我最近重新分区了我的 SSD，之后我的机器需要 1 分钟以上的时间才能启动。在分区过程中，我删除了交换分区，并在以下工具的帮助下修复了相关问题： 这。看来我的根分区需要 30 秒才能挂载。我遗漏了什么？
/etc/fstab：
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name
devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda4 during installation
UUID=001df782-6f77-4838-a23b-ca9dae4c5265 / ext4
errors=remount-ro 0 1
# /boot/efi was on /dev/sda2 during installation
UUID=AC24-A33D /boot/efi vfat umask=0077 0 1
# /home was on /dev/sda6 during installation
UUID=dea563d6-ef07-43c3-a181-c1aa2d074447 /home ext4
defaults 0 2
# swap was on /dev/sda5 during installation
UUID=a77231a3-8f96-4fa4-873e-628b5c1e6c18 none swap sw 0 0
lsblk：
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 223.6G 0 disk
├─sda1 8:1 0 14.7G 0 part [SWAP]
├─sda2 8:2 0 100M 0 part /boot/efi
├─sda5 8:5 0 52.8G 0 part /
└─sda7 8:7 0 155.6G 0 part /home
sdb 8:16 0 1.8T 0 disk
└─sdb1 8:17 0 1.8T 0 part
dmesg：
...
[ 4.012563] Btrfs loaded, crc32c=crc32c-intel
[ 35.535953] EXT4-fs (sda5): mounted filesystem with ordered data mode. Opts: (null)
[ 35.678647] systemd[1]: Inserted module 'autofs4'
[ 35.721534] systemd[1]: systemd 245.4-4ubuntu3.6 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid)
[ 35.738166] systemd[1]: Detected architecture x86-64.
[ 35.759334] systemd[1]: Set hostname to <bilibraker-ThinkPad-T450>.
[ 35.759850] Lockdown: systemd: /dev/mem,kmem,port is restricted; see man kernel_lockdown.7
[ 35.807724] systemd-sysv-generator[353]: stat() failed on /etc/init.d/httpd, ignoring: No such file or directory
[ 35.813219] systemd-sysv-generator[353]: stat() failed on /etc/init.d/mysqld, ignoring: No such file or directory
[ 35.909992] systemd[1]: Created slice system-modprobe.slice.
[ 35.910245] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[ 35.910430] systemd[1]: Created slice User and Session Slice.
[ 35.910480] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 35.910688] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[ 35.910726] systemd[1]: Reached target User and Group Name Lookups.
[ 35.910737] systemd[1]: Reached target Remote File Systems.
[ 35.910745] systemd[1]: Reached target Slices.
[ 35.910759] systemd[1]: Reached target System Time Set.
[ 35.910766] systemd[1]: Reached target System Time Synchronized.
[ 35.910869] systemd[1]: Listening on Syslog Socket.
[ 35.910936] systemd[1]: Listening on fsck to fsckd communication Socket.
[ 35.910975] systemd[1]: Listening on initctl Compatibility Named Pipe.
[ 35.911123] systemd[1]: Listening on Journal Audit Socket.
[ 35.911186] systemd[1]: Listening on Journal Socket (/dev/log).
[ 35.911259] systemd[1]: Listening on Journal Socket.
[ 35.911342] systemd[1]: Listening on udev Control Socket.
[ 35.911398] systemd[1]: Listening on udev Kernel Socket.
[ 35.912194] systemd[1]: Mounting Huge Pages File System...
[ 35.913063] systemd[1]: Mounting POSIX Message Queue File System...
[ 35.914352] systemd[1]: Mounting Kernel Debug File System...
[ 35.915692] systemd[1]: Mounting Kernel Trace File System...
[ 35.917176] systemd[1]: Starting Journal Service...
[ 35.918810] systemd[1]: Starting Set the console keyboard layout...
[ 35.920280] systemd[1]: Starting Create list of static device nodes for the current kernel...
[ 35.920365] systemd[1]: Condition check resulted in Load Kernel Module drm being skipped.
[ 35.920945] systemd[1]: Condition check resulted in Set Up Additional Binary Formats being skipped.
[ 35.920986] systemd[1]: Condition check resulted in File System Check on Root Device being skipped.
[ 35.923590] systemd[1]: Starting Load Kernel Modules...
[ 35.924748] systemd[1]: Starting Remount Root and Kernel File Systems...
[ 35.926112] systemd[1]: Starting udev Coldplug all Devices...
[ 35.927413] systemd[1]: Starting Uncomplicated firewall...
