在centos8系统下安装centos7的docker，network服务启动失败

[还没淹死的鱼]

从docker直接pull的centos7.6镜像，里面缺很多东西，手动安装了net-tools后，network服务仍无法启动：

Jan 06 01:44:39 4eb994b9ebde kernel: loop: module loaded
Jan 06 01:44:39 4eb994b9ebde systemd-udevd[3184]: inotify_add_watch(7, /dev/loop0, 10) failed: No such file or
directory
Jan 06 01:44:39 4eb994b9ebde systemd-udevd[3181]: inotify_add_watch(7, /dev/loop0, 10) failed: No such file or
directory
Jan 06 01:44:40 4eb994b9ebde kernel: ISO 9660 Extensions: Microsoft Joliet Level 3
Jan 06 01:44:40 4eb994b9ebde kernel: ISO 9660 Extensions: Microsoft Joliet Level 3
Jan 06 01:44:40 4eb994b9ebde kernel: ISO 9660 Extensions: RRIP_1991A
Jan 06 01:44:40 4eb994b9ebde systemd-udevd[3180]: inotify_add_watch(7, /dev/loop0, 10) failed: No such file or
directory

无法连外网，yum无法使用。
不知是否跟centos8有关系？