ArchLinux の起動ログを理解する

どうやって Linux は立ち上がるのか


Posted on 2020年 3月 2日 (月)
Tags linux, os, archlinux
linux, os, archlinux

Linux の boot ログを眺める

Mac の VirtualBox に archlinux をインストールしてみた – Think Abstract にて ArchLinux をインストールしたが、このとき ESP の設定をした。

このとき、電源on -> POST -> UEFI -> GRUB -> archlinux というような順番で OS が起動する。

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[    0.000000] Linux version 5.4.15-arch1-1 (linux@archlinux) (gcc version 9.2.0 (GCC)) #1 SMP PREEMPT Sun, 26 Jan 2020 09:48:50 +0000

# initrd とは、initial ramdisk の略 (https://ja.wikipedia.org/wiki/Initrd)
# 一時的なルートファイルをメモリに読み込む
[    0.000000] Command line: initrd=\arch\boot\intel_ucode.img initrd=\arch\boot\amd_ucode.img initrd=\arch\boot\x86_64\archiso.img archisobasedir=arch archisolabel=ARCH_202002
[    0.000000] KERNEL supported cpus:
[    0.000000]   Intel GenuineIntel
[    0.000000]   AMD AuthenticAMD
[    0.000000]   Hygon HygonGenuine
[    0.000000]   Centaur CentaurHauls
[    0.000000]   zhaoxin   Shanghai
[    0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
# BIOS が利用できるメモリのアドレスを教えてくれる
[    0.000000] BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003e9d3fff] usable
[    0.000000] BIOS-e820: [mem 0x000000003e9d4000-0x000000003e9d4fff] ACPI data
[    0.000000] BIOS-e820: [mem 0x000000003e9d5000-0x000000003fed5fff] usable
[    0.000000] BIOS-e820: [mem 0x000000003fed6000-0x000000003ff2dfff] reserved
[    0.000000] BIOS-e820: [mem 0x000000003ff2e000-0x000000003ff35fff] ACPI data
[    0.000000] BIOS-e820: [mem 0x000000003ff36000-0x000000003ff39fff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x000000003ff3a000-0x000000003ffbffff] usable
[    0.000000] BIOS-e820: [mem 0x000000003ffc0000-0x000000003ffdffff] reserved
[    0.000000] BIOS-e820: [mem 0x000000003ffe0000-0x000000003ffeffff] usable
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] efi: EFI v2.40 by EDK II
[    0.000000] efi:  ACPI=0x3ff35000  ACPI 2.0=0x3ff35014  SMBIOS=0x3ff38000  MPS=0x3ff37000
[    0.000000] SMBIOS 2.5 present.
[    0.000000] DMI: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006