[ 35.929595] systemd[1]: Mounted Huge Pages File System.
[ 35.929916] systemd[1]: Mounted POSIX Message Queue File System.
[ 35.930176] systemd[1]: Mounted Kernel Debug File System.
[ 35.930413] systemd[1]: Mounted Kernel Trace File System.
[ 35.931046] systemd[1]: Finished Create list of static device nodes for the current kernel.
[ 35.940197] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro
[ 35.941957] systemd[1]: Finished Remount Root and Kernel File Systems.
[ 35.943491] systemd[1]: Condition check resulted in Rebuild Hardware Database being skipped.
[ 35.943529] systemd[1]: Condition check resulted in Platform Persistent Storage Archival being skipped.
[ 35.946542] systemd[1]: Starting Load/Save Random Seed...
[ 35.947905] systemd[1]: Starting Create System Users...
[ 35.967176] lp: driver loaded but no devices found
[ 35.969578] bpfilter: Loaded bpfilter_umh pid 388
[ 35.969894] Started bpfilter
[ 35.982598] systemd[1]: Finished Load/Save Random Seed.
[ 35.984767] systemd[1]: Finished Create System Users.
[ 35.986045] systemd[1]: Starting Create Static Device Nodes in /dev...
[ 35.986065] ppdev: user-space parallel port driver
[ 35.996791] systemd[1]: Finished Load Kernel Modules.
[ 35.998251] systemd[1]: Mounting FUSE Control File System...
[ 35.999547] systemd[1]: Mounting Kernel Configuration File System...
[ 36.000740] systemd[1]: Starting Apply Kernel Variables...
[ 36.010567] systemd[1]: Mounted FUSE Control File System.
[ 36.010964] systemd[1]: Mounted Kernel Configuration File System.
[ 36.027814] systemd[1]: Finished Create Static Device Nodes in /dev.
[ 36.029113] systemd[1]: Starting udev Kernel Device Manager...
[ 36.031437] systemd[1]: Finished Set the console keyboard layout.
[ 36.031657] systemd[1]: Reached target Local File Systems (Pre).
[ 36.035785] systemd[1]: Finished Apply Kernel Variables.
[ 36.038451] systemd[1]: Started Journal Service.
[ 36.046875] systemd-journald[362]: Received client request to flush runtime journal.
[ 36.620178] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 36.620487] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 36.623305] RAPL PMU: API unit is 2^-32 Joules, 4 fixed counters, 655360 ms ovfl timer
[ 36.623307] RAPL PMU: hw unit of domain pp0-core 2^-14 Joules
[ 36.623308] RAPL PMU: hw unit of domain package 2^-14 Joules
[ 36.623308] RAPL PMU: hw unit of domain dram 2^-14 Joules
[ 36.623309] RAPL PMU: hw unit of domain pp1-gpu 2^-14 Joules
[ 36.656911] Intel(R) Wireless WiFi driver for Linux
[ 36.656913] Copyright(c) 2003- 2015 Intel Corporation
[ 36.677432] iwlwifi 0000:03:00.0: Found debug destination: EXTERNAL_DRAM
[ 36.677435] iwlwifi 0000:03:00.0: Found debug configuration: 0
[ 36.677776] iwlwifi 0000:03:00.0: loaded firmware version 29.1654887522.0 op_mode iwlmvm
[ 36.721482] iwlwifi 0000:03:00.0: Detected Intel(R) Dual Band Wireless AC 7265, REV=0x210
[ 36.735234] iwlwifi 0000:03:00.0: Applying debug destination EXTERNAL_DRAM
[ 36.736438] iwlwifi 0000:03:00.0: Allocated 0x00400000 bytes for firmware monitor.
