CAS升级，网络中断SSH重连发现升级不成功

Configuration file `/etc/init.d/o2cb'
 ==> Modified (by you or by a script) since installation.
 ==> Package distributor has shipped an updated version.
 ==> Using new file as you requested.
Installing new version of config file /etc/init.d/o2cb ...
Installing new version of config file /etc/init.d/ocfs2 ...
debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (This frontend requires a controlling tty.)
debconf: falling back to frontend: Teletype
Processing triggers for man-db ...
debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (This frontend requires a controlling tty.)
debconf: falling back to frontend: Teletype
Processing triggers for ureadahead ...
O2CB config file has no fence method item, configure it as reset!
./upgrade.sh: line 42: ocfs2_set_fence_method.sh: command not found
Upgrading OCFS2 kernel modules...
Selecting previously unselected package ocfs2-modules.
(Reading database ... 70515 files and directories currently installed.)
Unpacking ocfs2-modules (from .../ocfs2_kernel_modules.deb) ...
Setting up ocfs2-modules (1.0) ...
End upgrading OCFS2...
Begin to upgrade openvswitch module...
Linux build   version : 4.1.0-generic  #1 SMP Wed Nov 9 02:04:23 CST 2016
Linux running version : 4.1.0-generic  #1 SMP Wed Nov 9 02:04:23 CST 2016
Fri Jun  1 10:44:46 CST 2018 pre dpkg -i openvswitch_*.deb
(Reading database ... 70525 files and directories currently installed.)
Preparing to replace openvswitch 2.5.0-1ubuntu2 (using ./openvswitch_2.7.4_amd64.deb) ...
Unpacking replacement openvswitch ...
dpkg: warning: unable to delete old directory '/var/run/openvswitch': Directory not empty
Setting up openvswitch (2.7.4) ...
 * Saving flows
 * Killing ovsdb-server (3869)
 * Backing up database to /etc/openvswitch/conf.db.backup7.12.1-215575421
 * Compacting database
 * Converting database schema
 * Starting ovsdb-server
 * Configuring Open vSwitch system IDs
 * Killing ovs-vswitchd (3880)
 * Starting ovs-vswitchd
 * Restoring saved flows
 * Enabling remote OVSDB managers
Processing triggers for man-db ...
debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (This frontend requires a controlling tty.)
debconf: falling back to frontend: Teletype
Processing triggers for ureadahead ...
Fri Jun  1 10:44:51 CST 2018 post dpkg -i openvswitch_*.deb
 Removing any system startup links for /etc/init.d/openvswitch-switch-restart ...
End to upgrade openvswitch module...
Begin to upgrade usbredir and usbdem modules...
Package: usbredir
Status: install ok installed
Priority: extra
Installed-Size: 552
Maintainer: root@cvknode183
Architecture: amd64
Version: 0.7-1
Provides: usbredir
Description: usbredir
(Reading database ... 70529 files and directories currently installed.)
Removing usbredir ...
Processing triggers for man-db ...
debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (This frontend requires a controlling tty.)
debconf: falling back to frontend: Teletype
Selecting previously unselected package libusbredirparser1.
(Reading database ... 70504 files and directories currently installed.)
Unpacking libusbredirparser1 (from .../libusbredirparser1_0.7.1-1_amd64.deb) ...
Setting up libusbredirparser1 (0.7.1-1) ...
Processing triggers for libc-bin ...
Selecting previously unselected package libusbredirhost1.
(Reading database ... 70509 files and directories currently installed.)
Unpacking libusbredirhost1 (from .../libusbredirhost1_0.7.1-1_amd64.deb) ...
Setting up libusbredirhost1 (0.7.1-1) ...
Processing triggers for libc-bin ...
Selecting previously unselected package libusbredirparser-dev.
(Reading database ... 70516 files and directories currently installed.)
Unpacking libusbredirparser-dev (from .../libusbredirparser-dev_0.7.1-1_amd64.deb) ...
Setting up libusbredirparser-dev (0.7.1-1) ...
Selecting previously unselected package libusbredirhost-dev.
(Reading database ... 70524 files and directories currently installed.)
Unpacking libusbredirhost-dev (from .../libusbredirhost-dev_0.7.1-1_amd64.deb) ...
Setting up libusbredirhost-dev (0.7.1-1) ...
Selecting previously unselected package usbredirserver.
(Reading database ... 70532 files and directories currently installed.)
Unpacking usbredirserver (from .../usbredirserver_0.7.1-1_amd64.deb) ...
Setting up usbredirserver (0.7.1-1) ...
Processing triggers for man-db ...
debconf: unable to initialize frontend: Dialog
debconf: (TERM is not set, so the dialog frontend is not usable.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (This frontend requires a controlling tty.)
debconf: falling back to frontend: Teletype
Selecting previously unselected package usbdem.
(Reading database ... 70539 files and directories currently installed.)
Unpacking usbdem (from .../usbdem_0.1.1-1_amd64.deb) ...
Setting up usbdem (0.1.1-1) ...
 * Starting Usb Device Manager Daemon  usbdemd
   ...done.
Processing triggers for ureadahead ...
End to upgrade usbredir and usbdem module...
Begin to upgrade util module...
virsh list --all
virsh list --all
/etc/corosync/corosync.conf
/etc/corosync/corosync.conf
/etc/corosync/corosync.conf.habackup
 Removing any system startup links for /etc/init.d/sriov-restore ...
   /etc/rc0.d/K29sriov-restore
   /etc/rc1.d/K29sriov-restore
   /etc/rc2.d/S29sriov-restore
   /etc/rc3.d/S29sriov-restore
   /etc/rc4.d/S29sriov-restore
   /etc/rc5.d/S29sriov-restore
   /etc/rc6.d/K29sriov-restore
 Adding system startup for /etc/init.d/restore-sriov ...
   /etc/rc0.d/K29restore-sriov -> ../init.d/restore-sriov
   /etc/rc1.d/K29restore-sriov -> ../init.d/restore-sriov
   /etc/rc6.d/K29restore-sriov -> ../init.d/restore-sriov
   /etc/rc2.d/S29restore-sriov -> ../init.d/restore-sriov
   /etc/rc3.d/S29restore-sriov -> ../init.d/restore-sriov
   /etc/rc4.d/S29restore-sriov -> ../init.d/restore-sriov
   /etc/rc5.d/S29restore-sriov -> ../init.d/restore-sriov
update-rc.d: warning: restore-pci-driver start runlevel arguments (2) do not match LSB Default-Start values (S)
 Adding system startup for /etc/init.d/restore-pci-driver ...
   /etc/rc2.d/S15restore-pci-driver -> ../init.d/restore-pci-driver
 * Stopping NTP server ntpd
   ...done.

升级到最后一台的时候，到刚关NTP服务就网络中断了，重新SSH连接发现版本没升级上去，求解决方法

5台主机 CAS+onestor 融合部署