# KVM は virtual machine の一種
[    0.000000] Hypervisor detected: KVM
[    0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
[    0.000001] kvm-clock: cpu 0, msr 32401001, primary cpu clock
[    0.000001] kvm-clock: using sched offset of 112855430136 cycles
[    0.000004] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[    0.000007] tsc: Detected 3096.000 MHz processor
[    0.003501] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[    0.003504] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.003509] last_pfn = 0x3fff0 max_arch_pfn = 0x400000000
[    0.003520] MTRR default type: uncachable
[    0.003521] MTRR variable ranges disabled:
[    0.003523] Disabled
[    0.003524] x86/PAT: MTRRs disabled, skipping PAT initialization too.
[    0.003526] CPU MTRRs all blank - virtualized system.
[    0.003528] x86/PAT: Configuration [0-7]: WB  WT  UC- UC  WB  WT  UC- UC
[    0.003588] found SMP MP-table at [mem 0x0009fff0-0x0009ffff]
[    0.003604] check: Scanning 1 areas for low memory corruption
[    0.003632] BRK [0x32601000, 0x32601fff] PGTABLE
[    0.003633] BRK [0x32602000, 0x32602fff] PGTABLE
[    0.003634] BRK [0x32603000, 0x32603fff] PGTABLE
[    0.003651] BRK [0x32604000, 0x32604fff] PGTABLE
[    0.003708] BRK [0x32605000, 0x32605fff] PGTABLE
[    0.003732] BRK [0x32606000, 0x32606fff] PGTABLE
# UEFI で secure boot を有効にすることができる。secure boot により、認証された boot loader のみからしか OS を起動しないようにできる。ここではオフにしている
[    0.003766] Secure boot disabled
[    0.003767] RAMDISK: [mem 0x3c18b000-0x3e995fff]
[    0.003779] ACPI: Early table checksum verification disabled
[    0.003783] ACPI: RSDP 0x000000003FF35014 000024 (v02 VBOX  )
[    0.003786] ACPI: XSDT 0x000000003FF340E8 000044 (v01 VBOX   VBOXFACP 00000001      01000013)
[    0.003792] ACPI: FACP 0x000000003FF32000 0000F4 (v04 VBOX   VBOXFACP 00000001 ASL  00000061)
[    0.003797] ACPI: DSDT 0x000000003FF2F000 0022EA (v02 VBOX   VBOXBIOS 00000002 INTL 20100528)
[    0.003801] ACPI: FACS 0x000000003FF39000 000040
[    0.003804] ACPI: FACS 0x000000003FFF0200 000040
[    0.003807] ACPI: APIC 0x000000003FF33000 000054 (v02 VBOX   VBOXAPIC 00000001 ASL  00000061)
[    0.003810] ACPI: SSDT 0x000000003FF2E000 0001CC (v01 VBOX   VBOXCPUT 00000002 INTL 20100528)
[    0.003813] ACPI: BGRT 0x000000003E9D4000 000038 (v01 INTEL  EDK2     00000002      01000013)
[    0.003822] ACPI: Local APIC address 0xfee00000
[    0.004071] No NUMA configuration found
[    0.004072] Faking a node at [mem 0x0000000000000000-0x000000003ffeffff]
[    0.004075] NODE_DATA(0) allocated [mem 0x3ffec000-0x3ffeffff]
[    0.004089] Zone ranges:
[    0.004090]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.004091]   DMA32    [mem 0x0000000001000000-0x000000003ffeffff]
[    0.004092]   Normal   empty
[    0.004093]   Device   empty
[    0.004094] Movable zone start for each node
[    0.004094] Early memory node ranges
[    0.004095]   node   0: [mem 0x0000000000001000-0x000000000009ffff]
[    0.004096]   node   0: [mem 0x0000000000100000-0x000000003e9d3fff]
[    0.004096]   node   0: [mem 0x000000003e9d5000-0x000000003fed5fff]
[    0.004097]   node   0: [mem 0x000000003ff3a000-0x000000003ffbffff]
[    0.004097]   node   0: [mem 0x000000003ffe0000-0x000000003ffeffff]
[    0.004100] Zeroed struct page in unavailable ranges: 230 pages
[    0.004101] Initmem setup node 0 [mem 0x0000000000001000-0x000000003ffeffff]
[    0.004102] On node 0 totalpages: 261898
[    0.004103]   DMA zone: 64 pages used for memmap
[    0.004104]   DMA zone: 22 pages reserved
[    0.004105]   DMA zone: 3999 pages, LIFO batch:0
[    0.004142]   DMA32 zone: 4032 pages used for memmap
[    0.004143]   DMA32 zone: 257899 pages, LIFO batch:63
[    0.007017] ACPI: PM-Timer IO Port: 0x4008
[    0.007020] ACPI: Local APIC address 0xfee00000
[    0.007071] IOAPIC[0]: apic_id 1, version 32, address 0xfec00000, GSI 0-23
[    0.007074] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.007075] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
[    0.007077] ACPI: IRQ0 used by override.
[    0.007077] ACPI: IRQ9 used by override.
[    0.007080] Using ACPI (MADT) for SMP configuration information
[    0.007086] e820: update [mem 0x3eff9000-0x3f013fff] usable ==> reserved
[    0.007096] smpboot: Allowing 1 CPUs, 0 hotplug CPUs
[    0.007114] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[    0.007115] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff]
[    0.007116] PM: Registered nosave memory: [mem 0x3e9d4000-0x3e9d4fff]
[    0.007117] PM: Registered nosave memory: [mem 0x3eff9000-0x3f013fff]
[    0.007118] PM: Registered nosave memory: [mem 0x3fed6000-0x3ff2dfff]
[    0.007118] PM: Registered nosave memory: [mem 0x3ff2e000-0x3ff35fff]
[    0.007118] PM: Registered nosave memory: [mem 0x3ff36000-0x3ff39fff]
[    0.007119] PM: Registered nosave memory: [mem 0x3ffc0000-0x3ffdffff]
[    0.007121] [mem 0x3fff0000-0xffffffff] available for PCI devices
# カーネルの起動
[    0.007122] Booting paravirtualized kernel on KVM
[    0.007124] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6370452778343963 ns
[    0.082366] setup_percpu: NR_CPUS:320 nr_cpumask_bits:320 nr_cpu_ids:1 nr_node_ids:1
[    0.082457] percpu: Embedded 54 pages/cpu s184320 r8192 d28672 u2097152
[    0.082461] pcpu-alloc: s184320 r8192 d28672 u2097152 alloc=1*2097152
[    0.082462] pcpu-alloc: [0] 0
[    0.082483] Built 1 zonelists, mobility grouping on.  Total pages: 257780
[    0.082483] Policy zone: DMA32
[    0.082485] Kernel command line: initrd=\arch\boot\intel_ucode.img initrd=\arch\boot\amd_ucode.img initrd=\arch\boot\x86_64\archiso.img archisobasedir=arch archisolabel=ARCH_202002
# Dentry はファイル名を管理する cache の仕組み
[    0.082590] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[    0.082612] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
[    0.082647] mem auto-init: stack:byref_all, heap alloc:on, heap free:off
[    0.082649] Calgary: detecting Calgary via BIOS EBDA area
[    0.082650] Calgary: Unable to locate Rio Grande table in EBDA - bailing!
[    0.084478] Memory: 930124K/1047592K available (12291K kernel code, 1328K rwdata, 4036K rodata, 1660K init, 3436K bss, 117468K reserved, 0K cma-reserved)
[    0.084604] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.084654] Kernel/User page tables isolation: enabled
[    0.084670] ftrace: allocating 38426 entries in 151 pages
[    0.097814] rcu: Preemptible hierarchical RCU implementation.
[    0.097815] rcu:     RCU dyntick-idle grace-period acceleration is enabled.
[    0.097816] rcu:     RCU restricting CPUs from NR_CPUS=320 to nr_cpu_ids=1.
[    0.097816] rcu:     RCU priority boosting: priority 1 delay 500 ms.
[    0.097817]  Tasks RCU enabled.
[    0.097818] rcu: RCU calculated value of scheduler-enlistment delay is 30 jiffies.
[    0.097818] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[    0.099721] NR_IRQS: 20736, nr_irqs: 256, preallocated irqs: 16
[    0.099966] random: get_random_bytes called from start_kernel+0x390/0x56b with crng_init=0
[    0.099983] Console: colour dummy device 80x25
[    0.099985] printk: console [tty0] enabled
[    0.099997] ACPI: Core revision 20190816
[    0.100096] APIC: Switch to symmetric I/O mode setup
[    0.100293] x2apic enabled
[    0.100478] Switched APIC routing to physical x2apic.
[    0.101477] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.101496] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x2ca08564bf3, max_idle_ns: 440795312460 ns
[    0.101500] Calibrating delay loop (skipped) preset value.. 6194.00 BogoMIPS (lpj=10320000)
[    0.101502] pid_max: default: 32768 minimum: 301
[    0.104971] LSM: Security Framework initializing
[    0.104974] Yama: becoming mindful.
[    0.104988] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.104990] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.105000] *** VALIDATE tmpfs ***
[    0.105098] *** VALIDATE proc ***
[    0.105132] *** VALIDATE cgroup1 ***
[    0.105133] *** VALIDATE cgroup2 ***
[    0.105238] process: using mwait in idle threads
[    0.105242] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8
[    0.105242] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4
[    0.105245] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
[    0.105246] Spectre V2 : Mitigation: Full generic retpoline
[    0.105246] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
[    0.105247] Speculative Store Bypass: Vulnerable
[    0.105249] MDS: Mitigation: Clear CPU buffers
[    0.109729] Freeing SMP alternatives memory: 32K
[    0.218164] smpboot: CPU0: Intel(R) Core(TM) i5-7267U CPU @ 3.10GHz (family: 0x6, model: 0x8e, stepping: 0x9)
[    0.234851] Performance Events: unsupported p6 CPU model 142 no PMU driver, software events only.
[    0.241715] rcu: Hierarchical SRCU implementation.
[    0.261539] NMI watchdog: Perf NMI watchdog permanently disabled