[ 36.744453] iwlwifi 0000:03:00.0: base HW address: 94:65:9c:1e:a6:04
[ 36.756759] Non-volatile memory driver v1.3
[ 36.765038] thinkpad_acpi: ThinkPad ACPI Extras v0.26
[ 36.765040] thinkpad_acpi: http://ibm-acpi.sf.net/
[ 36.765041] thinkpad_acpi: ThinkPad BIOS JBET51WW (1.16 ), EC JBHT14WW
[ 36.765042] thinkpad_acpi: Lenovo ThinkPad T450, model 20BUS0EW11
[ 36.769565] thinkpad_acpi: radio switch found; radios are enabled
[ 36.769588] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
[ 36.769589] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
[ 36.784648] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[ 36.808197] thinkpad_acpi: battery 2 registered (start 0, stop 100)
[ 36.810364] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 36.810374] thinkpad_acpi: battery 1 registered (start 0, stop 100)
[ 36.810380] battery: new extension: ThinkPad Battery Extension
[ 36.810447] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input12
[ 36.810810] thermal thermal_zone3: failed to read out thermal zone (-61)
[ 36.817849] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 36.832484] input: HDA Intel HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.0/sound/card0/input13
[ 36.832556] input: HDA Intel HDMI HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.0/sound/card0/input14
[ 36.832627] input: HDA Intel HDMI HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.0/sound/card0/input15
[ 36.832702] input: HDA Intel HDMI HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:03.0/sound/card0/input16
[ 36.832763] input: HDA Intel HDMI HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:03.0/sound/card0/input17
[ 36.843573] snd_hda_codec_realtek hdaudioC1D0: autoconfig for ALC3232: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[ 36.843577] snd_hda_codec_realtek hdaudioC1D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 36.843579] snd_hda_codec_realtek hdaudioC1D0: hp_outs=2 (0x16/0x15/0x0/0x0/0x0)
[ 36.843580] snd_hda_codec_realtek hdaudioC1D0: mono: mono_out=0x0
[ 36.843581] snd_hda_codec_realtek hdaudioC1D0: inputs:
[ 36.843583] snd_hda_codec_realtek hdaudioC1D0: Dock Mic=0x19
[ 36.843585] snd_hda_codec_realtek hdaudioC1D0: Mic=0x1a
[ 36.843586] snd_hda_codec_realtek hdaudioC1D0: Internal Mic=0x12
[ 36.904907] input: HDA Intel PCH Dock Mic as /devices/pci0000:00/0000:00:1b.0/sound/card1/input18
[ 36.904986] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card1/input19
[ 36.905063] input: HDA Intel PCH Dock Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card1/input20
[ 36.905128] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card1/input21
[ 36.940446] intel_rapl_common: Found RAPL domain package
[ 36.940449] intel_rapl_common: Found RAPL domain core
[ 36.940450] intel_rapl_common: Found RAPL domain uncore
[ 36.940451] intel_rapl_common: Found RAPL domain dram
[ 36.953691] iwlwifi 0000:03:00.0 wlp3s0: renamed from wlan0
[ 36.970273] Adding 15353852k swap on /dev/sda1. Priority:-2 extents:1 across:15353852k SSFS
[ 37.044959] EXT4-fs (sda7): mounted filesystem with ordered data mode. Opts: (null)
[ 37.136263] audit: type=1400 audit(1632445166.795:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=740 comm="apparmor_parser"
[ 37.136269] audit: type=1400 audit(1632445166.795:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/cupsd" pid=740 comm="apparmor_parser"
[ 37.136272] audit: type=1400 audit(1632445166.795:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/cupsd//third_party" pid=740 comm="apparmor_parser"
[ 37.139507] audit: type=1400 audit(1632445166.799:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/tcpdump" pid=741 comm="apparmor_parser"
[ 37.147669] audit: type=1400 audit(1632445166.807:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="ippusbxd" pid=742 comm="apparmor_parser"
[ 37.150533] audit: type=1400 audit(1632445166.811:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=743 comm="apparmor_parser"
[ 37.150537] audit: type=1400 audit(1632445166.811:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=743 comm="apparmor_parser"
[ 37.164055] audit: type=1400 audit(1632445166.823:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/man" pid=748 comm="apparmor_parser"
[ 37.164059] audit: type=1400 audit(1632445166.823:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_filter" pid=748 comm="apparmor_parser"
[ 37.164061] audit: type=1400 audit(1632445166.823:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_groff" pid=748 comm="apparmor_parser"
[ 38.223221] Lockdown: Xorg: raw io port access is restricted; see man kernel_lockdown.7
[ 38.605663] iwlwifi 0000:03:00.0: Applying debug destination EXTERNAL_DRAM
[ 38.703867] iwlwifi 0000:03:00.0: Applying debug destination EXTERNAL_DRAM
[ 38.705159] iwlwifi 0000:03:00.0: FW already configured (0) - re-configuring
[ 38.720836] vboxdrv: loading out-of-tree module taints kernel.
[ 38.731420] vboxdrv: Found 4 processor cores
[ 38.750939] vboxdrv: TSC mode is Invariant, tentative frequency 2294684551 Hz
[ 38.750940] vboxdrv: Successfully loaded version 6.1.22 (interface 0x00300000)
[ 38.961270] VBoxNetFlt: Successfully started.
