操作系统：CentOS Linux release 7.5.1804 (Core)，物理机非docker，非虚拟机
我先用 升级 clickhouse yum localinstall ./clickhouse-*.rpm，然后我后悔了，我用 降级 clickhouse yum downgrade clickhouse-xx-xx.rpm，然后我发现systemctl status clickhouse-serverthrow
# systemctl status clickhouse-server
Failed to get D-Bus connection: Operation not permitted
并且
[root@cu75 ~]# systemctl
Failed to get D-Bus connection: Operation not permitted
[root@cu75 ~]# systemctl start dbus
Failed to get D-Bus connection: Operation not permitted
[root@cu75 ~]#
但 dbus 正在运行
[root@cu75 ~]# ps -ef | grep dbus
dbus 1646 1 0 2021 ? 00:48:47 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
root 44000 1 0 15:31 ? 00:00:00 /usr/sbin/abrt-dbus -t133
root 44363 429726 0 15:32 pts/0 00:00:00 grep --color=auto dbus
gdm 240198 1 0 2021 ? 00:00:00 dbus-launch --exit-with-session /usr/libexec/gnome-session-binary --autostart /usr/share/gdm/greeter/autostart
gdm 240199 1 0 2021 ? 00:00:00 /usr/bin/dbus-daemon --fork --print-pid 5 --print-address 7 --session
gdm 240224 240219 0 2021 ? 00:00:00 /bin/dbus-daemon --config-file=/usr/share/defaults/at-spi2/accessibility.conf --nofork --print-address 3
luhongw+ 436050 1 0 14:08 ? 00:00:00 /usr/bin/dbus-daemon --fork --print-pid 4 --print-address 6 --session
root 436172 1 0 14:09 ? 00:00:00 /usr/bin/dbus-daemon --fork --print-pid 4 --print-address 6 --session
[root@cu75 ~]#
我在这个网站上检查了所有类似的问题，但大多数都是docker镜像，有什么解决方案可以解决吗？