[    0.271512] smp: Bringing up secondary CPUs ...
[    0.271515] smp: Brought up 1 node, 1 CPU
[    0.271516] smpboot: Max logical packages: 1
[    0.271518] smpboot: Total of 1 processors activated (6194.00 BogoMIPS)
[    0.271702] devtmpfs: initialized
[    0.271759] x86/mm: Memory block size: 128MB
[    0.274881] PM: Registering ACPI NVS region [mem 0x3ff36000-0x3ff39fff] (16384 bytes)
[    0.275008] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6370867519511994 ns
[    0.275014] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
[    0.275062] pinctrl core: initialized pinctrl subsystem
[    0.275175] PM: RTC time: 14:44:12, date: 2020-03-02
[    0.275295] NET: Registered protocol family 16
[    0.275379] audit: initializing netlink subsys (disabled)
[    0.275525] cpuidle: using governor ladder
[    0.275529] cpuidle: using governor menu
[    0.275579] ACPI: bus type PCI registered
[    0.275581] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.275744] PCI: Using configuration type 1 for base access
[    0.276987] audit: type=2000 audit(1583160366.123:1): state=initialized audit_enabled=0 res=1
[    0.278334] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.291752] ACPI: Added _OSI(Module Device)
[    0.291754] ACPI: Added _OSI(Processor Device)
[    0.291755] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.291757] ACPI: Added _OSI(Processor Aggregator Device)
[    0.291759] ACPI: Added _OSI(Linux-Dell-Video)
[    0.291761] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[    0.291762] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
[    0.296186] ACPI: 2 ACPI AML tables successfully acquired and loaded
[    0.299337] ACPI: Interpreter enabled
[    0.299352] ACPI: (supports S0 S5)
[    0.299354] ACPI: Using IOAPIC for interrupt routing
[    0.299686] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[    0.299964] ACPI: Enabled 2 GPEs in block 00 to 07
[    0.305206] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[    0.305212] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3]
[    0.305597] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI]
[    0.305604] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
[    0.305980] PCI host bridge to bus 0000:00
[    0.305982] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7 window]
[    0.305983] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff window]
[    0.305984] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[    0.305985] pci_bus 0000:00: root bus resource [mem 0x40000000-0xfdffffff window]
[    0.305986] pci_bus 0000:00: root bus resource [bus 00-ff]
[    0.306035] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000
[    0.306979] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100
[    0.307835] pci 0000:00:01.1: [8086:7111] type 00 class 0x01018a
[    0.308435] pci 0000:00:01.1: reg 0x20: [io  0xc180-0xc18f]
[    0.308671] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io  0x01f0-0x01f7]
[    0.308672] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io  0x03f6]
[    0.308673] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io  0x0170-0x0177]
[    0.308673] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io  0x0376]
[    0.309190] pci 0000:00:02.0: [15ad:0405] type 00 class 0x030000
[    0.309982] pci 0000:00:02.0: reg 0x10: [io  0xc170-0xc17f]
[    0.310674] pci 0000:00:02.0: reg 0x14: [mem 0x80000000-0x80ffffff]
[    0.311315] pci 0000:00:02.0: reg 0x18: [mem 0x81400000-0x815fffff]
[    0.313525] pci 0000:00:02.0: BAR 1: assigned to efifb
[    0.314208] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000
[    0.314758] pci 0000:00:03.0: reg 0x10: [mem 0x81600000-0x8161ffff]
[    0.315672] pci 0000:00:03.0: reg 0x18: [io  0xc1a0-0xc1a7]
[    0.318114] pci 0000:00:04.0: [80ee:cafe] type 00 class 0x088000
[    0.318629] pci 0000:00:04.0: reg 0x10: [io  0xc140-0xc15f]
[    0.319028] pci 0000:00:04.0: reg 0x14: [mem 0x81000000-0x813fffff]
[    0.319434] pci 0000:00:04.0: reg 0x18: [mem 0x81620000-0x81623fff pref]
[    0.321511] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100
[    0.321695] pci 0000:00:05.0: reg 0x10: [io  0xc000-0xc0ff]
[    0.321796] pci 0000:00:05.0: reg 0x14: [io  0xc100-0xc13f]
[    0.322849] pci 0000:00:06.0: [106b:003f] type 00 class 0x0c0310
[    0.323339] pci 0000:00:06.0: reg 0x10: [mem 0x81626000-0x81626fff]
[    0.326234] pci 0000:00:07.0: [8086:7113] type 00 class 0x068000
[    0.327117] pci 0000:00:07.0: quirk: [io  0x4000-0x403f] claimed by PIIX4 ACPI
[    0.327130] pci 0000:00:07.0: quirk: [io  0x4100-0x410f] claimed by PIIX4 SMB
[    0.328242] pci 0000:00:0d.0: [8086:2829] type 00 class 0x010601
[    0.328886] pci 0000:00:0d.0: reg 0x10: [io  0xc198-0xc19f]
[    0.329374] pci 0000:00:0d.0: reg 0x14: [io  0xc1ac-0xc1af]
[    0.329846] pci 0000:00:0d.0: reg 0x18: [io  0xc190-0xc197]
[    0.330270] pci 0000:00:0d.0: reg 0x1c: [io  0xc1a8-0xc1ab]
[    0.331917] pci 0000:00:0d.0: reg 0x20: [io  0xc160-0xc16f]
[    0.332327] pci 0000:00:0d.0: reg 0x24: [mem 0x81624000-0x81625fff]
[    0.339488] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 9 10 *11)
[    0.339742] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 9 10 *11)
[    0.339848] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 9 *10 11)
[    0.339953] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 9 *10 11)
[    0.340138] iommu: Default domain type: Translated
[    0.340188] pci 0000:00:02.0: vgaarb: setting as boot VGA device
[    0.340190] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[    0.340192] pci 0000:00:02.0: vgaarb: bridge control possible
[    0.340192] vgaarb: loaded
[    0.340324] ACPI: bus type USB registered
[    0.340333] usbcore: registered new interface driver usbfs
[    0.340337] usbcore: registered new interface driver hub
[    0.340345] usbcore: registered new device driver usb
[    0.340358] pps_core: LinuxPPS API ver. 1 registered
[    0.340358] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.340360] PTP clock support registered
[    0.340367] EDAC MC: Ver: 3.0.0
[    0.341557] Registered efivars operations
[    0.344898] PCI: Using ACPI for IRQ routing
[    0.344901] PCI: pci_cache_line_size set to 64 bytes
[    0.345241] e820: reserve RAM buffer [mem 0x3e9d4000-0x3fffffff]
[    0.345246] e820: reserve RAM buffer [mem 0x3eff9000-0x3fffffff]
[    0.345248] e820: reserve RAM buffer [mem 0x3fed6000-0x3fffffff]
[    0.345249] e820: reserve RAM buffer [mem 0x3ffc0000-0x3fffffff]
[    0.345249] e820: reserve RAM buffer [mem 0x3fff0000-0x3fffffff]
[    0.345408] NetLabel: Initializing
[    0.345409] NetLabel:  domain hash size = 128
[    0.345409] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.345476] NetLabel:  unlabeled traffic allowed by default
[    0.346194] clocksource: Switched to clocksource kvm-clock
[    0.353906] *** VALIDATE bpf ***
[    0.353952] VFS: Disk quotas dquot_6.6.0
[    0.353963] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.353982] *** VALIDATE ramfs ***
[    0.353984] *** VALIDATE hugetlbfs ***
[    0.354017] pnp: PnP ACPI init
[    0.354079] pnp 00:00: Plug and Play ACPI device, IDs PNP0303 (active)
[    0.354151] pnp 00:01: Plug and Play ACPI device, IDs PNP0f03 (active)
[    0.355081] pnp: PnP ACPI: found 2 devices
[    0.355861] thermal_sys: Registered thermal governor 'fair_share'
[    0.355862] thermal_sys: Registered thermal governor 'bang_bang'
[    0.355862] thermal_sys: Registered thermal governor 'step_wise'
[    0.355863] thermal_sys: Registered thermal governor 'user_space'
[    0.355863] thermal_sys: Registered thermal governor 'power_allocator'
[    0.360402] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[    0.360433] pci_bus 0000:00: resource 4 [io  0x0000-0x0cf7 window]
[    0.360434] pci_bus 0000:00: resource 5 [io  0x0d00-0xffff window]
[    0.360435] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
[    0.360436] pci_bus 0000:00: resource 7 [mem 0x40000000-0xfdffffff window]
[    0.360478] NET: Registered protocol family 2
[    0.360587] tcp_listen_portaddr_hash hash table entries: 512 (order: 1, 8192 bytes, linear)
[    0.360594] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.360610] TCP bind hash table entries: 8192 (order: 5, 131072 bytes, linear)
[    0.360617] TCP: Hash tables configured (established 8192 bind 8192)
[    0.360637] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.360640] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.360689] NET: Registered protocol family 1
[    0.360695] NET: Registered protocol family 44
[    0.360721] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[    0.360736] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[    0.360796] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[    0.361922] PCI: CLS 0 bytes, default 64
# initramfs は初期化用の一時的なルートファイルシステム
[    0.361954] Trying to unpack rootfs image as initramfs...