[ 38.964017] Bluetooth: Core ver 2.22
[ 38.964046] NET: Registered protocol family 31
[ 38.964047] Bluetooth: HCI device and connection manager initialized
[ 38.964051] Bluetooth: HCI socket layer initialized
[ 38.964054] Bluetooth: L2CAP socket layer initialized
[ 38.964058] Bluetooth: SCO socket layer initialized
[ 38.964979] VBoxNetAdp: Successfully started.
[ 39.010334] mc: Linux media interface: v0.10
[ 39.027983] videodev: Linux video capture interface: v2.00
[ 39.102543] usbcore: registered new interface driver btusb
[ 39.118003] Bluetooth: hci0: read Intel version: 370810011003110e00
[ 39.119066] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.8.10-fw-1.10.3.11.e.bseq
[ 39.141794] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 39.141796] Bluetooth: BNEP filters: protocol multicast
[ 39.141803] Bluetooth: BNEP socket layer initialized
[ 39.187184] uvcvideo: Found UVC 1.00 device Integrated Camera (04f2:b449)
[ 39.203546] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8:1.0/input/input22
[ 39.204143] uvcvideo: Found UVC 1.00 device HD Web Camera (05a3:9331)
[ 39.247096] uvcvideo: Failed to query (GET_INFO) UVC control 12 on unit 2: -32 (exp. 1).
[ 39.273105] uvcvideo: Failed to query (GET_INFO) UVC control 11 on unit 2: -32 (exp. 1).
[ 39.299943] input: HD Web Camera: HD Web Camera as /devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.4/2-3.4:1.0/input/input23
[ 39.300092] usbcore: registered new interface driver uvcvideo
[ 39.300093] USB Video Class driver (1.1.1)
[ 39.407988] Bluetooth: hci0: unexpected event for opcode 0xfc2f
[ 39.425024] Bluetooth: hci0: Intel firmware patch completed and activated
[ 39.515665] NET: Registered protocol family 38
[ 39.886153] usb 2-3.4: Warning! Unlikely big volume range (=3072), cval->res is probably wrong.
[ 39.886156] usb 2-3.4: [6] FU [Mic Capture Volume] ch = 1, val = -1536/1536/1
[ 39.886347] usbcore: registered new interface driver snd-usb-audio
[ 40.612009] Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7
[ 40.622856] Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7
[ 40.829743] Bluetooth: RFCOMM TTY layer initialized
[ 40.829750] Bluetooth: RFCOMM socket layer initialized
[ 40.829754] Bluetooth: RFCOMM ver 1.11
[ 42.477105] wlp3s0: authenticate with c4:3c:ea:eb:61:fc
[ 42.481985] wlp3s0: send auth to c4:3c:ea:eb:61:fc (try 1/3)
[ 42.483954] wlp3s0: authenticated
[ 42.486125] wlp3s0: associate with c4:3c:ea:eb:61:fc (try 1/3)
[ 42.487192] wlp3s0: RX AssocResp from c4:3c:ea:eb:61:fc (capab=0x411 status=0 aid=2)
[ 42.489000] wlp3s0: associated
[ 42.573474] wlp3s0: Limiting TX power to 30 (30 - 0) dBm as advertised by c4:3c:ea:eb:61:fc
[ 42.574426] IPv6: ADDRCONF(NETDEV_CHANGE): wlp3s0: link becomes ready
[ 50.174235] usb 3-2: new SuperSpeed Gen 1 USB device number 2 using xhci_hcd
[ 50.195309] usb 3-2: New USB device found, idVendor=0bc2, idProduct=61b5, bcdDevice= 7.10
[ 50.195315] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 50.195318] usb 3-2: Product: M3 Portable
[ 50.195321] usb 3-2: Manufacturer: Seagate
[ 50.195324] usb 3-2: SerialNumber: NM16H1L1
[ 50.780814] usbcore: registered new interface driver usb-storage
[ 50.786134] scsi host3: uas
[ 50.786257] usbcore: registered new interface driver uas
[ 50.787473] scsi 3:0:0:0: Direct-Access Seagate M3 Portable 0710 PQ: 0 ANSI: 6
[ 50.788235] sd 3:0:0:0: Attached scsi generic sg1 type 0
[ 54.320166] sd 3:0:0:0: [sdb] 3907029167 512-byte logical blocks: (2.00 TB/1.82 TiB)
[ 54.320169] sd 3:0:0:0: [sdb] 4096-byte physical blocks
[ 54.320327] sd 3:0:0:0: [sdb] Write Protect is off
