RaspberryPi 2 Model B v1.1

References
1

IMG_20250316_152911
IMG_20250316_1529111920×1440 211 KB

IMG_20250316_152951
IMG_20250316_1529511920×1440 170 KB

https://www.raspberrypi.com/products/raspberry-pi-2-model-b/

2

Tested on march 16th, 2025

Installation

Download the latest Raspberry Pi OS, lite version, based on Debian bookworm:

$ wget https://downloads.raspberrypi.com/raspios_lite_armhf/images/raspios_lite_armhf-2024-11-19/2024-11-19-raspios-bookworm-armhf-lite.img.xz

Verify the integrity of the file:

$ wget https://downloads.raspberrypi.com/raspios_lite_armhf/images/raspios_lite_armhf-2024-11-19/2024-11-19-raspios-bookworm-armhf-lite.img.xz.sha256
$ echo "$(cat 2024-11-19-raspios-bookworm-armhf-lite.img.xz.sha256)" | sha256sum --check

Copy the image to an SD card:

$ unxz 2024-11-19-raspios-bookworm-armhf.img.xz 
$ sudo dd if=2024-11-19-raspios-bookworm-armhf-lite.img of=<device> bs=16M status=progress oflag=sync

Now put the SD card in the RaspberryPi, connect it to an HDMI monitor and a USB keyboard, and boot.

Enter keyboard layout, the user name and the password.

Login.

Enable ssh:

$ sudo systemctl enable ssh

Change the hostname:

$ sudo hostnamectl set-hostname tabechaka-05

Also edit the file /etc/hosts to replace raspberrypi with tabechaka-05.

Turn it off:

$ systemctl poweroff

Now I can move it to the rack and login with ssh.

Install software for administration:

$ sudo apt update
$ sudo apt install emacs-nox byobu

Enable ssh public key authentication:

$ mkdir --mode 700 ~/.ssh

Add my user public key to ~/.ssh/authorized_keys.

Adjust the permission of this file.

$ chmod 600 .ssh/authorized_keys

Disable ssh password autentication:

Edit the file /etc/ssh/sshd_config, uncommenting and setting:

PasswordAuthentication no

$ sudo systemctl reload sshd

Reboot:

$ sudo systemctl reboot
3

System information

tl;dr:
Processor ARM Cortex-A7, 32 bits, 1GB of memory, Debian 12

$ lsb_release --all
No LSB modules are available.
Distributor ID:	Raspbian
Description:	Raspbian GNU/Linux 12 (bookworm)
Release:	12
Codename:	bookworm

$ lscpu
Architecture:             armv7l
  Byte Order:             Little Endian
CPU(s):                   4
  On-line CPU(s) list:    0-3
Vendor ID:                ARM
  Model name:             Cortex-A7
    Model:                5
    Thread(s) per core:   1
    Core(s) per socket:   4
    Socket(s):            1
    Stepping:             r0p5
    CPU(s) scaling MHz:   67%
    CPU max MHz:          900.0000
    CPU min MHz:          600.0000
    BogoMIPS:             38.40
    Flags:                half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
Vulnerabilities:          
  Gather data sampling:   Not affected
  Itlb multihit:          Not affected
  L1tf:                   Not affected
  Mds:                    Not affected
  Meltdown:               Not affected
  Mmio stale data:        Not affected
  Reg file data sampling: Not affected
  Retbleed:               Not affected
  Spec rstack overflow:   Not affected
  Spec store bypass:      Not affected
  Spectre v1:             Mitigation; __user pointer sanitization
  Spectre v2:             Not affected
  Srbds:                  Not affected
  Tsx async abort:        Not affected

$ lsblk
NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
mmcblk0     179:0    0   58G  0 disk 
├─mmcblk0p1 179:1    0  512M  0 part /boot/firmware
└─mmcblk0p2 179:2    0 57.4G  0 part /

$ free --human
               total        used        free      shared  buff/cache   available
Mem:           920Mi       104Mi       765Mi       976Ki        99Mi       816Mi
Swap:          511Mi          0B       511Mi