# initrd が利用していたメモリを開放する
[    3.658224] Freeing initrd memory: 41004K
[    3.658224] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x2ca08564bf3, max_idle_ns: 440795312460 ns
[    3.658224] clocksource: Switched to clocksource tsc
[    3.658224] platform rtc_cmos: registered platform RTC device (no PNP device found)
[    3.658224] check: Scanning for low memory corruption every 60 seconds
[    3.658224] Initialise system trusted keyrings
[    3.658224] Key type blacklist registered
[    3.658224] workingset: timestamp_bits=41 max_order=18 bucket_order=0
[    3.660854] zbud: loaded
[    3.664448] Key type asymmetric registered
[    3.664449] Asymmetric key parser 'x509' registered
[    3.664460] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[    3.667967] io scheduler mq-deadline registered
[    3.667969] io scheduler kyber registered
[    3.668164] io scheduler bfq registered
[    3.668339] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[    3.668419] efifb: probing for efifb
[    3.668438] efifb: framebuffer at 0x80000000, using 3072k, total 3072k
[    3.668439] efifb: mode is 1024x768x32, linelength=4096, pages=1
[    3.668440] efifb: scrolling: redraw
[    3.668441] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0
[    3.668488] fbcon: Deferring console take-over
[    3.668489] fb0: EFI VGA frame buffer device
[    3.668534] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[    3.668563] ACPI: Power Button [PWRF]
[    3.668722] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1
[    3.668735] ACPI: Sleep Button [SLPF]
[    3.668879] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[    3.668924] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/LNXVIDEO:00/input/input2
[    3.672840] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    3.673187] AMD-Vi: AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
[    3.673188] AMD-Vi: AMD IOMMUv2 functionality not available on this system
[    3.684942] usbcore: registered new interface driver usbserial_generic
[    3.684946] usbserial: USB Serial support registered for generic
[    3.685385] rtc_cmos rtc_cmos: registered as rtc0
[    3.685412] rtc_cmos rtc_cmos: alarms up to one day, 114 bytes nvram
[    3.685458] intel_pstate: CPU model not supported
[    3.685473] ledtrig-cpu: registered to indicate activity on CPUs
[    3.685612] intel_pmc_core intel_pmc_core.0:  initialized
[    3.685644] drop_monitor: Initializing network drop monitor service
[    3.685807] NET: Registered protocol family 10
[    3.696159] Segment Routing with IPv6
[    3.696183] NET: Registered protocol family 17
[    3.700165] RAS: Correctable Errors collector initialized.
[    3.700173] IPI shorthand broadcast: enabled
[    3.700181] sched_clock: Marking stable (3698402958, 1573042)->(3704224564, -4248564)
[    3.700277] registered taskstats version 1
[    3.700289] Loading compiled-in X.509 certificates
[    3.704577] Loaded X.509 cert 'Build time autogenerated kernel key: 3cf0b654b73931380a3e0a87e03f0eddf6fd487a'
[    3.704597] zswap: loaded using pool lzo/zbud
[    3.708065] Key type ._fscrypt registered
[    3.708067] Key type .fscrypt registered
[    3.714413] Key type big_key registered
[    3.715619] PM:   Magic number: 12:299:737
[    3.715682] rtc_cmos rtc_cmos: setting system clock to 2020-03-02T14:44:15 UTC (1583160255)
[    3.719957] Freeing unused decrypted memory: 2040K
[    3.720150] Freeing unused kernel image memory: 1660K
[    3.735345] Write protecting the kernel read-only data: 18432k
[    3.735847] Freeing unused kernel image memory: 2012K
[    3.735900] Freeing unused kernel image memory: 60K
[    3.745293] x86/mm: Checked W+X mappings: passed, no W+X pages found.
[    3.745295] x86/mm: Checking user space page tables
[    3.753974] x86/mm: Checked W+X mappings: passed, no W+X pages found.

