새로 설치된 Ubuntu 18.04.2 LTS의 느린 부팅

Question

내 시스템에 Ubuntu 18.04.2 LTS를 새로 설치했습니다. 그런데 부팅시간이 너무 길어요.

systemd-analyze blame산출:

systemd-analyze blame
     35.473s plymouth-quit-wait.service
     29.139s dev-sda1.device
     25.907s gpu-manager.service
     23.627s systemd-journal-flush.service
     19.170s console-setup.service
     15.164s apparmor.service
     13.566s snap-gnome\x2d3\x2d26\x2d1604-74.mount
     12.866s snap-gnome\x2dsystem\x2dmonitor-57.mount
     11.583s snap-gnome\x2dlogs-45.mount
     10.989s dns-clean.service
      7.088s NetworkManager-wait-online.service
      4.690s snapd.service
      4.595s systemd-tmpfiles-setup-dev.service
      4.298s accounts-daemon.service
      4.238s NetworkManager.service
      3.946s networking.service
      3.321s dev-loop7.device
      3.289s bolt.service
      3.215s udisks2.service
      3.123s dev-loop5.device
      3.079s systemd-resolved.service
      3.062s networkd-dispatcher.service
      3.041s dev-loop6.device

systemd-analyze critical-chain산출:

The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.

graphical.target @1min 10.729s
└─multi-user.target @1min 10.729s
  └─kerneloops.service @42.318s +98ms
    └─network-online.target @42.267s
      └─NetworkManager-wait-online.service @35.178s +7.088s
        └─NetworkManager.service @30.934s +4.238s
          └─dbus.service @29.177s
            └─basic.target @29.166s
              └─sockets.target @29.166s
                └─snapd.socket @29.082s +83ms
                  └─sysinit.target @28.975s
                    └─systemd-backlight@backlight:intel_backlight.service @54.82
                      └─system-systemd\x2dbacklight.slice @54.820s
                        └─system.slice @2.404s
                          └─-.slice @2.376s

부팅 시간 문제를 해결하는 방법은 무엇입니까?

Answer 1

스냅, gpu-manager.service를 비활성화해 보십시오. 이러한 서비스에는 시간이 많이 걸립니다. 어떤 서비스가 나쁜 사람인지 판단할 수 있다면 해당 특정 서비스에 대해 작업을 수행하고 그 이유를 찾을 수 있습니다.