我有双启动系统。笔记本电脑是戴尔 G3。
- 内存：8GB
- 处理器：Intel® Core™ i5-8300H CPU @ 2.30GHz × 8
- 显卡：Nvidia GTX 1050 4GB
- 存储：128 SSD + 1TB HDD。
我在 SSD 上安装了 Windows。HDD 的磁盘详细信息如下：1. 分区 3 有根目录，2. 分区 4 有主目录，3. 分区 5 有交换目录
分区 3 为根目录，分区 4 为主目录，分区 5 为交换目录
我已经运行了 systemd-analyze blame 和 systemd-analyze critical-chain，得到了以下结果：
systemd-analyze blame
30.087s plymouth-quit-wait.service
23.801s dev-sda3.device
15.536s systemd-journal-flush.service
15.423s snapd.service
14.678s networkd-dispatcher.service
13.889s gpu-manager.service
13.618s dev-loop8.device
13.365s udisks2.service
13.087s ModemManager.service
11.897s dev-loop11.device
11.577s dev-loop22.device
11.099s dev-loop0.device
11.086s dev-loop18.device
10.733s dev-loop6.device
10.655s dev-loop17.device
10.626s dev-loop23.device
10.578s dev-loop9.device
10.458s dev-loop14.device
10.347s dev-loop20.device
9.928s dev-loop10.device
9.723s dev-loop4.device
9.626s accounts-daemon.service
9.319s dev-loop16.device
9.235s dev-loop13.device
9.047s dev-loop24.device
8.983s dev-loop3.device
8.884s NetworkManager.service
8.869s dev-loop25.device
8.779s dev-loop15.device
8.758s grub-common.service
8.708s apport.service
8.403s dev-loop2.device
8.177s dev-loop21.device
7.571s systemd-udevd.service
7.507s avahi-daemon.service
7.470s thermald.service
7.461s rsyslog.service
7.459s bluetooth.service
7.395s alsa-restore.service
7.381s systemd-logind.service
7.200s pppd-dns.service
7.115s wpa_supplicant.service
7.038s lm-sensors.service
6.801s dev-loop7.device
6.497s dev-loop1.device
6.405s dev-loop19.device
6.226s plymouth-read-write.service
5.865s dev-loop12.device
5.624s dev-loop5.device
3.996s snap-wine\x2dplatform\x2d3\x2dstable-6.mount
3.777s snap-gnome\x2dsystem\x2dmonitor-100.mount
3.746s apparmor.service
对于关键链
systemd-analyze critical-chain
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 16.342s
└─multi-user.target @1min 16.342s
└─snapd.seeded.service @52.761s +261ms
└─snapd.service @37.333s +15.423s
└─basic.target @36.296s
└─sockets.target @36.296s
└─snapd.socket @36.275s +20ms
└─sysinit.target @36.027s
└─haveged.service @33.560s
└─apparmor.service @29.802s +3.746s
└─local-fs.target @29.784s
└─home.mount @29.684s +99ms
└─systemd-fsck@dev-disk-by\x2duuid-197da7c9\x2d3877\x2d4ac3\x2da5f4\x2d6853737eacc1.service @28.665s +992ms
└─dev-disk-by\x2duuid-197da7c9\x2d3877\x2d4ac3\x2da5f4\x2d6853737eacc1.device @28.664s
知道是什么导致我的系统启动时间很长吗？我在 Ubuntu 19.04 上遇到了类似的问题。我将系统升级到 19.10。这没有任何区别。