我最近在我的 Mac Mini（2012 年末）上安装了 Ubuntu 22.04.3 LTS，并在同一台机器上以双启动方式运行 macOS Catalina（10.15）。到目前为止，一切进展顺利。由于我是 Linux 新手，我想知道开始屏幕上的错误是否是需要修复的严重错误。在 Google 搜索中，我发现了一个提示，使用命令dmesg在终端中查看启动过程的日志文件，以便我可以检查错误并尝试修复它们。
我发现了一些错误，因为我想更多地了解 Linux 和 Ubuntu。修复它们会很棒。但由于我对所有这些命令行信息都很陌生，所以我很感激有人能给我一些帮助。
#1
[ 0.127991] DMAR: Host address width 36
[ 0.127991] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
[ 0.127999] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap c0000020e60262 ecap f0101a
[ 0.128003] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
[ 0.128007] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap c9008020660262 ecap f0105a
[ 0.128009] DMAR: RMRR base: 0x0000008b800000 end: 0x0000008f9fffff
[ 0.128013] DMAR-IR: IOAPIC id 0 under DRHD base 0xfed91000 IOMMU 1
[ 0.128014] DMAR-IR: HPET id 0 under DRHD base 0xfed91000
[ 0.128016] DMAR-IR: [Firmware Bug]: ioapic 2 has no mapping iommu, interrupt remapping** will be disabled
[ 0.128021] DMAR-IR: Not enabling interrupt remapping
[ 0.128023] DMAR-IR: Failed to enable irq remapping. You are vulnerable to irq-injection attacks.
#2
[ 0.243345] ACPI Error: Needed type [Reference], found [Integer] (____ptrval____) (20221020/exresop-66)
[ 0.243345] ACPI Error: AE_AML_OPERAND_TYPE, While resolving operands for [Store] (20221020/dswexec-433)
[ 0.243345] No Local Variables are initialized for Method [_PDC]
[ 0.243345] Initialized Arguments for Method [_PDC]: (1 arguments defined for method invocation)
[ 0.243345] Arg0: (____ptrval____) <Obj> Buffer(12) 01 00 00 00 01 00 00 00
[ 0.243345] ACPI Error: Aborting method \_PR.CPU0._PDC due to previous error (AE_AML_OPERAND_TYPE) (20221020/psparse-529)
[ 0.243345] ACPI: Dynamic OEM Table Load:
[ 0.243345] ACPI: SSDT 0xFFFF9015C0A54C00 0003A4 (v01 PmRef ApIst 00003000 INTL 20100915)
[ 0.243345] ACPI: Dynamic OEM Table Load:
[ 0.243345] ACPI: SSDT 0xFFFF9015C0E44A00 000119 (v01 PmRef ApCst 00003000 INTL 20100915)
[ 0.243345] ACPI: Interpreter enabled
[ 0.243345] ACPI: PM: (supports S0 S3 S4 S5)
[ 0.243345] ACPI: Using IOAPIC for interrupt routing
#3
[ 9.165285] b43-phy0: Broadcom 4331 WLAN found (core revision 29)
[ 9.165821] b43-phy0: Found PHY: Analog 9, Type 7 (HT), Revision 1
[ 9.165835] b43-phy0: Found Radio: Manuf 0x17F, ID 0x2059, Revision 0, Version 1
[ 9.165839] b43-phy0 warning: 5 GHz band is unsupported on this PHY
[ 9.171056] b43 bcma0:1: Direct firmware load for b43/ucode29_mimo.fw failed with error -2
[ 9.171099] b43 bcma0:1: Direct firmware load for b43/ucode29_mimo.fw failed with error -2
[ 9.171140] b43 bcma0:1: Direct firmware load for b43-open/ucode29_mimo.fw failed with error -2
[ 9.171174] b43 bcma0:1: Direct firmware load for b43-open/ucode29_mimo.fw failed with error -2
[ 9.171178] b43-phy0 ERROR: Firmware file "b43/ucode29_mimo.fw" not found
[ 9.171187] b43-phy0 ERROR: Firmware file "b43-open/ucode29_mimo.fw" not found
[ 9.171192] b43-phy0 ERROR: You must go to https://wireless.wiki.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.
[ 9.171319] Broadcom 43xx driver loaded [ Features: PNL ]
[ 9.202190] usb 3-2.3.1: current rate 33186 is different from the runtime rate 48000
[ 9.210263] usb 3-2.3.2: 1:1: cannot get freq at ep 0x83
[ 9.214624] usb 3-2.3.2: 2:1: cannot get freq at ep 0x4
#4
[ 12.651871] usb 3-2.3.1: current rate 33186 is different from the runtime rate 44100
[ 12.677685] usb 3-2.3.1: current rate 33186 is different from the runtime rate 44100
[ 12.704014] usb 3-2.3.2: 2:1: cannot get freq at ep 0x4