我使用的是 DELL Precision 5510，其规格如下：
- 32GB RAM
- 英特尔® 酷睿™ i7-6820HQ CPU @ 2.70GHz × 8
- 1TB 固态硬盘
- 操作系统类型 64位
启动过程非常长，比之前的任何 Ubuntu 版本都要长得多。Askubuntu 上有几个类似的问题。但是，大多数问题都没有答案。此外，这些问题似乎非常个别，因此非常不同。
这是dmsg > boot.txt3 秒后显示的内容：
[ 2.907012] clocksource: Switched to clocksource tsc
[ 3.186454] systemd[1]: systemd 229 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN)
[ 3.186595] systemd[1]: Detected architecture x86-64.
[ 3.186700] systemd[1]: Set hostname to <ron-Precision-5510>.
[ 3.239287] systemd[1]: Listening on Journal Socket (/dev/log).
[ 3.239322] systemd[1]: Listening on fsck to fsckd communication Socket.
[ 3.239357] systemd[1]: Listening on Journal Audit Socket.
[ 3.239364] systemd[1]: Reached target User and Group Name Lookups.
[ 3.239410] systemd[1]: Created slice System Slice.
[ 3.239452] systemd[1]: Created slice system-systemd\x2dcryptsetup.slice.
[ 3.239547] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[ 3.239559] systemd[1]: Listening on udev Kernel Socket.
[ 3.239564] systemd[1]: Reached target Remote File Systems (Pre).
[ 3.239580] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[ 3.239585] systemd[1]: Reached target Remote File Systems.
[ 3.239620] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[ 3.239632] systemd[1]: Listening on Syslog Socket.
[ 3.239660] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 3.239688] systemd[1]: Created slice User and Session Slice.
[ 3.239692] systemd[1]: Reached target Slices.
[ 3.239711] systemd[1]: Listening on Journal Socket.
[ 3.239937] systemd[1]: Starting Journal Service...
[ 3.240228] systemd[1]: Mounting Huge Pages File System...
[ 3.240554] systemd[1]: Mounting Debug File System...
[ 3.241415] systemd[1]: Mounting POSIX Message Queue File System...
[ 3.241667] systemd[1]: Started Braille Device Support.
[ 3.242125] systemd[1]: Started Read required files in advance.
[ 3.242285] systemd[1]: Created slice system-getty.slice.
[ 3.242643] systemd[1]: Starting Uncomplicated firewall...
[ 3.242695] systemd[1]: Listening on udev Control Socket.
[ 3.243342] systemd[1]: Starting Load Kernel Modules...
[ 3.243653] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[ 3.245163] random: nonblocking pool is initialized
[ 3.245522] systemd[1]: Started Uncomplicated firewall.
[ 3.245708] systemd[1]: Started Create list of required static device nodes for the current kernel.
[ 3.245812] systemd[1]: Mounted Huge Pages File System.
[ 3.245907] systemd[1]: Mounted Debug File System.
[ 3.245995] systemd[1]: Mounted POSIX Message Queue File System.
[ 3.250219] lp: driver loaded but no devices found
[ 3.251704] ppdev: user-space parallel port driver
[ 3.254661] systemd[1]: Started Load Kernel Modules.
[ 3.261359] systemd[1]: Mounting FUSE Control File System...
[ 3.261678] systemd[1]: Starting Apply Kernel Variables...
[ 3.261968] systemd[1]: Starting Create Static Device Nodes in /dev...
[ 3.262733] systemd[1]: Mounted FUSE Control File System.
[ 3.263991] systemd[1]: Started Journal Service.
