I executed the command "sudo apt update".
ubu@ubuntu16:~$ sudo apt update [sudo] password for ubu: Hit:1 http://jp.archive.ubuntu.com/ubuntu xenial InRelease Get:2 http://jp.archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB] Get:3 http://jp.archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB] Get:4 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB] Get:5 http://jp.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages [445 kB] Get:6 http://jp.archive.ubuntu.com/ubuntu xenial-updates/main i386 Packages [438 kB] Fetched 1,190 kB in 1s (897 kB/s) E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. ubu@ubuntu16:~$
and then I executed the command "sudo dpkg --configure -a".
ubu@ubuntu16:~$ sudo dpkg --configure -a Setting up libapt-inst2.0:amd64 (1.2.15ubuntu0.2) ... Processing triggers for ufw (0.35-0ubuntu2) ... Setting up libisc160:amd64 (1:9.10.3.dfsg.P4-8ubuntu1.2) ... Setting up libssl1.0.0:amd64 (1.0.2g-1ubuntu4.5) ... Setting up libisc-export160 (1:9.10.3.dfsg.P4-8ubuntu1.2) ... Processing triggers for mime-support (3.59ubuntu1) ... Processing triggers for ureadahead (0.100.0-19) ... Setting up apt-utils (1.2.15ubuntu0.2) ... Setting up tzdata (2016j-0ubuntu0.16.04) ... Current default time zone: 'Asia/Tokyo' Local time is now: Mon Jan 9 17:01:47 JST 2017. Universal Time is now: Mon Jan 9 08:01:47 UTC 2017. Run 'dpkg-reconfigure tzdata' if you wish to change it. Setting up libdns-export162 (1:9.10.3.dfsg.P4-8ubuntu1.2) ... Setting up python3-problem-report (2.20.1-0ubuntu2.4) ... Setting up linux-image-4.4.0-57-generic (4.4.0-57.78) ... Running depmod. update-initramfs: deferring update (hook will be called later) Examining /etc/kernel/postinst.d. run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.0-57-generic /boot/vmlinuz-4.4.0-57-generic run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.0-57-generic /boot/vmlinuz-4.4.0-57-generic update-initramfs: Generating /boot/initrd.img-4.4.0-57-generic W: mdadm: /etc/mdadm/mdadm.conf defines no arrays. run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 4.4.0-57-generic /boot/vmlinuz-4.4.0-57-generic run-parts: executing /etc/kernel/postinst.d/update-notifier 4.4.0-57-generic /boot/vmlinuz-4.4.0-57-generic run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.4.0-57-generic /boot/vmlinuz-4.4.0-57-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.4.0-57-generic Found initrd image: /boot/initrd.img-4.4.0-57-generic Found linux image: /boot/vmlinuz-4.4.0-31-generic Found initrd image: /boot/initrd.img-4.4.0-31-generic done Setting up libisccc140:amd64 (1:9.10.3.dfsg.P4-8ubuntu1.2) ... Processing triggers for libc-bin (2.23-0ubuntu3) ... Setting up udev (229-4ubuntu10) ... addgroup: The group `input' already exists as a system group. Exiting. update-initramfs: deferring update (trigger activated) Processing triggers for systemd (229-4ubuntu10) ... Setting up liblwres141:amd64 (1:9.10.3.dfsg.P4-8ubuntu1.2) ... Setting up openssl (1.0.2g-1ubuntu4.5) ... Setting up vim-common (2:7.4.1689-3ubuntu1.2) ... Processing triggers for man-db (2.7.5-1) ... Processing triggers for shared-mime-info (1.5-2ubuntu0.1) ... Setting up vim-runtime (2:7.4.1689-3ubuntu1.2) ... Setting up openssh-client (1:7.2p2-4ubuntu2.1) ... Setting up linux-firmware (1.157.4) ... Setting up libidn11:amd64 (1.32-3ubuntu1.1) ... Setting up libdbus-1-3:amd64 (1.10.6-1ubuntu3.1) ... Setting up libpython3.5-minimal:amd64 (3.5.2-2ubuntu0~16.04.1) ... Setting up vim-tiny (2:7.4.1689-3ubuntu1.2) ... Setting up libdns162:amd64 (1:9.10.3.dfsg.P4-8ubuntu1.2) ... Setting up libcurl3-gnutls:amd64 (7.47.0-1ubuntu2.2) ... Setting up libpython3.5-stdlib:amd64 (3.5.2-2ubuntu0~16.04.1) ... Setting up libisccfg140:amd64 (1:9.10.3.dfsg.P4-8ubuntu1.2) ... Setting up python3-apport (2.20.1-0ubuntu2.4) ... Setting up python3.5-minimal (3.5.2-2ubuntu0~16.04.1) ... Setting up openssh-sftp-server (1:7.2p2-4ubuntu2.1) ... Setting up apport (2.20.1-0ubuntu2.4) ... Setting up libbind9-140:amd64 (1:9.10.3.dfsg.P4-8ubuntu1.2) ... Setting up dbus (1.10.6-1ubuntu3.1) ... A reboot is required to replace the running dbus-daemon. Please reboot the system when convenient. Setting up bind9-host (1:9.10.3.dfsg.P4-8ubuntu1.2) ... Setting up python3.5 (3.5.2-2ubuntu0~16.04.1) ... Setting up apt-transport-https (1.2.15ubuntu0.2) ... Setting up libpam-systemd:amd64 (229-4ubuntu10) ... Setting up curl (7.47.0-1ubuntu2.2) ... Setting up libpython3.5:amd64 (3.5.2-2ubuntu0~16.04.1) ... Setting up dnsutils (1:9.10.3.dfsg.P4-8ubuntu1.2) ... Setting up openssh-server (1:7.2p2-4ubuntu2.1) ... Installing new version of config file /etc/network/if-up.d/openssh-server ... Setting up vim (2:7.4.1689-3ubuntu1.2) ... Setting up liblxc1 (2.0.5-0ubuntu1~ubuntu16.04.3) ... Setting up lxc-common (2.0.5-0ubuntu1~ubuntu16.04.3) ... Processing triggers for initramfs-tools (0.122ubuntu8.1) ... update-initramfs: Generating /boot/initrd.img-4.4.0-57-generic W: mdadm: /etc/mdadm/mdadm.conf defines no arrays. Processing triggers for libc-bin (2.23-0ubuntu3) ... ubu@ubuntu16:~$
and I executed again.
ubu@ubuntu16:~$ sudo apt update Hit:1 http://jp.archive.ubuntu.com/ubuntu xenial InRelease Hit:2 http://jp.archive.ubuntu.com/ubuntu xenial-updates InRelease Hit:3 http://jp.archive.ubuntu.com/ubuntu xenial-backports InRelease Get:4 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB] Fetched 102 kB in 1s (71.2 kB/s) Reading package lists... Done Building dependency tree Reading state information... Done 73 packages can be upgraded. Run 'apt list --upgradable' to see them. ubu@ubuntu16:~$