라즈베리파이 업데이트

$ sudo apt update
기존:1 http://deb.debian.org/debian bullseye InRelease
기존:2 http://deb.debian.org/debian bullseye-updates InRelease
받기:3 http://security.debian.org/debian-security bullseye-security InRelease [48.4 kB]
기존:4 https://downloads.plex.tv/repo/deb public InRelease
무시:5 https://repo.vivaldi.com/stable/deb stable InRelease
기존:6 https://repo.vivaldi.com/stable/deb stable Release
기존:7 http://archive.raspberrypi.org/debian bullseye InRelease
내려받기 48.4 k바이트, 소요시간 2초 (21.4 k바이트/초)
패키지 목록을 읽는 중입니다... 완료
의존성 트리를 만드는 중입니다... 완료
상태 정보를 읽는 중입니다... 완료        
All packages are up to date.

$ sudo apt full-upgrade
패키지 목록을 읽는 중입니다... 완료
의존성 트리를 만드는 중입니다... 완료
상태 정보를 읽는 중입니다... 완료        
업그레이드를 계산하는 중입니다... 완료
0개 업그레이드, 0개 새로 설치, 0개 제거 및 0개 업그레이드 안 함.

라즈베리파이 펌웨어 업데이트

$ sudo rpi-update
 *** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
 *** Performing self-update
 *** Relaunching after update
 *** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
 *** We're running for the first time
 *** Backing up files (this will take a few minutes)
 *** Backing up firmware
 *** Backing up modules 6.1.21-v8+
#############################################################
WARNING: This update bumps to rpi-6.1.y linux tree
See: https://forums.raspberrypi.com/viewtopic.php?t=344246

'rpi-update' should only be used if there is a specific
reason to do so - for example, a request by a Raspberry Pi
engineer or if you want to help the testing effort
and are comfortable with restoring if there are regressions.

DO NOT use 'rpi-update' as part of a regular update process.
##############################################################
Would you like to proceed? (y/N)

 *** Downloading specific firmware revision (this will take a few minutes)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0     0    0     0    0     0      0      0 --:--:-100 8860k    0 8860k    0     0  7162k      0 --:--:-100 28.3M    0 28.3M    0     0  12.6M      0 --:--:-100 51.8M    0 51.8M    0     0  16.0M      0 --:--:-100 74.1M    0 74.1M    0     0  17.4M      0 --:--:-100 93.8M    0 93.8M    0     0  17.9M      0 --:--:-100  116M    0  116M    0     0  18.7M      0 --:--:-100  128M    0  128M    0     0  17.2M      0 --:--:-100  136M    0  136M    0     0  16.5M      0 --:--:-100  144M    0  144M    0     0  16.1M      0 --:--:--  0:00:08 --:--:-- 14.9M
 *** Updating firmware
 *** Updating kernel modules
 *** depmod 6.1.54+
 *** depmod 6.1.54-v8_16k+
 *** depmod 6.1.54-v8+
 *** depmod 6.1.54-v7+
 *** depmod 6.1.54-v7l+
 *** Updating VideoCore libraries
 *** Using SoftFP libraries
 *** Updating SDK
 *** Running ldconfig
 *** Storing current firmware revision
 *** Deleting downloaded files
 *** Syncing changes to disk
 *** If no errors appeared, your firmware was successfully updated to cac01bed1224743104cb2a4103605f269f207b1a
 *** A reboot is needed to activate the new firmware

최신 부트로더 설치

$ sudo rpi-eeprom-update -d -a
*** INSTALLING EEPROM UPDATES ***

BOOTLOADER: update available
   CURRENT: 2020. 09. 03. (목) 12:11:43 UTC (1599135103)
    LATEST: 2023. 01. 11. (수) 17:40:52 UTC (1673458852)
   RELEASE: default (/lib/firmware/raspberrypi/bootloader/default)
            Use raspi-config to change the release.

  VL805_FW: Dedicated VL805 EEPROM
     VL805: up to date
   CURRENT: 000138c0
    LATEST: 000138c0
   CURRENT: 2020. 09. 03. (목) 12:11:43 UTC (1599135103)
    UPDATE: 2023. 01. 11. (수) 17:40:52 UTC (1673458852)
    BOOTFS: /boot
Using recovery.bin for EEPROM update

EEPROM updates pending. Please reboot to apply the update.
To cancel a pending update run "sudo rpi-eeprom-update -r".

라즈베리파이 재부팅

$ sudo reboot