1. 修改/etc/systemd/system.conf
sudo vim /etc/systemd/system.conf
2. 找到一下两行
#DefaultTimeoutStartSec=90s
#DefaultTimeoutStopSec=90s
3. 取消注释并修改为
DefaultTimeoutStartSec=10s
DefaultTimeoutStopSec=10s
4. 立即生效
sudo systemctl daemon-reload