSTALL += "u-boot-script"
diff --git a/conf/machine/hihope-rzg2m.conf b/conf/machine/hihope-rzg2m.conf
index bc80ddd..0b3acf4 100644
--- a/conf/machine/hihope-rzg2m.conf
+++ b/conf/machine/hihope-rzg2m.conf
@@ -11,7 +11,7 @@
 
 DISTRO_ARCH = "arm64"
 
-IMAGE_FSTYPES ?= "wic-img"
+IMAGE_FSTYPES ?= "wic"
 
 KERNEL_DEFCONFIG = "cip-kernel-config/${KERNEL_DEFCONFIG_VERSION}/arm64/renesas_defconfig"
 USE_CIP_KERNEL_CONFIG = "1"
diff --git a/conf/machine/iwg20m.conf b/conf/machine/iwg20m.conf
index a26f7fe..d997a02 100644
--- a/conf/machine/iwg20m.conf
+++ b/conf/machine/iwg20m.conf
@@ -8,7 +8,7 @@
 DISTRO_ARCH = "armhf"
 
 # see wic/iwg20m.wks
-IMAGE_FSTYPES ?= "wic-img"
+IMAGE_FSTYPES ?= "wic"
 
 # sets serial login getty
 MACHINE_SERIAL = "ttySC0"
diff --git a/conf/machine/qemu-amd64.conf b/conf/machine/qemu-amd64.conf
index a60f818..da7e59c 100644
--- a/conf/machine/qemu-amd64.conf
+++ b/conf/machine/qemu-amd64.conf
@@ -8,6 +8,6 @@
 
 DISTRO_ARCH = "amd64"
 
-IMAGE_FSTYPES ?= "ext4-img"
+IMAGE_FSTYPES ?= "ext4"
 USE_CIP_KERNEL_CONFIG = "1"
 KERNEL_DEFCONFIG = "cip-kernel-config/${KERNEL_DEFCONFIG_VERSION}/x86/cip_qemu_defconfig"
diff --git a/conf/machine/qemu-arm.conf b/conf/machine/qemu-arm.conf
index aca6d7d..1937c4c 100644
--- a/conf/machine/qemu-arm.conf
+++ b/conf/machine/qemu-arm.conf
@@ -9,6 +9,6 @@
 
 DISTRO_ARCH = "armhf"
 
-IMAGE_FSTYPES ?= "ext4-img"
+IMAGE_FSTYPES ?= "ext4"
 USE_CIP_KERNEL_CONFIG = "1"
 KERNEL_DEFCONFIG ?= "cip-kernel-config/${KERNEL_DEFCONFIG_VERSION}/arm/qemu_arm_defconfig"
diff --git a/conf/machine/qemu-arm64.conf b/conf/machine/qemu-arm64.conf
index 4e12cdb..b5c1e1c 100644
--- a/conf/machine/qemu-arm64.conf
+++ b/conf/machine/qemu-arm64.conf
@@ -8,7 +8,7 @@
 
 DISTRO_ARCH = "arm64"
 
-IMAGE_FSTYPES ?= "ext4-img"
+IMAGE_FSTYPES ?= "ext4"
 USE_CIP_KERNEL_CONFIG = "1"
 KERNEL_DEFCONFIG ?= "cip-kernel-config/${KERNEL_DEFCONFIG_VERSION}/arm64/qemu_arm64_defconfig"
 
diff --git a/conf/machine/simatic-ipc227e.conf b/conf/machine/simatic-ipc227e.conf
index 50d1f8a..a624fcd 100644
--- a/conf/machine/simatic-ipc227e.conf
+++ b/conf/machine/simatic-ipc227e.conf
@@ -8,7 +8,7 @@
 
 DISTRO_ARCH = "amd64"
 
-IMAGE_FSTYPES ?= "wic-img"
+IMAGE_FSTYPES ?= "wic"
 IMAGER_INSTALL += "${GRUB_BOOTLOADER_INSTALL}"
 USE_CIP_KERNEL_CONFIG = "1"
 KERNEL_DEFCONFIG = "cip-kernel-config/${KERNEL_DEFCONFIG_VERSION}/x86/siemens_ipc227e_defconfig"
diff --git a/kas-cip.yml b/kas-cip.yml
index 48de066..c3477ed 100644
--- a/kas-cip.yml
+++ b/kas-cip.yml
@@ -22,13 +22,9 @@ repos:
 