[ 3.297023] EXT4-fs (nvme0n1p3): re-mounted. Opts: errors=remount-ro
[ 3.312048] systemd-journald[295]: Received request to flush runtime journal from PID 1
[ 3.353474] ACPI Warning: \_SB_.IETM._ART: Return Package type mismatch at index 0 - found Integer, expected Reference (20150930/nspredef-297)
[ 3.353481] ACPI: Invalid package element [0]: got number, expecting [R]
[ 3.353483] _ART package 0 is invalid, ignoredACPI Warning: \_SB_.IETM._TRT: Return Package has no elements (empty) (20150930/nsprepkg-126)
[ 3.357657] wmi: Mapper loaded
[ 3.364794] Bluetooth: Core ver 2.21
[ 3.364806] NET: Registered protocol family 31
[ 3.364807] Bluetooth: HCI device and connection manager initialized
[ 3.364810] Bluetooth: HCI socket layer initialized
[ 3.364812] Bluetooth: L2CAP socket layer initialized
[ 3.364816] Bluetooth: SCO socket layer initialized
[ 3.373681] Bluetooth: HCI UART driver ver 2.3
[ 3.373684] Bluetooth: HCI UART protocol H4 registered
[ 3.373685] Bluetooth: HCI UART protocol BCSP registered
[ 3.373686] Bluetooth: HCI UART protocol LL registered
[ 3.373687] Bluetooth: HCI UART protocol ATH3K registered
[ 3.373688] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 3.373733] Bluetooth: HCI UART protocol Intel registered
[ 3.373746] Bluetooth: HCI UART protocol BCM registered
[ 3.373748] Bluetooth: HCI UART protocol QCA registered
[ 3.383616] proc_thermal 0000:00:04.0: enabling device (0000 -> 0002)
[ 3.386304] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[ 3.388847] intel-lpss 0000:00:15.0: enabling device (0000 -> 0002)
[ 3.396047] usbcore: registered new interface driver btusb
[ 3.396228] input: HID 046a:0023 as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/0003:046A:0023.0002/input/input10
[ 3.396470] media: Linux media interface: v0.10
[ 3.397178] Bluetooth: hci0: Bootloader revision 0.0 build 2 week 52 2014
[ 3.397550] idma64 idma64.0: Found Intel integrated DMA 64-bit
[ 3.400472] input: ELAN Touchscreen as /devices/pci0000:00/0000:00:14.0/usb1/1-9/1-9:1.0/0003:04F3:21D5.0004/input/input11
[ 3.402186] Bluetooth: hci0: Device revision is 5
[ 3.402188] Bluetooth: hci0: Secure boot is enabled
[ 3.402189] Bluetooth: hci0: OTP lock is enabled
[ 3.402190] Bluetooth: hci0: API lock is enabled
[ 3.402190] Bluetooth: hci0: Debug lock is disabled
[ 3.402193] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[ 3.403949] Linux video capture interface: v2.00
[ 3.406496] Intel(R) Wireless WiFi driver for Linux
[ 3.406498] Copyright(c) 2003- 2015 Intel Corporation
[ 3.406553] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002)
[ 3.407462] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-19.ucode failed with error -2
[ 3.407473] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-18.ucode failed with error -2
[ 3.407482] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-17.ucode failed with error -2
[ 3.407780] iwlwifi 0000:02:00.0: Unsupported splx structure
[ 3.409232] Bluetooth: hci0: Found device firmware: intel/ibt-11-5.sfi
[ 3.412056] uvcvideo: Found UVC 1.00 device Integrated_Webcam_HD (1bcf:2b95)
[ 3.412099] intel-lpss 0000:00:15.1: enabling device (0000 -> 0002)
[ 3.412339] idma64 idma64.1: Found Intel integrated DMA 64-bit
[ 3.416365] iwlwifi 0000:02:00.0: loaded firmware version 16.242414.0 op_mode iwlmvm
[ 3.421072] input: Integrated_Webcam_HD as /devices/pci0000:00/0000:00:14.0/usb1/1-12/1-12:1.0/input/input12
[ 3.428893] AVX2 version of gcm_enc/dec engaged.
[ 3.428896] AES CTR mode by8 optimization enabled
[ 3.429015] mei_me 0000:00:16.0: enabling device (0000 -> 0002)
[ 3.431460] Adding 33393660k swap on /dev/nvme0n1p4. Priority:-1 extents:1 across:33393660k SSFS
[ 3.435183] nvidia: module license 'NVIDIA' taints kernel.
