我的系统启动需要很长时间。
systemd 分析：
启动完成用时 8.487 秒（内核）+3 分 544 毫秒（用户空间）=3 分 9.032 秒
systemd-analyze 责任：
10.451s NetworkManager-wait-online.service 462ms lvm2-monitor.service 313ms plymouth-quit-wait.service 313ms plymouth-quit.service 229ms dev-sda1.device 112ms accounts-daemon.service 104ms ModemManager.service 92ms ufw.service 81ms grub-common.service 66ms systemd-hostnamed.service 65ms systemd-logind.service 65ms thermald.service 56ms upower.service 56ms avahi-daemon.service 54ms NetworkManager.service 54ms loadcpufreq.service 43ms systemd-udev-trigger.service 42ms virtualbox-guest-utils.service 41ms virtualbox.service 39ms console-setup.service 37ms irqbalance.service 36ms keyboard-setup.service 35ms ondemand.service
dmesg 中的间隙 1
[ 8.863159] Bluetooth: hci0: BCM20702A1 (001.002.014) build 1469 [ 8.864323] bluetooth hci0: Direct firmware load for brcm/BCM20702A1-0b05-17cf.hcd failed with error -2 [ 8.864325] Bluetooth: hci0: BCM: Patch brcm/BCM20702A1-0b05-17cf.hcd not found [ 8.997167] wlan0: Broadcom BCM43b1 802.11 Hybrid Wireless Controller 6.30.223.248 (r487574) [ 8.997895] wl 0000:03:00.0 wlp3s0: renamed from wlan0 [ 98.812110] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 98.812113] Bluetooth: BNEP filters: protocol multicast [ 98.812116] Bluetooth: BNEP socket layer initialized [ 98.815767] cgroup: new mount options do not match the existing superblock, will be ignored
差距 2
[ 99.048746] IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready [ 99.280376] IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready [ 99.285219] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready [ 109.372035] vboxdrv: Found 8 processor cores [ 109.387960] vboxdrv: TSC mode is Invariant, tentative frequency 3997683369 Hz [ 109.387961] vboxdrv: Successfully loaded version 5.0.24_Ubuntu (interface 0x00240000)
差距 3
[ 109.390945] VBoxNetFlt: Successfully started. [ 109.393473] VBoxNetAdp: Successfully started. [ 109.396341] VBoxPciLinuxInit [ 109.397795] vboxpci: IOMMU not found (not registered) [ 118.560770] cfg80211: Regulatory domain changed to country: BE [ 118.560772] cfg80211: DFS Master region: ETSI [ 118.560773] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time) [ 118.560774] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) [ 118.560776] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A) [ 118.560776] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s) [ 118.560777] cfg80211: (5490000 KHz - 5710000 KHz @ 160000 KHz), (N/A, 2700 mBm), (0 s) [ 118.560778] cfg80211: (57000000 KHz - 66000000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A) [ 125.752904] Bluetooth: RFCOMM TTY layer initialized [ 125.752909] Bluetooth: RFCOMM socket layer initialized [ 125.752912] Bluetooth: RFCOMM ver 1.11
差距 4
[ 126.399364] EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts: (null) [ 191.260055] [UFW BLOCK] IN=wlp3s0 OUT= MAC=6c:71:d9:f1:e3:f8:5c:35:3b:93:57:77:08:00 SRC=192.168.0.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=25083 PROTO=2
其他信息： 硬件
我最近安装了 win10 的双启动设置。我的 SSD 被分成了 2 个分区（sda1 有 win10，sda2 有 Linux Mint）。我删除了 sda1，将 sda2 分区复制到 sda1，调整了 sda1 的大小以包含整个磁盘，并重新创建了一个交换分区，正如你在这里看到的
我对 Linux 还很陌生，尝试过各种解决方案，比如在网络管理器上设置较低的超时时间（以前需要 30 秒，现在超时时间为 10 秒）
有什么想法吗？
答案1
我能够显著增加启动时间 (22.242 秒)。/etc/crypttab 中我的交换分区的 UUID 不正确。