diff --git a/s390-tools-sles15sp6-01-parse-ipl-device-for-activation.patch b/s390-tools-sles15sp6-01-parse-ipl-device-for-activation.patch
new file mode 100644
index 0000000..d24d338
--- /dev/null
+++ b/s390-tools-sles15sp6-01-parse-ipl-device-for-activation.patch
@@ -0,0 +1,100 @@
+From af44e01f471a3b64c8f33c5e4be359e3c83f56f2 Mon Sep 17 00:00:00 2001
+From: Thomas Blume <Thomas.Blume@suse.com>
+Date: Thu, 28 Mar 2024 13:32:46 +0100
+Subject: [PATCH] parse ipl device for activation
+
+ported from dracut modules
+---
+ zdev/dracut/95zdev/parse-dasd.sh | 13 +++++++--
+ zdev/dracut/95zdev/parse-zfcp.sh | 50 ++++++++++++++++++++------------
+ 2 files changed, 42 insertions(+), 21 deletions(-)
+
+diff --git a/zdev/dracut/95zdev/parse-dasd.sh b/zdev/dracut/95zdev/parse-dasd.sh
+index a97801f..55a2d01 100644
+--- a/zdev/dracut/95zdev/parse-dasd.sh
++++ b/zdev/dracut/95zdev/parse-dasd.sh
+@@ -27,9 +27,16 @@ zdev_vinfo() {
+ 
+ zdev_parse_rd_dasd() {
+     local _zdev_dasd _zdev_dasd_list
+-    for _zdev_dasd in $(getargs rd.dasd -d 'rd_DASD='); do
+-        _zdev_dasd_list="${_zdev_dasd_list:+${_zdev_dasd_list},}$_zdev_dasd"
+-    done
++    # autodetect active bootdev from zipl device
++    if ! getargbool 0 'rd.dasd' \
++        && [[ -f /sys/firmware/ipl/ipl_type ]] \
++        && [[ $(< /sys/firmware/ipl/ipl_type) == "ccw" ]]; then
++        _zdev_dasd_list="$(< /sys/firmware/ipl/device)"
++    else
++        for _zdev_dasd in $(getargs rd.dasd -d 'rd_DASD='); do
++            _zdev_dasd_list="${_zdev_dasd_list:+${_zdev_dasd_list},}$_zdev_dasd"
++        done
++    fi
+     echo "$_zdev_dasd_list"
+ }
+ 
+diff --git a/zdev/dracut/95zdev/parse-zfcp.sh b/zdev/dracut/95zdev/parse-zfcp.sh
+index 715aa00..4c2f990 100644
+--- a/zdev/dracut/95zdev/parse-zfcp.sh
++++ b/zdev/dracut/95zdev/parse-zfcp.sh
+@@ -12,25 +12,39 @@
+ 
+ zdev_zfcp_base_args="--no-settle --yes --no-root-update --force"
+ 
+-for zdev_zfcp_arg in $(getargs rd.zfcp -d 'rd_ZFCP='); do
++# autodetect active bootdev from zipl device
++if ! getargbool 0 'rd.zfcp' \
++    && [[ -f /sys/firmware/ipl/ipl_type ]] \
++    && [[ $(< /sys/firmware/ipl/ipl_type) == "fcp" ]]; then
+     (
+-        IFS_SAVED="$IFS"
+-        IFS="," # did not work in front of built-in set command below
+-        # shellcheck disable=SC2086
+-        set -- $zdev_zfcp_arg
+-        IFS=":" args="$*"
+-        IFS="$IFS_SAVED"
+-        echo "rd.zfcp ${zdev_zfcp_arg} :" | zdev_vinfo
+-        if [ "$#" -eq 1 ]; then
+-            # shellcheck disable=SC2086
+-            chzdev --enable --persistent $zdev_zfcp_base_args \
+-                   zfcp-host "$args" 2>&1 | zdev_vinfo
+-        else
+-            # shellcheck disable=SC2086
+-            chzdev --enable --persistent $zdev_zfcp_base_args \
+-                   zfcp-lun "$args" 2>&1 | zdev_vinfo
+-        fi
++        read -r _wwpn < /sys/firmware/ipl/wwpn
++        read -r _lun < /sys/firmware/ipl/lun
++        read -r _ccw < /sys/firmware/ipl/device
++
++        chzdev --enable --persistent zfcp-lun "$_ccw:$_wwpn:$_lun" 2>&1 | zdev_vinfo
+     )
+-done
++else
++    for zdev_zfcp_arg in $(getargs rd.zfcp -d 'rd_ZFCP='); do
++        (
++            IFS_SAVED="$IFS"
++            IFS="," # did not work in front of built-in set command below
++            # shellcheck disable=SC2086
++            set -- $zdev_zfcp_arg
++            IFS=":" args="$*"
++            IFS="$IFS_SAVED"
++            echo "rd.zfcp ${zdev_zfcp_arg} :" | zdev_vinfo
++            if [ "$#" -eq 1 ]; then
++                # shellcheck disable=SC2086
++                chzdev --enable --persistent $zdev_zfcp_base_args \
++                       zfcp-host "$args" 2>&1 | zdev_vinfo
++            else
++                # shellcheck disable=SC2086
++                chzdev --enable --persistent $zdev_zfcp_base_args \
++                       zfcp-lun "$args" 2>&1 | zdev_vinfo
++            fi
++        )
++    done
++fi
++
+ unset zdev_zfcp_arg
+ unset zdev_zfcp_base_args
+-- 
+2.44.0
+
diff --git a/s390-tools.changes b/s390-tools.changes
index 653bb71..cf8cfa2 100644
--- a/s390-tools.changes
+++ b/s390-tools.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Apr  2 05:32:45 UTC 2024 - Nikolay Gueorguiev <nikolay.gueorguiev@suse.com>
+
+- Apllied a patch(bsc#1220949,bsc#1221873)
+  * s390-tools-sles15sp6-01-parse-ipl-device-for-activation.patch
+
 -------------------------------------------------------------------
 Fri Mar 15 16:45:58 UTC 2024 - Nikolay Gueorguiev <nikolay.gueorguiev@suse.com>
 
diff --git a/s390-tools.spec b/s390-tools.spec
index 4420c69..b8d2b25 100644
--- a/s390-tools.spec
+++ b/s390-tools.spec
@@ -154,6 +154,7 @@ Patch911:       s390-tools-sles15sp5-remove-no-pie-link-arguments.patch
 Patch912:       s390-tools-ALP-zdev-live.patch
 Patch913:       s390-tools-sles15sp6-kdump-initrd-59-zfcp-compat-rules.patch
 Patch914:       s390-tools-sles15sp6-genprotimg-makefile.patch
+Patch915:       s390-tools-sles15sp6-01-parse-ipl-device-for-activation.patch
 ###
 
 BuildRequires:  curl-devel