[ 3.435185] Disabling lock debugging due to kernel taint
[ 3.439596] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[ 3.444242] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
[ 3.444310] iwlwifi 0000:02:00.0: L1 Enabled - LTR Disabled
[ 3.444417] nvidia 0000:01:00.0: enabling device (0006 -> 0007)
[ 3.444583] nvidia-nvlink: Nvlink Core is being initialized, major device number 243
[ 3.444595] iwlwifi 0000:02:00.0: L1 Enabled - LTR Disabled
[ 3.444671] [drm] Initialized nvidia-drm 0.0.0 20150116 for 0000:01:00.0 on minor 1
[ 3.444684] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 361.42 Tue Mar 22 18:10:58 PDT 2016
[ 3.450514] cherry 0003:046A:0023.0002: input,hidraw1: USB HID v1.11 Keyboard [HID 046a:0023] on usb-0000:00:14.0-2/input0
[ 3.450855] hid-multitouch 0003:04F3:21D5.0004: input,hiddev0,hidraw2: USB HID v1.10 Device [ELAN Touchscreen] on usb-0000:00:14.0-9/input0
[ 3.451224] usbcore: registered new interface driver uvcvideo
[ 3.451226] USB Video Class driver (1.1.1)
[ 3.451642] intel_rapl: Found RAPL domain package
[ 3.451644] intel_rapl: Found RAPL domain core
[ 3.451645] intel_rapl: Found RAPL domain uncore
[ 3.451646] intel_rapl: Found RAPL domain dram
[ 3.452411] input: HID 046a:0023 as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.1/0003:046A:0023.0003/input/input14
[ 3.458745] Bluetooth: hci0: Failed to send firmware data (-38)
[ 3.470173] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)
[ 3.470300] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915_bpo])
[ 3.508203] input: Dell WMI hotkeys as /devices/virtual/input/input15
[ 3.509244] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
[ 3.539479] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC3266: line_outs=1 (0x17/0x0/0x0/0x0/0x0) type:speaker
[ 3.539482] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 3.539484] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
[ 3.539486] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0
[ 3.539487] snd_hda_codec_realtek hdaudioC0D0: inputs:
[ 3.539489] snd_hda_codec_realtek hdaudioC0D0: Headset Mic=0x18
[ 3.539491] snd_hda_codec_realtek hdaudioC0D0: Headphone Mic=0x1a
[ 3.539493] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x12
[ 3.539508] audit: type=1400 audit(1466404548.908:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/ubuntu-core-launcher" pid=682 comm="apparmor_parser"
[ 3.579758] audit: type=1400 audit(1466404548.948:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/cups-browsed" pid=685 comm="apparmor_parser"
[ 3.579983] cherry 0003:046A:0023.0003: input,hidraw3: USB HID v1.11 Device [HID 046a:0023] on usb-0000:00:14.0-2/input1
[ 3.582254] audit: type=1400 audit(1466404548.948:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session" pid=678 comm="apparmor_parser"
[ 3.582260] audit: type=1400 audit(1466404548.948:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session//chromium" pid=678 comm="apparmor_parser"
[ 3.583029] dell_laptop: Using i8042 filter function for receiving events
[ 3.583416] audit: type=1400 audit(1466404548.948:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/ippusbxd" pid=691 comm="apparmor_parser"
[ 3.584015] audit: type=1400 audit(1466404548.948:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/libvirtd" pid=692 comm="apparmor_parser"
[ 3.588420] audit: type=1400 audit(1466404548.952:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/tcpdump" pid=699 comm="apparmor_parser"
[ 3.588451] audit: type=1400 audit(1466404548.952:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="webbrowser-app" pid=683 comm="apparmor_parser"
[ 3.588457] audit: type=1400 audit(1466404548.952:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="webbrowser-app//oxide_helper" pid=683 comm="apparmor_parser"
[ 3.599384] cfg80211: World regulatory domain updated:
[ 3.599387] cfg80211: DFS Master region: unset
[ 3.599388] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 3.599390] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 3.599392] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 3.599393] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 3.599395] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 3.599397] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 3.599398] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 3.599399] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 3.599401] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 3.601737] input: HDA Intel PCH Headphone Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input16
[ 3.601838] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input17
[ 3.601917] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input18
[ 3.602016] input: HDA Intel PCH HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input19
