$ systemd-analyze blame
11.459s apt-daily.service
3.242s accounts-daemon.service
2.958s networking.service
2.761s gpu-manager.service
2.658s NetworkManager.service
2.253s apparmor.service
2.224s dev-sda2.device
2.204s plymouth-quit-wait.service
2.198s lightdm.service
1.853s thermald.service
1.637s loadcpufreq.service
1.376s virtualbox.service
1.236s rsyslog.service
1.190s upower.service
1.186s console-kit-log-system-start.service
1.166s grub-common.service
1.084s lm-sensors.service
992ms avahi-daemon.service
986ms systemd-fsck ....
下這個指令 sudo systemctl edit apt-daily.timer,貼上以下內容,產生一個文檔 apt-daily timer configuration :
[Timer]
OnBootSec=15min
OnUnitActiveSec=1d
AccuracySec=1h
RandomizedDelaySec=30min
最後按 ^O 寫入、再按^X離開。即完成設定。
重新開機看看囉...
另,若是像
NetworkManager-wait-online.service, 可以試著用「disable」指令把它取消:
sudo systemctl disable NetworkManager-wait-online.service
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