diff --git a/xCAT-test/autotest/testcase/migration/ubuntu_migration1_p8le b/xCAT-test/autotest/testcase/migration/ubuntu_migration1_p8le
index cf77bd24f..e9d8c0876 100644
--- a/xCAT-test/autotest/testcase/migration/ubuntu_migration1_p8le
+++ b/xCAT-test/autotest/testcase/migration/ubuntu_migration1_p8le
@@ -33,13 +33,9 @@ check:rc==0
 cmd:xdsh $$CN "apt-get -y install software-properties-common"
 check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://ports.ubuntu.com/ubuntu-ports $lsb_r main"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://ports.ubuntu.com/ubuntu-ports ${lsb_r}-updates main"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://ports.ubuntu.com/ubuntu-ports ${lsb_r} universe"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://ports.ubuntu.com/ubuntu-ports ${lsb_r}-updates universe"'
-check:rc==0
 cmd:xdsh $$CN "sed -i '/install/d' /etc/apt/sources.list"
 check:rc==0
 cmd:xdsh $$CN "sed -i '/security.ubuntu.com/d' /etc/apt/sources.list"
diff --git a/xCAT-test/autotest/testcase/migration/ubuntu_migration1_vm b/xCAT-test/autotest/testcase/migration/ubuntu_migration1_vm
index d506123ad..a060e181c 100644
--- a/xCAT-test/autotest/testcase/migration/ubuntu_migration1_vm
+++ b/xCAT-test/autotest/testcase/migration/ubuntu_migration1_vm
@@ -32,13 +32,9 @@ check:rc==0
 cmd:xdsh $$CN "apt-get -y install software-properties-common"
 check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://archive.ubuntu.com/ubuntu $lsb_r main"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://archive.ubuntu.com/ubuntu ${lsb_r}-updates main"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://archive.ubuntu.com/ubuntu ${lsb_r} universe"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://archive.ubuntu.com/ubuntu ${lsb_r}-updates universe"'
-check:rc==0
 cmd:xdsh $$CN "sed -i '/install/d' /etc/apt/sources.list"
 check:rc==0
 cmd:xdsh $$CN "sed -i '/security.ubuntu.com/d' /etc/apt/sources.list"
diff --git a/xCAT-test/autotest/testcase/migration/ubuntu_migration2_p8le b/xCAT-test/autotest/testcase/migration/ubuntu_migration2_p8le
index 1d3216e8c..18e7d7db5 100644
--- a/xCAT-test/autotest/testcase/migration/ubuntu_migration2_p8le
+++ b/xCAT-test/autotest/testcase/migration/ubuntu_migration2_p8le
@@ -33,13 +33,9 @@ check:rc==0
 cmd:xdsh $$CN "apt-get -y install software-properties-common"
 check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://ports.ubuntu.com/ubuntu-ports $lsb_r main"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://ports.ubuntu.com/ubuntu-ports ${lsb_r}-updates main"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://ports.ubuntu.com/ubuntu-ports ${lsb_r} universe"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://ports.ubuntu.com/ubuntu-ports ${lsb_r}-updates universe"'
-check:rc==0
 cmd:xdsh $$CN "sed -i '/install/d' /etc/apt/sources.list"
 check:rc==0
 cmd:xdsh $$CN "sed -i '/security.ubuntu.com/d' /etc/apt/sources.list"
diff --git a/xCAT-test/autotest/testcase/migration/ubuntu_migration2_vm b/xCAT-test/autotest/testcase/migration/ubuntu_migration2_vm
index a3ad8594b..612a0536c 100644
--- a/xCAT-test/autotest/testcase/migration/ubuntu_migration2_vm
+++ b/xCAT-test/autotest/testcase/migration/ubuntu_migration2_vm
@@ -32,13 +32,9 @@ check:rc==0
 cmd:xdsh $$CN "apt-get -y install software-properties-common"
 check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://archive.ubuntu.com/ubuntu $lsb_r main"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://archive.ubuntu.com/ubuntu ${lsb_r}-updates main"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://archive.ubuntu.com/ubuntu ${lsb_r} universe"'
-check:rc==0
 cmd:xdsh $$CN 'lsb_r=`lsb_release -sc`;add-apt-repository "deb http://archive.ubuntu.com/ubuntu ${lsb_r}-updates universe"'
-check:rc==0
 cmd:xdsh $$CN "sed -i '/install/d' /etc/apt/sources.list"
 check:rc==0
 cmd:xdsh $$CN "sed -i '/security.ubuntu.com/d' /etc/apt/sources.list"