   isar:
     url: https://github.com/ilbers/isar.git
-    refspec: cf3f18a649ff42726677a58b224b9bb58ea4ba46
+    refspec: 1000df8e98b9a5849a7897698039687fd0cdd7d3
     layers:
       meta:
-    patches:
-      fix-pseudo:
-        repo: cip-core
-        path: patches/isar/0001-Fix-permissions-when-splitting-rootfs-folders-across.patch
 
 bblayers_conf_header:
   standard: |
diff --git a/kas/opt/efibootguard.yml b/kas/opt/efibootguard.yml
index d85aed7..4282932 100644
--- a/kas/opt/efibootguard.yml
+++ b/kas/opt/efibootguard.yml
@@ -24,7 +24,7 @@ local_conf_header:
     WIC_IMAGER_INSTALL_append = " efibootguard"
     WDOG_TIMEOUT ?= "60"
     WICVARS += "WDOG_TIMEOUT KERNEL_IMAGE INITRD_IMAGE DTB_FILES"
-    IMAGE_FSTYPES ?= "wic-img"
+    IMAGE_FSTYPES ?= "wic"
     WKS_FILE ?= "${MACHINE}-efibootguard.wks.in"
 
   firmware-binaries: |
diff --git a/kas/opt/swupdate.yml b/kas/opt/swupdate.yml
index 31cd0d1..72429c6 100644
--- a/kas/opt/swupdate.yml
+++ b/kas/opt/swupdate.yml
@@ -23,5 +23,5 @@ local_conf_header:
     CIP_IMAGE_OPTIONS_append = " swupdate.inc"
 
   wic-swu: |
-    IMAGE_FSTYPES = "wic-swu-img"
+    IMAGE_FSTYPES = "wic"
     WKS_FILE ?= "${MACHINE}-${SWUPDATE_BOOTLOADER}.wks.in"
diff --git a/kas/opt/targz-img.yml b/kas/opt/targz-img.yml
index d555a8a..afe2e07 100644
--- a/kas/opt/targz-img.yml
+++ b/kas/opt/targz-img.yml
@@ -14,4 +14,4 @@ header:
 
 local_conf_header:
   image-type: |
-    IMAGE_FSTYPES = "targz-img"
+    IMAGE_FSTYPES = "tar.gz"
diff --git a/kas/opt/wic-targz-img.yml b/kas/opt/wic-targz-img.yml
index 2e83760..aaee76d 100644
--- a/kas/opt/wic-targz-img.yml
+++ b/kas/opt/wic-targz-img.yml
@@ -17,4 +17,4 @@ header:
 
 local_conf_header:
   image-type: |
-    IMAGE_FSTYPES = "wic-targz-img"
+    IMAGE_FSTYPES = "wic tar.gz"
diff --git a/patches/isar/0001-Fix-permissions-when-splitting-rootfs-folders-across.patch b/patches/isar/0001-Fix-permissions-when-splitting-rootfs-folders-across.patch
deleted file mode 100644
index 34704f0..0000000
--- a/patches/isar/0001-Fix-permissions-when-splitting-rootfs-folders-across.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-From 34b37fccd5e454d29d6d4d002d48a9619782b1bb Mon Sep 17 00:00:00 2001
-From: Felix Moessbauer <felix.moessbauer@siemens.com>
-Date: Wed, 3 Nov 2021 13:53:00 +0100
-Subject: [PATCH] Fix permissions when splitting rootfs folders across
- partitions.
-
-This patches ensures that the file database containing the file and
-folder usernames and permissions is always located relative to the
-source and not to the appended rootfs-dir.
-
-Prior to this patch, the database was not found when using
--rootfs-dir in the WIC script, leading to erronous file
-permissions and ownership.
-
-Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
----
- scripts/lib/wic/plugins/source/rootfs.py | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/scripts/lib/wic/plugins/source/rootfs.py b/scripts/lib/wic/plugins/source/rootfs.py
-index 96d940a9..5ab771e5 100644
---- a/scripts/lib/wic/plugins/source/rootfs.py
-+++ b/scripts/lib/wic/plugins/source/rootfs.py
-@@ -95,7 +95,7 @@ class RootfsPlugin(SourcePlugin):
- 
-         part.rootfs_dir = cls.__get_rootfs_dir(rootfs_dir)
-         part.has_fstab = os.path.exists(os.path.join(part.rootfs_dir, "etc/fstab"))
--        pseudo_dir = os.path.join(part.rootfs_dir, "../pseudo")
-+        pseudo_dir = os.path.join(krootfs_dir['ROOTFS_DIR'], "../pseudo")
-         if not os.path.lexists(pseudo_dir):
-             logger.warn("%s folder does not exist. "
-                         "Usernames and permissions will be invalid " % pseudo_dir)
--- 
-2.30.2
-
