当我尝试运行 sudo apt-get upgrade 时，出现以下错误：
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up libpam-systemd:amd64 (204-5ubuntu20.7) ...
start: Job failed to start
invoke-rc.d: initscript systemd-logind, action "start" failed.
dpkg: error processing package libpam-systemd:amd64 (--configure):
subprocess installed …14.04 ×1