[ 54.320329] sd 3:0:0:0: [sdb] Mode Sense: 53 00 00 08
[ 54.320624] sd 3:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 54.320880] sd 3:0:0:0: [sdb] Optimal transfer size 33553920 bytes not a multiple of physical block size (4096 bytes)
[ 54.669126] sdb: sdb1
[ 54.670963] sd 3:0:0:0: [sdb] Attached SCSI disk
[ 490.811778] show_signal: 18 callbacks suppressed
[ 490.811785] traps: ibus-ui-gtk3[4271] trap int3 ip:7f2de1f03295 sp:7ffef63fd970 error:0 in libglib-2.0.so.0.6400.6[7f2de1ec7000+84000]
[ 490.811981] traps: nm-applet[4318] trap int3 ip:7f1372350295 sp:7ffca08a7a30 error:0 in libglib-2.0.so.0.6400.6[7f1372314000+84000]
[ 490.831054] traps: blueman-tray[4411] trap int3 ip:7f86369ce295 sp:7ffd3c8efc10 error:0 in libglib-2.0.so.0.6400.6[7f8636992000+84000]
[ 498.318741] traps: nm-applet[39940] trap int3 ip:7f7e8724a295 sp:7fff7e6eb1d0 error:0 in libglib-2.0.so.0.6400.6[7f7e8720e000+84000]
systemd-analyze：
Startup finished in 35.657s (kernel) + 9.383s (userspace) = 45.041s
graphical.target reached after 9.031s in userspace
systemd-analyze blame：
6.800s NetworkManager-wait-online.service
1.405s vboxdrv.service
1.025s dev-sda5.device
727ms blueman-mechanism.service
500ms accounts-daemon.service
486ms udisks2.service
450ms systemd-logind.service
426ms apport-autoreport.service
328ms plymouth-read-write.service
303ms avahi-daemon.service
291ms NetworkManager.service
284ms networkd-dispatcher.service
269ms polkit.service
242ms apport.service
239ms upower.service
239ms systemd-tmpfiles-clean.service
237ms tlp.service
233ms ufw.service
225ms ModemManager.service
221ms lightdm.service
194ms plymouth-quit-wait.service
191ms grub-common.service
190ms alsa-restore.service
170ms systemd-resolved.service
168ms wpa_supplicant.service
143ms preload.service
142ms systemd-journal-flush.service
140ms lm-sensors.service
133ms systemd-udev-trigger.service
132ms systemd-udevd.service
128ms rsyslog.service
121ms systemd-journald.service
112ms keyboard-setup.service
109ms colord.service
105ms e2scrub_reap.service
104ms gpu-manager.service
102ms apparmor.service
97ms [email protected]
96ms systemd-timesyncd.service
92ms pppd-dns.service
88ms uwsgi.service
87ms ssh.service
73ms systemd-modules-load.service
68ms systemd-fsck@dev-disk-by\x2duuid-AC24\x2dA33D.service
46ms ubuntu-fan.service
46ms setvtrgb.service
45ms dev-disk-by\x2duuid-a77231a3\x2d8f96\x2d4fa4\x2d873e\x2d628b5c1e6c18.swap
44ms systemd-fsck@dev-disk-by\x2duuid-dea563d6\x2def07\x2d43c3\x2da181\x2dc1aa2d074447.service
42ms kerneloops.service
41ms systemd-tmpfiles-setup-dev.service
36ms systemd-sysusers.service
36ms systemd-random-seed.service
35ms systemd-sysctl.service
33ms systemd-tmpfiles-setup.service
32ms binfmt-support.service
31ms plymouth-start.service
24ms grub-initrd-fallback.service
23ms home.mount
22ms systemd-user-sessions.service
22ms bluetooth.service
20ms [email protected]
20ms systemd-backlight@leds:tpacpi::kbd_backlight.service
17ms dev-hugepages.mount
17ms systemd-remount-fs.service
16ms boot-efi.mount
16ms dev-mqueue.mount
15ms sys-kernel-debug.mount
15ms systemd-update-utmp.service
14ms sys-kernel-tracing.mount
14ms vboxweb-service.service
13ms console-setup.service
12ms proc-sys-fs-binfmt_misc.mount
12ms sys-fs-fuse-connections.mount
12ms systemd-update-utmp-runlevel.service
11ms sys-kernel-config.mount
10ms kmod-static-nodes.service
8ms openvpn.service
7ms systemd-backlight@backlight:intel_backlight.service
7ms rtkit-daemon.service
5ms vboxballoonctrl-service.service
2ms vboxautostart-service.service
到目前为止我已经尝试过这些：