ubuntu 启动时间过长以及无线网卡必须重新插拔才管用

[finisher]

<r>小弟新手，把家里的老爷机装了ubuntu , 发现两个问题<br/>
版本为 4.15.0-43-generic
1. 开机启动时间过场
<LIST><s>

• </s><LI>44.130s dev-mapper-ubuntu\x2d\x2dvg\x2droot.device<br/>
  41.109s systemd-journal-flush.service<br/>
  30.846s apparmor.service<br/>
  27.506s dev-loop11.device<br/>
  26.040s plymouth-read-write.service<br/>
  22.217s plymouth-quit-wait.service<br/>
  9.423s systemd-udevd.service<br/>
  9.162s lvm2-monitor.service<br/>
  8.690s keyboard-setup.service<br/>
  5.335s snapd.service<br/>
  3.999s udisks2.service<br/>
  3.813s NetworkManager.service<br/>
  3.728s ModemManager.service<br/>
  3.700s accounts-daemon.service<br/>
  3.168s thermald.service<br/>
  3.084s grub-common.service<br/>
  2.539s avahi-daemon.service<br/>
  2.287s networkd-dispatcher.service<br/>
  2.091s dev-loop9.device<br/>
  2.077s dev-loop8.device<br/>
  2.028s dev-loop10.device<br/>
  1.918s dev-loop5.device<br/>
  1.880s dev-loop7.device<br/>
  1.876s dev-loop6.device<br/>
  1.835s dev-loop12.device<br/>
  1.735s systemd-random-seed.service<br/>
  1.627s dev-loop13.device<br/>
  1.617s polkit.service<br/>
  1.550s dev-loop4.device<br/>
  1.461s dev-loop0.device<br/>
  1.461s wpa_supplicant.service<br/>
  1.412s dev-loop3.device<br/>
  1.381s dev-loop1.device<br/>
  1.332s rsyslog.service<br/>
  1.303s dev-loop2.device<br/>
  1.003s systemd-remount-fs.service</LI>
  <e>

</e></LIST></r>
之前选择安装时 选择了 LVM

• finisher@finisher-aaa:~/Documents$ systemd-analyze
  Startup finished in 3.254s (kernel) + 1min 12.800s (userspace) = 1min 16.055s
  graphical.target reached after 1min 12.776s in userspace

• 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 12.776s
  └─multi-user.target @1min 12.776s
  └─snapd.seeded.service @52.074s +14ms
  └─snapd.service @46.738s +5.335s
  └─basic.target @46.601s
  └─sockets.target @46.601s
  └─snapd.socket @46.600s +577us
  └─sysinit.target @46.508s
  └─swap.target @46.508s
  └─dev-mapper-ubuntu\x2d\x2dvg\x2dswap_1.swap @46.453s +54ms
  └─dev-mapper-ubuntu\x2d\x2dvg\x2dswap_1.device @46.452s

2. 无线网卡每次在重启后必须重新插拔 才管用

希望各位大大不能不吝帮助

[astolia]

具体什么配置？十年前的主流配置水准+机械硬盘机器开机这个速度算快的了。网卡你也要提供具体的型号，以及启动后再经过重新插拔时dmesg的输出才好判断。

[feng8899]

老爷机建议安装Lubuntu