# /init は最初のプロセスで、これは終了しない
[    3.753977] Run /init as init process
[    3.793435] fbcon: Taking over console
[    3.793540] Console: switching to colour frame buffer device 128x48
[    3.879389] battery: ACPI: Battery Slot [BAT0] (battery present)
[    3.884057] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f03:PS2M] at 0x60,0x64 irq 1,12
[    3.884474] serio: i8042 KBD port at 0x60,0x64 irq 1
[    3.886635] Linux agpgart interface v0.103
[    3.891721] serio: i8042 AUX port at 0x60,0x64 irq 12
[    3.895937] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[    3.895938] e1000: Copyright (c) 1999-2006 Intel Corporation.
[    3.904124] SCSI subsystem initialized
[    3.906724] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    3.917751] cryptd: max_cpu_qlen set to 1000
[    3.923334] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    3.923335] Warning! ehci_hcd should always be loaded before uhci_hcd and ohci_hcd, not after
[    3.925774] ehci-pci: EHCI PCI platform driver
[    3.927640] ohci-pci: OHCI PCI platform driver
[    3.930718] AVX2 version of gcm_enc/dec engaged.
[    3.930718] AES CTR mode by8 optimization enabled
[    3.934047] ohci-pci 0000:00:06.0: OHCI PCI host controller
[    3.934053] ohci-pci 0000:00:06.0: new USB bus registered, assigned bus number 1
[    3.934116] ohci-pci 0000:00:06.0: irq 22, io mem 0x81626000
[    3.936928] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input3
[    3.938397] libata version 3.00 loaded.
[    3.939281] ata_piix 0000:00:01.1: version 2.13
[    3.943843] ahci 0000:00:0d.0: version 3.0
[    3.944491] ahci 0000:00:0d.0: SSS flag set, parallel bus scan disabled
[    3.944619] ahci 0000:00:0d.0: AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
[    3.944620] ahci 0000:00:0d.0: flags: 64bit ncq stag only ccc
[    3.946041] scsi host0: ata_piix
[    3.954982] scsi host2: ata_piix
[    3.955032] ata1: PATA max UDMA/33 cmd 0x1f0 ctl 0x3f6 bmdma 0xc180 irq 14
[    3.955033] ata2: PATA max UDMA/33 cmd 0x170 ctl 0x376 bmdma 0xc188 irq 15
[    3.958861] scsi host1: ahci
[    3.958978] ata3: SATA max UDMA/133 abar m8192@0x81624000 port 0x81624100 irq 21
[    3.992086] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 5.04
[    3.992088] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.992089] usb usb1: Product: OHCI PCI host controller
[    3.992090] usb usb1: Manufacturer: Linux 5.4.15-arch1-1 ohci_hcd
[    3.992090] usb usb1: SerialNumber: 0000:00:06.0
[    3.995181] hub 1-0:1.0: USB hub found
[    3.995198] hub 1-0:1.0: 12 ports detected
[    4.118441] ata2.00: ATAPI: VBOX CD-ROM, 1.0, max UDMA/133
[    4.119253] scsi 2:0:0:0: CD-ROM            VBOX     CD-ROM           1.0  PQ: 0 ANSI: 5
[    4.282097] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    4.282253] ata3.00: ATA-6: VBOX HARDDISK, 1.0, max UDMA/133
[    4.282255] ata3.00: 16777216 sectors, multi 128: LBA48 NCQ (depth 32)
[    4.282443] ata3.00: configured for UDMA/133
[    4.282529] scsi 1:0:0:0: Direct-Access     ATA      VBOX HARDDISK    1.0  PQ: 0 ANSI: 5
[    4.290495] sd 1:0:0:0: [sda] 16777216 512-byte logical blocks: (8.59 GB/8.00 GiB)
[    4.290501] sd 1:0:0:0: [sda] Write Protect is off
[    4.290502] sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    4.290509] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    4.291888] sr 2:0:0:0: [sr0] scsi3-mmc drive: 32x/32x xa/form2 tray
[    4.291889] cdrom: Uniform CD-ROM driver Revision: 3.20
[    4.307076] sr 2:0:0:0: Attached scsi CD-ROM sr0
[    4.308778]  sda: sda1 sda2 sda3
[    4.309133] sd 1:0:0:0: [sda] Attached SCSI disk
[    4.349789] e1000 0000:00:03.0 eth0: (PCI:33MHz:32-bit) 08:00:27:00:26:3f
[    4.349793] e1000 0000:00:03.0 eth0: Intel(R) PRO/1000 Network Connection
[    4.425562] usb 1-1: new full-speed USB device number 2 using ohci-pci
[    4.433023] random: fast init done
[    4.714612] usb 1-1: New USB device found, idVendor=80ee, idProduct=0021, bcdDevice= 1.00
[    4.714614] usb 1-1: New USB device strings: Mfr=1, Product=3, SerialNumber=0
[    4.714616] usb 1-1: Product: USB Tablet
[    4.714617] usb 1-1: Manufacturer: VirtualBox
[    4.722157] hidraw: raw HID events driver (C) Jiri Kosina
[    4.731880] usbcore: registered new interface driver usbhid
[    4.731882] usbhid: USB HID core driver
[    4.734517] input: VirtualBox USB Tablet as /devices/pci0000:00/0000:00:06.0/usb1/1-1/1-1:1.0/0003:80EE:0021.0001/input/input5
[    4.734638] hid-generic 0003:80EE:0021.0001: input,hidraw0: USB HID v1.10 Mouse [VirtualBox USB Tablet] on usb-0000:00:06.0-1/input0
[    5.766668] ISO 9660 Extensions: RRIP_1991A
[    6.039812] loop: module loaded
[    6.172628] squashfs: version 4.0 (2009/01/31) Phillip Lougher

