我的 vps 是 centos7, 结果之前重启了一下之后启动时就在半途 halt 住了，哪位能帮忙参考一下问题出在哪？

[ OK ] Activated swap /dev/xvdb.
[ OK ] Reached target Swap.
[ OK ] Reached target System Initialization.
[ OK ] Reached target Timers.
[ OK ] Listening on Avahi mDNS/DNS-SD Stack Activation Socket.
[ OK ] Listening on D-Bus System Message Bus Socket.
[ OK ] Reached target Sockets.
[ OK ] Reached target Basic System.
Starting firewalld - dynamic firewall daemon...
Starting Dump dmesg to /var/log/dmesg...
[ OK ] Reached target Multi-User System.

到了这个位置就不动了