diff -Nru ceph-iscsi-3.4/debian/changelog ceph-iscsi-3.4/debian/changelog
--- ceph-iscsi-3.4/debian/changelog	2020-02-26 12:23:17.000000000 +0000
+++ ceph-iscsi-3.4/debian/changelog	2022-02-22 15:12:55.000000000 +0000
@@ -1,3 +1,10 @@
+ceph-iscsi (3.4-0ubuntu3) focal; urgency=medium
+
+  * d/p/ceph-rm-blacklist-decode.patch: Remove attempt to look for
+    string in a byte type (LP: #1883112).
+
+ -- Liam Young <liam.young@canonical.com>  Tue, 22 Feb 2022 15:12:55 +0000
+
 ceph-iscsi (3.4-0ubuntu2) focal; urgency=medium
 
   * d/p/ubuntu-support.patch: Ensure Ubuntu >= 18.04 is in the list of
diff -Nru ceph-iscsi-3.4/debian/patches/ceph-rm-blacklist-decode.patch ceph-iscsi-3.4/debian/patches/ceph-rm-blacklist-decode.patch
--- ceph-iscsi-3.4/debian/patches/ceph-rm-blacklist-decode.patch	1970-01-01 01:00:00.000000000 +0100
+++ ceph-iscsi-3.4/debian/patches/ceph-rm-blacklist-decode.patch	2022-02-22 15:12:45.000000000 +0000
@@ -0,0 +1,41 @@
+--- a/ceph_iscsi_config/gateway.py
++++ b/ceph_iscsi_config/gateway.py
+@@ -37,24 +37,26 @@
+                          "{}".format(blacklisted_ip))
+ 
+         conf = settings.config
+-        result = subprocess.check_output("ceph -n {client_name} --conf {cephconf} "
+-                                         "osd blacklist rm {blacklisted_ip}".
+-                                         format(blacklisted_ip=blacklisted_ip,
+-                                                client_name=conf.cluster_client_name,
+-                                                cephconf=conf.cephconf),
+-                                         stderr=subprocess.STDOUT, shell=True)
+-        if ("un-blacklisting" in result) or ("isn't blacklisted" in result):
+-            self.logger.info("Successfully removed blacklist entry")
+-            return True
+-        else:
+-            self.logger.critical("blacklist removal failed. Run"
++        try:
++            subprocess.check_output("ceph -n {client_name} --conf {cephconf} "
++                                    "osd blacklist rm {blacklisted_ip}".
++                                    format(blacklisted_ip=blacklisted_ip,
++                                           client_name=conf.cluster_client_name,
++                                           cephconf=conf.cephconf),
++                                    stderr=subprocess.STDOUT, shell=True)
++        except subprocess.CalledProcessError as err:
++            self.logger.critical("blacklist removal failed: {}. Run"
+                                  " 'ceph -n {client_name} --conf {cephconf} "
+                                  "osd blacklist rm {blacklisted_ip}'".
+-                                 format(blacklisted_ip=blacklisted_ip,
++                                 format(err.output.decode('utf-8').strip(),
++                                        blacklisted_ip=blacklisted_ip,
+                                         client_name=conf.cluster_client_name,
+                                         cephconf=conf.cephconf))
+             return False
+ 
++        self.logger.info("Successfully removed blacklist entry")
++        return True
++
+     def osd_blacklist_cleanup(self):
+         """
+         Process the osd's to see if there are any blacklist entries for this
diff -Nru ceph-iscsi-3.4/debian/patches/series ceph-iscsi-3.4/debian/patches/series
--- ceph-iscsi-3.4/debian/patches/series	2020-02-26 12:16:11.000000000 +0000
+++ ceph-iscsi-3.4/debian/patches/series	2022-02-22 14:54:15.000000000 +0000
@@ -1,2 +1,3 @@
 0001-Replace-etc-sysconfig-ceph-by-etc-default-ceph-in-se.patch
 ubuntu-support.patch
+ceph-rm-blacklist-decode.patch