# いよいよ systemd が起動。昔は initd だったが、最近の OS は systemd がプロセスの起動やセットアップを実施する
[    7.083999] systemd[1]: systemd 244.1-1-arch 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)
[    7.084028] systemd[1]: Detected virtualization oracle.
[    7.084031] systemd[1]: Detected architecture x86-64.

# hostname の設定
[    7.092268] systemd[1]: Set hostname to <archiso>.
[    7.092970] systemd[1]: Initializing machine ID from random generator.
[    7.459643] systemd[1]: Created slice system-getty.slice.
[    7.459919] systemd[1]: Created slice User and Session Slice.
[    7.460040] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    7.460153] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[    7.460372] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    7.460463] systemd[1]: Reached target Local Encrypted Volumes.
[    7.460686] systemd[1]: Reached target Paths.
[    7.460764] systemd[1]: Reached target Remote File Systems.
[    7.460837] systemd[1]: Reached target Slices.
[    7.460912] systemd[1]: Reached target Swap.
[    7.461024] systemd[1]: Listening on Device-mapper event daemon FIFOs.
[    7.462200] systemd[1]: Listening on LVM2 metadata daemon socket.
[    7.462385] systemd[1]: Listening on LVM2 poll daemon socket.
[    7.464182] systemd[1]: Listening on Process Core Dump Socket.
[    7.464302] systemd[1]: Listening on initctl Compatibility Named Pipe.
[    7.464494] systemd[1]: Listening on Journal Audit Socket.
[    7.464632] systemd[1]: Listening on Journal Socket (/dev/log).
[    7.464779] systemd[1]: Listening on Journal Socket.
[    7.465095] systemd[1]: Listening on udev Control Socket.
[    7.465274] systemd[1]: Listening on udev Kernel Socket.

