[ubuntu] 16.04 systemctl 없을 경우

16.04 에 systemctl 명령어가 없다면 systemd를 설치한다.

$ sudo apt install systemd
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  libcryptsetup4 libsystemd-journal0
Suggested packages:
  systemd-ui
The following NEW packages will be installed:
  libcryptsetup4 libsystemd-journal0 systemd
0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
Need to get 1,556 kB of archives.
After this operation, 9,452 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://kr.archive.ubuntu.com/ubuntu/ trusty-updates/main libsystemd-journal0 amd64 204-5ubuntu20.24 [51.0 kB]
Get:2 http://kr.archive.ubuntu.com/ubuntu/ trusty/main libcryptsetup4 amd64 2:1.6.1-1ubuntu1 [77.0 kB]
Get:3 http://kr.archive.ubuntu.com/ubuntu/ trusty-updates/main systemd amd64 204-5ubuntu20.24 [1,427 kB]
Fetched 1,556 kB in 2s (762 kB/s)
Selecting previously unselected package libsystemd-journal0:amd64.
(Reading database ... 96241 files and directories currently installed.)
Preparing to unpack .../libsystemd-journal0_204-5ubuntu20.24_amd64.deb ...
Unpacking libsystemd-journal0:amd64 (204-5ubuntu20.24) ...
Selecting previously unselected package libcryptsetup4.
Preparing to unpack .../libcryptsetup4_2%3a1.6.1-1ubuntu1_amd64.deb ...
Unpacking libcryptsetup4 (2:1.6.1-1ubuntu1) ...
Selecting previously unselected package systemd.
Preparing to unpack .../systemd_204-5ubuntu20.24_amd64.deb ...
Unpacking systemd (204-5ubuntu20.24) ...
Processing triggers for ureadahead (0.100.0-16) ...
ureadahead will be reprofiled on next reboot
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Setting up libsystemd-journal0:amd64 (204-5ubuntu20.24) ...
Setting up libcryptsetup4 (2:1.6.1-1ubuntu1) ...
Setting up systemd (204-5ubuntu20.24) ...
Initializing machine ID from D-Bus machine ID.
systemd start/running, process 5375
Processing triggers for libc-bin (2.19-0ubuntu6.13) ...
Processing triggers for ureadahead (0.100.0-16) ...