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文章标签:BOO  slow  引导  Ubuntu  APT  服务  

问题

我的引导太慢了,我不知道为什么。


$ systemd-analyze 


Startup finished in 10.975s (kernel) + 49.732s (userspace) = 1min 708ms


$ systemd-analyze blame 


 34.971s apt-daily.service


 20.590s snapd.refresh.service


 17.113s grub-common.service


 16.033s apport.service


 16.027s networking.service


 15.894s ondemand.service


 15.860s irqbalance.service


 15.655s speech-dispatcher.service


 11.695s ModemManager.service


 9.772s accounts-daemon.service


 8.626s NetworkManager-wait-online.service


 8.058s systemd-logind.service


 8.053s bluetooth.service


 7.944s gpu-manager.service


 7.896s alsa-restore.service


 7.892s pppd-dns.service


 7.882s rsyslog.service


 7.860s avahi-daemon.service


 7.844s dev-sda1.device


 7.842s systemd-user-sessions.service


 7.648s lightdm.service


 7.610s teamviewerd.service


 6.445s apparmor.service



此外,在启动期间,我看到一条消息,上面写着:


device descriptor read/all, error -62


ata1 softreset failed (device not ready) #most of the times


error loading journal #(sometimes)


Test WP failed, assume Write Enabled


Asking for cache data failed #most of the times


Assuming drive cache: write through



apt-daily.service减慢启动速度。如何解决这个问题?

我用的是Ubuntu MATE 16.04.


回答1

作为解决方法,请执行 sudo systemctl edit apt-daily.timer 然后将以下文本粘贴到编辑器窗口中:


# apt-daily timer configuration override


[Timer]


OnBootSec=15min


OnUnitActiveSec=1d


AccuracySec=1h


RandomizedDelaySec=30min



这会改变"timer"触发apt-daily.service,在启动后15 min和45 min之间的随机时间运行,之后每天运行一次。



文章标签:BOO  服务  引导  Ubuntu  slow  APT  

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