[ 3.604364] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 361.42 Tue Mar 22 17:29:54 PDT 2016
[ 3.616616] nvidia-uvm: Loaded the UVM driver in lite mode, major device number 242
[ 3.623344] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 3.623385] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 3.623408] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 3.623429] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 3.623450] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 3.623482] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 3.623509] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 3.652047] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 3.726019] usb 1-4: USB disconnect, device number 4
[ 3.726052] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 3.726139] Bluetooth: hci0: Reading Intel version information failed (-19)
[ 3.727471] iwlwifi 0000:02:00.0 wlp2s0: renamed from wlan0
[ 3.759682] input: DLL06E5:01 06CB:7A13 Touchpad as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-7/i2c-DLL06E5:01/0018:06CB:7A13.0005/input/input20
[ 3.759766] hid-multitouch 0018:06CB:7A13.0005: input,hidraw4: I2C HID v1.00 Mouse [DLL06E5:01 06CB:7A13] on i2c-DLL06E5:01
[ 3.878403] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 93.305893] cgroup: new mount options do not match the existing superblock, will be ignored
[ 93.318665] ACPI: Invalid package element [0]: got number, expecting [R]
[ 93.318667] _ART package 0 is invalid, ignored
[ 93.318680] ACPI: Invalid package element [0]: got number, expecting [R]
[ 93.318682] _ART package 0 is invalid, ignored
[ 93.334787] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 93.334789] Bluetooth: BNEP filters: protocol multicast
[ 93.334792] Bluetooth: BNEP socket layer initialized
[ 93.561380] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 93.561466] iwlwifi 0000:02:00.0: L1 Enabled - LTR Disabled
[ 93.561725] iwlwifi 0000:02:00.0: L1 Enabled - LTR Disabled
[ 93.706086] iwlwifi 0000:02:00.0: L1 Enabled - LTR Disabled
[ 93.706431] iwlwifi 0000:02:00.0: L1 Enabled - LTR Disabled
[ 93.783642] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 93.800490] bbswitch: version 0.8
[ 93.800495] bbswitch: Found integrated VGA device 0000:00:02.0: \_SB_.PCI0.GFX0
[ 93.800500] bbswitch: Found discrete VGA device 0000:01:00.0: \_SB_.PCI0.PEG0.PEGP
[ 93.800507] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 93.800558] bbswitch: detected an Optimus _DSM function
[ 93.800877] bbswitch: Succesfully loaded. Discrete card 0000:01:00.0 is on
[ 93.898711] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[ 94.328351] vgaarb: this pci device is not a vga device
[ 94.331923] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 94.331978] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 94.332002] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 94.332022] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 94.332043] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 94.332074] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 94.332094] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 94.335196] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 94.350824] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 94.361165] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 94.385587] Ebtables v2.0 registered
[ 94.525536] nvidia-modeset: Allocated GPU:0 (GPU-2aab5f16-8246-e142-9e85-24cf66dd2449) @ PCI:0000:01:00.0
[ 94.525617] nvidia-modeset: Freed GPU:0 (GPU-2aab5f16-8246-e142-9e85-24cf66dd2449) @ PCI:0000:01:00.0
[ 94.621407] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
[ 94.684423] device virbr0-nic entered promiscuous mode
[ 94.833169] nf_conntrack version 0.5.0 (65536 buckets, 262144 max)
[ 94.885554] virbr0: port 1(virbr0-nic) entered listening state
[ 94.885566] virbr0: port 1(virbr0-nic) entered listening state
[ 94.947817] virbr0: port 1(virbr0-nic) entered disabled state
[ 94.950086] device virbr0-nic left promiscuous mode
[ 94.950109] virbr0: port 1(virbr0-nic) entered disabled state
[ 95.316452] vgaarb: this pci device is not a vga device
[ 96.933543] wlp2s0: authenticate with 5c:49:79:5e:b2:55
[ 96.942271] wlp2s0: send auth to 5c:49:79:5e:b2:55 (try 1/3)
[ 96.948025] wlp2s0: authenticated
[ 96.948303] wlp2s0: associate with 5c:49:79:5e:b2:55 (try 1/3)
[ 96.952720] wlp2s0: RX AssocResp from 5c:49:79:5e:b2:55 (capab=0x411 status=0 aid=1)
[ 96.961974] wlp2s0: associated
[ 96.962011] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
[ 97.041910] wlp2s0: Limiting TX power to 20 (23 - 3) dBm as advertised by 5c:49:79:5e:b2:55
但是，我不知道如何从中提取有价值的信息。
systemd-analyze plot > systemd-analyze.html可以看到输出这里。据我所见，中间大约有 90 秒的间隔sys-devices-pci0000:00-0000:00:1c.0-0000:02:00.0-net-wlp2s0.device，sysinit.target在此期间什么也没有发生。而且apt-daily.services似乎需要 47 秒才能激活。
如果这两个问题是导致启动过程缓慢的主要原因，我该怎么做才能加快启动速度？你还能发现其他问题吗？