설치 중 키보드 레이아웃이 건너뛰고 Linux Mint에서 변경 사항이 유지되지 않음

Linux Mint 21.2 64비트를 새로 설치했습니다. 설치 도중 키보드 레이아웃을 선택하는 메뉴가 건너뛰어서 선택할 수 없었습니다.

이제 설치 후 로그인을 시도하면 키보드 레이아웃이 기본적으로 US로 설정됩니다. 변경할 수 있지만 재부팅하면 재설정됩니다.

터미널을 통해(다양한 명령을 사용하여) 키보드 레이아웃을 변경하려고 하면 키보드 레이아웃을 설정하려는 기본 언어(독일어, de)를 찾을 수 없습니다.

내 시스템:

인시:

CPU: 6-core AMD Ryzen 5 3600 (-MT MCP-) speed/min/max: 2178/2200/3600 MHz
Kernel: 5.15.0-79-generic x86_64 Up: 38m Mem: 2422.4/31973.2 MiB (7.6%)
Storage: 6.37 TiB (12.0% used) Procs: 367 Shell: Bash inxi: 3.3.13+

LSCPU:

Architektur:                       x86_64
  CPU Operationsmodus:             32-bit, 64-bit
  Adressgrößen:                    43 bits physical, 48 bits virtual
  Byte-Reihenfolge:                Little Endian
CPU(s):                            12
  Liste der Online-CPU(s):         0-11
Anbieterkennung:                   AuthenticAMD
  Modellname:                      AMD Ryzen 5 3600 6-Core Processor
    Prozessorfamilie:              23
    Modell:                        113
    Thread(s) pro Kern:            2
    Kern(e) pro Socket:            6
    Sockel:                        1
    Stepping:                      0
    Frequenzanhebung:              aktiviert
    Maximale Taktfrequenz der CPU: 3600,0000
    Minimale Taktfrequenz der CPU: 2200,0000
    BogoMIPS:                      7186.66

신규 인수:

OS: Linux Mint 21.2 x86_64
Shell: bash 5.1.16 
Resolution: 1920x1080, 1920x1080 
DE: Cinnamon 
WM: Mutter (Muffin) 
CPU: AMD Ryzen 5 3600 (12) @ 3.600GHz 
GPU: AMD ATI Radeon RX 470/480/570/570X/580/580X/590 
Memory: 2019MiB / 31973MiB 

dmidecode -t BIOS:

# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.3.0 present.

Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
    Vendor: American Megatrends Inc.
    Version: 1202
    Release Date: 10/21/2020
    Address: 0xF0000
    Runtime Size: 64 kB
    ROM Size: 16 MB
    Characteristics:
        PCI is supported
        APM is supported
        BIOS is upgradeable
        BIOS shadowing is allowed
        Boot from CD is supported
        Selectable boot is supported
        BIOS ROM is socketed
        EDD is supported
        5.25"/1.2 MB floppy services are supported (int 13h)
        3.5"/720 kB floppy services are supported (int 13h)
        3.5"/2.88 MB floppy services are supported (int 13h)
        Print screen service is supported (int 5h)
        8042 keyboard services are supported (int 9h)
        Serial services are supported (int 14h)
        Printer services are supported (int 17h)
        ACPI is supported
        USB legacy is supported
        BIOS boot specification is supported
        Targeted content distribution is supported
        UEFI is supported
    BIOS Revision: 5.17

Handle 0x0044, DMI type 13, 22 bytes
BIOS Language Information
    Language Description Format: Long
    Installable Languages: 9
        en|US|iso8859-1
        fr|FR|iso8859-1
        zh|TW|unicode
        zh|CN|unicode
        ja|JP|unicode
        de|DE|iso8859-1
        es|ES|iso8859-1
        ru|RU|iso8859-5
        ko|KR|unicode
    Currently Installed Language: de|DE|iso8859-1

dmidecode -t 시스템:

# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.3.0 present.

Handle 0x0001, DMI type 1, 27 bytes
System Information
    Manufacturer: ASUS
    Product Name: System Product Name
    Version: System Version
    Serial Number: System Serial Number
    UUID: 3465b530-6419-cc77-4ad6-f02f741cc591
    Wake-up Type: Power Switch
    SKU Number: SKU
    Family: To be filled by O.E.M.