Preparing to unpack .../mysql-server-5.7_5.7.33-0ubuntu0.16.04.1_amd64.deb ...
Unpacking mysql-server-5.7 (5.7.33-0ubuntu0.16.04.1) over (5.7.24-0ubuntu0.16.04.1) ...
Preparing to unpack .../mysql-server-core-5.7_5.7.33-0ubuntu0.16.04.1_amd64.deb ...
Unpacking mysql-server-core-5.7 (5.7.33-0ubuntu0.16.04.1) over (5.7.24-0ubuntu0.16.04.1) ...
Preparing to unpack .../psmisc_22.21-2.1ubuntu0.1_amd64.deb ...
Unpacking psmisc (22.21-2.1ubuntu0.1) over (22.21-2.1build1) ...
Preparing to unpack .../openssl_1.0.2g-1ubuntu4.20_amd64.deb ...
Unpacking openssl (1.0.2g-1ubuntu4.20) over (1.0.2g-1ubuntu4.14) ...
Preparing to unpack .../ca-certificates_20210119~16.04.1_all.deb ...
Unpacking ca-certificates (20210119~16.04.1) over (20170717~16.04.1) ...
Preparing to unpack .../openssh-client_1%3a7.2p2-4ubuntu2.10_amd64.deb ...
Unpacking openssh-client (1:7.2p2-4ubuntu2.10) over (1:7.2p2-4ubuntu2.6) ...
dpkg: error processing archive /var/cache/apt/archives/openssh-client_1%3a7.2p2-4ubuntu2.10_amd64.deb (--unpack):
 unable to make backup link of './usr/lib/openssh/ssh-keysign' before installing new version: Input/output error