agguro

Emulating Raspberry Pi 4 with Qemu

To be specific here, we're simply emulating Raspberry Pi OS (64-bit) in qemu. So it is as good for any other Raspberry Pis as it is for Raspberry Pi 4. :D

Hope it helps.

Shortcomings: No GUI yet, only console.

Steps

agguro

You might want to read this to get an introduction to armel vs armhf.

If the below is too much, you can try Ubuntu-ARMv7-Qemu but note it contains non-free blobs.

Running ARM programs under linux (without starting QEMU VM!)

First, cross-compile user programs with GCC-ARM toolchain. Then install qemu-arm-static so that you can run ARM executables directly on linux

agguro

QEMU arm64 cloud server emulation

This is basically a rehash of an original post on CNXSoft - all credit (particularly for the Virtio device arguments used below) belongs to the author of that piece.

Download the latest uefi1.img image. E.g. ubuntu-16.04-server-cloudimg-arm64-uefi1.img from https://cloud-images.ubuntu.com/releases/16.04/release/

Download the UEFI firmware image QEMU_EFI.fd from https://releases.linaro.org/components/kernel/uefi-linaro/latest/release/qemu64/

Determine your current username and get your current ssh public key:

agguro

#!/bin/sh

#Check the Drive Space Used by Cached Files
du -sh /var/cache/apt/archives

#Clean all the log file
#for logs in `find /var/log -type f`;  do > $logs; done

logs=`find /var/log -type f`
for i in $logs

agguro

#include <stdint.h>     //for int8_t
#include <string.h>     //for memcmp
#include <wmmintrin.h>  //for intrinsics for AES-NI
//compile using gcc and following arguments: -g;-O0;-Wall;-msse2;-msse;-march=native;-maes

//internal stuff

//macros
#define DO_ENC_BLOCK(m,k) \
	do{\

agguro

;          1         2         3         4         5         6         7
;01234567890123456789012345678901234567890123456789012345678901234567890
;=======================================================================
;+---------------------------------------------------------------------+
;|                                                                     |
;|    Example using FPU registers for floating point calculations.     |
;|                                                                     |
;|    The purpose of this source code is to demonstrate on how to      |
;|    do floating-point operations using FPU registers.                |
;|                                                                     |

agguro

#deb cdrom:[Ubuntu 18.04 LTS _Bionic Beaver_ - Release amd64 (20180426)]/ bionic main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://us.archive.ubuntu.com/ubuntu/ bionic main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted

agguro

sudo su postgres

psql

update pg_database set datistemplate=false where datname='template1';
drop database Template1;
create database template1 with owner=postgres encoding='UTF-8'
  lc_collate='en_US.utf8' lc_ctype='en_US.utf8' template template0;

update pg_database set datistemplate=true where datname='template1';