因此，从 ubuntu 18.04 更新到 18.10 后，我的笔记本电脑启动缓慢，有时会冻结，我不得不重新启动
我的笔记本电脑规格
一些可能有助于发现问题的信息。
➜ ~ systemd-analyze
Startup finished in 4.604s (firmware) + 4.819s (loader) + 3.729s (kernel) + 1min 7.831s (userspace) = 1min 20.985s
graphical.target reached after 1min 5.351s in userspace
➜ ~ systemd-analyze blame
28.687s [email protected]
24.988s dev-sda2.device
18.408s systemd-journal-flush.service
16.287s ModemManager.service
16.195s NetworkManager-wait-online.service
15.235s snapd.service
13.579s preload.service
13.383s dev-loop33.device
13.325s dev-loop25.device
13.184s dev-loop29.device
13.139s udisks2.service
12.751s dev-loop31.device
12.746s dev-loop27.device
12.515s dev-loop23.device
12.445s dev-loop32.device
12.345s plymouth-quit-wait.service
12.231s dev-loop34.device
11.973s dev-loop26.device
11.730s dev-loop18.device
11.685s dev-loop20.device
11.673s networkd-dispatcher.service
11.563s dev-loop28.device
11.556s dev-loop24.device
11.466s dev-loop14.device
11.432s dev-loop30.device
11.268s accounts-daemon.service
11.019s dev-loop15.device
10.996s dev-loop19.device
10.934s dev-loop21.device
10.912s NetworkManager.service
10.622s dev-loop12.device
10.521s dev-loop16.device
10.519s dev-loop22.device
10.339s dev-loop9.device
10.303s dev-loop17.device
10.256s dev-loop13.device
9.496s dev-loop11.device
9.451s dev-loop10.device
9.247s dev-loop8.device
8.033s dev-loop4.device
8.025s avahi-daemon.service
7.893s networking.service
7.800s apport.service
7.742s sysstat.service
7.651s gpu-manager.service
7.603s systemd-logind.service
7.570s rsyslog.service