4. 레파지토리를 추가한 후에는 반드시 업데이트해서 우분투 시스템에 반영해야 합니다. 다음 명령어를 이용해 시스템을 업데이트합니다.
root@controller:~# apt-get update && apt-get dist-upgrade Hit:1 http://us.archive.ubuntu.com/ubuntu xenial InRelease Hit:2 http://security.ubuntu.com/ubuntu xenial-security InRelease Get:3 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease [94.5 kB] … Fetched 613 kB in 7s (85.4 kB/s) Reading package lists… Done Reading package lists… Done Building dependency tree Reading state information… Done Calculating upgrade… Done The following packages will be upgraded: accountsservice apport bash-completion bind9-host command-not-found command- not-found-data dh-python dmidecode dnsutils dpkg language-selector-common libaccountsservice0 libbind9-140 libdns-export162 libdns162 libisc-export160 libisc160 libisccc140 libisccfg140 libldap-2.4-2 liblwres141 liblxc1 libpam-systemd libplymouth4 libsystemd0 libudev1 lxc-common lxcfs lxd lxd-client openssh-client openssh-server openssh-sftp- server plymouth plymouth-theme-ubuntu-text python3-apport python3-commandnotfound python3- distupgrade python3-problem-report python3-urllib3 snapd sudo systemd systemd-sysv ubuntu-release-upgrader-core udev 46 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 22.7 MB of archives. After this operation, 15.4 kB disk space will be freed. Do you want to continue? [Y/n] y Get:1 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 dpkg amd64 1.18.4ubuntu1.1 [2,083 kB] Get:2 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 libsystemd0 amd64 229-4ubuntu6 [208 kB] … Processing triggers for initramfs-tools (0.122ubuntu8) … update-initramfs: Generating /boot/initrd.img-4.4.0-22-generic W: mdadm: /etc/mdadm/mdadm.conf defines no arrays. Processing triggers for libc-bin (2.23-0ubuntu3) …