# 各種 mount が実施される
[    7.466144] systemd[1]: Mounting Huge Pages File System...
[    7.467071] systemd[1]: Mounting POSIX Message Queue File System...
[    7.468451] systemd[1]: Mounting Kernel Debug File System...
[    7.471487] systemd[1]: Mounting Temporary Directory (/tmp)...
[    7.476941] systemd[1]: Starting Create list of static device nodes for the current kernel...
[    7.491788] systemd[1]: Starting Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling...
[    7.504336] systemd[1]: Condition check resulted in Set Up Additional Binary Formats being skipped.
[    7.513036] systemd[1]: Starting Load Kernel Modules...
[    7.537535] systemd[1]: Starting Remount Root and Kernel File Systems...


# udev はデバイス管理を行う (userspace /dev の略。その名の通り、/dev 配下、/dev/sda などはこれが管理)
[    7.556087] systemd[1]: Starting udev Coldplug all Devices...
[    7.572898] systemd[1]: Mounted Huge Pages File System.
[    7.574734] systemd[1]: Mounted POSIX Message Queue File System.
[    7.575285] systemd[1]: Mounted Kernel Debug File System.
[    7.575721] systemd[1]: Mounted Temporary Directory (/tmp).
[    7.576431] systemd[1]: Started Create list of static device nodes for the current kernel.
[    7.577190] systemd[1]: Started Remount Root and Kernel File Systems.
[    7.577669] systemd[1]: Condition check resulted in First Boot Wizard being skipped.
[    7.589331] Asymmetric key parser 'pkcs8' registered
[    7.592556] systemd[1]: Condition check resulted in Rebuild Hardware Database being skipped.
[    7.593523] systemd[1]: Starting Load/Save Random Seed...
[    7.616836] systemd[1]: Starting Create System Users...
[    7.625397] systemd[1]: Started Load Kernel Modules.
[    7.635720] systemd[1]: Condition check resulted in FUSE Control File System being skipped.
[    7.638463] systemd[1]: Mounting Kernel Configuration File System...
[    7.645504] systemd[1]: Starting Apply Kernel Variables...
[    7.676085] systemd[1]: Mounted Kernel Configuration File System.
[    7.701947] systemd[1]: Started Create System Users.
[    7.704684] systemd[1]: Starting Create Static Device Nodes in /dev...
[    7.723203] systemd[1]: Started Apply Kernel Variables.
[    7.769186] systemd[1]: Started Create Static Device Nodes in /dev.
[    7.771890] systemd[1]: Started Entropy Daemon based on the HAVEGE algorithm.
[    7.785227] systemd[1]: Starting Journal Service...
[    7.798544] systemd[1]: Starting udev Kernel Device Manager...
[    7.815455] systemd[1]: Started udev Coldplug all Devices.
[    7.817918] random: lvm: uninitialized urandom read (4 bytes read)
[    7.830517] systemd[1]: Started LVM2 metadata daemon.
[    8.375827] random: crng init done
[    8.376183] systemd[1]: Started Load/Save Random Seed.

