나의경우 openssh-client 설치 중 꺼졌는데

그 후로 설치때마다 계속 멈추는 에러가 생겼다.

어디서 멈추냐면

pi@raspberrypi:~ $ sudo apt-get purge openssh-client

E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. 

pi@raspberrypi:~ $ sudo dpkg --configure -a

위와 같이 에러가 나타남

해결 방법은 아래와 같다

중간에 lock 에러 해결방법 

The following packages will be upgraded:

  oxygen-icon-theme

1 upgraded, 0 newly installed, 7 to remove and 29 not upgraded.

1 not fully installed or removed.

E: Could not get lock /var/cache/apt/archives/lock - open (11: Resource temporarily unavailable)

sudo rm /var/lib/apt/lists/lock

sudo rm /var/cache/apt/archives/lock 

sudo rm /var/lib/dpkg/lock

sudo dpkg --remove --force-remove-reinstreq  패키지명

그후 sudo apt-get purge openssh-client

 sudo /etc/init.d/ssh stop 해줘야 한다