https://github.com/sahilrajput03/learn-raspberry

https://github.com/sahilrajput03/learn-raspberry

Last synced: about 1 month ago
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• Host: GitHub
• URL: https://github.com/sahilrajput03/learn-raspberry
• Owner: sahilrajput03
• Created: 2022-11-19T13:17:37.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2024-07-18T23:10:35.000Z (6 months ago)
• Last Synced: 2024-11-09T17:53:25.167Z (2 months ago)
• Language: Shell
• Size: 256 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README-from-first-raspbian-os.md

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README

        
# README

**Why this readme?: Becoz all the time I was getting wrong info about my processor when I used commands like `lscpu` and `cat /proc/cpuinfo`.*

- Official Response (Mongodb): Installation on 32bit system: [Click here](https://www.mongodb.com/community/forums/t/installation-on-32bit-system/106492). **TLDR: NO, its not at all recommended bcoz newer version are no longer developer for 32-bit architecture.**

# NOTE: Below output is from the Rasbian OS only (i.e., 32 bit os, and it was showing all informatino wrong about the processor i.e, arvl7 but my actual processor was `Cortes-A72 Processor` {Device Name: `Raspberry-pi-4-model-b`})

Check the problem stated here: [Click here](https://raspberrypi.stackexchange.com/questions/101215/why-raspberry-pi-4b-claims-that-its-processor-is-armv7l-when-in-official-specif)

**NOTE: My raspberry process is 64-bi quad-core Cortex-A72 processor.**

## `armv7l` processor can only run 32 bit OS

Source: [Click here](https://askubuntu.com/questions/928227/is-armv7l-32-or-64-bit), Source2: [Click here](https://unix.stackexchange.com/questions/136407/is-my-linux-arm-32-or-64-bit)

### Is my running Linux kernel 32 bit or 64 bit?

```bash

getconf LONG_BIT

# Output: 32

````

### Cpu info

```bash

lscpu

# OUTPUT:

# Architecture:        armv7l

# Byte Order:          Little Endian

# CPU(s):              4

# On-line CPU(s) list: 0-3

# Thread(s) per core:  1

# Core(s) per socket:  4

# Socket(s):           1

# Vendor ID:           ARM

# Model:               3

# Model name:          Cortex-A72

# Stepping:            r0p3

# CPU max MHz:         1500.0000

# CPU min MHz:         600.0000

# BogoMIPS:            108.00

# Flags:               half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32

```

```bash

cat /proc/cpuinfo

# processor       : 0

# model name      : ARMv7 Processor rev 3 (v7l)

# BogoMIPS        : 108.00

# Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32

# CPU implementer : 0x41

# CPU architecture: 7

# CPU variant     : 0x0

# CPU part        : 0xd08

# CPU revision    : 3

# 

# processor       : 1

# model name      : ARMv7 Processor rev 3 (v7l)

# BogoMIPS        : 108.00

# Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32

# CPU implementer : 0x41

# CPU architecture: 7

# CPU variant     : 0x0

# CPU part        : 0xd08

# CPU revision    : 3

# 

# processor       : 2

# model name      : ARMv7 Processor rev 3 (v7l)

# BogoMIPS        : 108.00

# Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32

# CPU implementer : 0x41

# CPU architecture: 7

# CPU variant     : 0x0

# CPU part        : 0xd08

# CPU revision    : 3

# 

# processor       : 3

# model name      : ARMv7 Processor rev 3 (v7l)

# BogoMIPS        : 108.00

# Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32

# CPU implementer : 0x41

# CPU architecture: 7

# CPU variant     : 0x0

# CPU part        : 0xd08

# CPU revision    : 3

# 

# Hardware        : BCM2711

# Revision        : d03114

# Serial          : 10000000bed6ad56

# Model           : Raspberry Pi 4 Model B Rev 1.4

```