# journald によって、systemd 管理化の service のログなどが取得される
[    8.425210] systemd[1]: Started Journal Service.
[    8.426987] audit: type=1130 audit(1583160260.206:2): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-journald comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    8.481864] systemd-journald[290]: Received client request to flush runtime journal.
[    8.487385] audit: type=1130 audit(1583160260.266:3): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-journal-flush comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    8.491963] audit: type=1130 audit(1583160260.270:4): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-udevd comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    8.704140] piix4_smbus 0000:00:07.0: SMBus Host Controller at 0x4100, revision 0
[    8.755818] ACPI: AC Adapter [AC] (off-line)
[    8.759259] vboxguest: host-version: 6.0.16r135674 0x8000000f
[    8.768166] vbg_heartbeat_init: Setting up heartbeat to trigger every 2000 milliseconds
[    8.784801] input: VirtualBox mouse integration as /devices/pci0000:00/0000:00:04.0/input/input6
[    8.786033] vboxguest: misc device minor 59, IRQ 20, I/O port c140, MMIO at 0x0000000081000000 (size 0x0000000000400000)
[    8.819112] e1000 0000:00:03.0 enp0s3: renamed from eth0
[    8.865216] input: PC Speaker as /devices/platform/pcspkr/input/input7
[    8.901691] mousedev: PS/2 mouse device common for all mice
[    8.996926] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer
[    9.099153] audit: type=1130 audit(1583160260.883:5): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=lvm2-monitor comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    9.167743] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input8
[    9.190056] audit: type=1130 audit(1583160260.973:6): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-setup comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    9.235909] audit: type=1127 audit(1583160261.016:7): pid=322 uid=0 auid=4294967295 ses=4294967295 msg=' comm="systemd-update-utmp" exe="/usr/lib/systemd/systemd-update-utmp" hostname=? addr=? terminal=? res=success'
[    9.245067] audit: type=1130 audit(1583160261.026:8): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-update-utmp comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    9.296895] audit: type=1130 audit(1583160261.076:9): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-journal-catalog-update comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    9.585300] [drm] DMA map mode: Caching DMA mappings.
[    9.585880] [drm] Capabilities:
[    9.585882] [drm]   Cursor.
[    9.585882] [drm]   Cursor bypass 2.
[    9.585882] [drm]   Alpha cursor.
[    9.585883] [drm]   3D.
[    9.585883] [drm]   Extended Fifo.
[    9.585883] [drm]   Pitchlock.
[    9.585883] [drm]   Irq mask.
[    9.585884] [drm]   GMR.
[    9.585884] [drm]   Traces.
[    9.585884] [drm]   GMR2.
[    9.585885] [drm]   Screen Object 2.
[    9.585887] [drm] Max GMR ids is 8192
[    9.585888] [drm] Max number of GMR pages is 1048576
[    9.585888] [drm] Max dedicated hypervisor surface memory is 507904 kiB
[    9.585889] [drm] Maximum display memory size is 16384 kiB
[    9.585890] [drm] VRAM at 0x80000000 size is 16384 kiB
[    9.585890] [drm] MMIO at 0x81400000 size is 2048 kiB
[    9.585922] vmwgfx 0000:00:02.0: BAR 1: can't reserve [mem 0x80000000-0x80ffffff]
[    9.585923] [drm] It appears like vesafb is loaded. Ignore above error if any.
[    9.645095] [TTM] Zone  kernel: Available graphics memory: 503134 KiB
[    9.645096] [TTM] Initializing pool allocator
[    9.645100] [TTM] Initializing DMA pool allocator
[    9.645121] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    9.645121] [drm] No driver support for vblank timestamp query.
[    9.645339] [drm] Screen Objects Display Unit initialized
[    9.646008] [drm] width 1024
[    9.646031] [drm] height 768
[    9.646044] [drm] bpp 32
[    9.646714] [drm] Fifo max 0x00200000 min 0x00001000 cap 0x00000355
[    9.646727] [drm] DX: no.
[    9.646728] [drm] Atomic: yes.
[    9.646728] [drm] SM4_1: no.
[    9.646747] [drm:vmw_host_log [vmwgfx]] *ERROR* Failed to send host log message.
[    9.651170] [drm:vmw_host_log [vmwgfx]] *ERROR* Failed to send host log message.
[    9.681887] checking generic (80000000 300000) vs hw (80000000 1000000)
[    9.681889] fb0: switching to svgadrmfb from EFI VGA
[    9.682251] Console: switching to colour dummy device 80x25
[    9.682450] fbcon: svgadrmfb (fb0) is primary device
[    9.683511] Console: switching to colour frame buffer device 128x48
[    9.694666] [drm] Initialized vmwgfx 2.15.0 20180704 for 0000:00:02.0 on minor 0
[   11.356244] snd_intel8x0 0000:00:05.0: white list rate for 1028:0177 is 48000
[   12.761925] audit: type=1130 audit(1583160264.540:10): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=ldconfig comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   12.774965] audit: type=1130 audit(1583160264.550:11): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-update-done comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   12.962007] 8021q: 802.1Q VLAN Support v1.8
[   13.153167] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[   13.200003] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[   13.291751] 8021q: adding VLAN 0 to HW filter on device enp0s3
[   13.295472] e1000: enp0s3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[   13.295733] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s3: link becomes ready
[   13.838443] kauditd_printk_skb: 1 callbacks suppressed
[   13.838444] audit: type=1130 audit(1583160265.616:13): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-logind comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.428357] audit: type=1130 audit(1583160270.206:14): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=dhcpcd@enp0s3 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.452787] audit: type=1130 audit(1583160270.233:15): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-user-sessions comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.453525] audit: type=1130 audit(1583160270.233:16): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=getty@tty1 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   20.812329] audit: type=1130 audit(1583160272.590:17): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=pacman-init comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   20.886727] audit: type=1101 audit(1583160272.666:18): pid=515 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:accounting grantors=pam_tally2,pam_access,pam_unix,pam_permit,pam_time acct="root" exe="/usr/bin/login" hostname=archiso addr=? terminal=tty1 res=success'
[   20.890242] audit: type=1103 audit(1583160272.670:19): pid=515 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:setcred grantors=pam_securetty,pam_tally2,pam_shells,pam_unix,pam_permit,pam_env acct="root" exe="/usr/bin/login" hostname=archiso addr=? terminal=tty1 res=success'
[   20.890607] audit: type=1006 audit(1583160272.670:20): pid=515 uid=0 old-auid=4294967295 auid=0 tty=tty1 old-ses=4294967295 ses=1 res=1
[   20.913260] audit: type=1130 audit(1583160272.693:21): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=user-runtime-dir@0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   20.922476] audit: type=1101 audit(1583160272.703:22): pid=595 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:accounting grantors=pam_tally2,pam_access,pam_unix,pam_permit,pam_time acct="root" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   20.922618] audit: type=1006 audit(1583160272.703:23): pid=595 uid=0 old-auid=4294967295 auid=0 tty=(none) old-ses=4294967295 ses=2 res=1
[   20.923077] audit: type=1105 audit(1583160272.703:24): pid=595 uid=0 auid=0 ses=2 msg='op=PAM:session_open grantors=pam_loginuid,pam_loginuid,pam_keyinit,pam_limits,pam_unix,pam_permit,pam_mail,pam_systemd,pam_env acct="root" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   20.978811] audit: type=1130 audit(1583160272.756:25): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=user@0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   20.983958] audit: type=1105 audit(1583160272.763:26): pid=515 uid=0 auid=0 ses=1 msg='op=PAM:session_open grantors=pam_loginuid,pam_keyinit,pam_limits,pam_unix,pam_permit,pam_mail,pam_systemd,pam_env acct="root" exe="/usr/bin/login" hostname=archiso addr=? terminal=tty1 res=success'

参考

ブートプロセスをみるという稀有な書籍(OSの動きを理解するための書籍は少ないので助かる)。

[Ad] もし参考になれば
Linuxのブートプロセスをみる

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See also