jirrick

Running Multiple macOS Versions on a Hackintosh: A Multiboot Setup with OpenCore and rEFInd

The Situation

So here's the deal—I've got this Z97-based Hackintosh with an i7-4770 and an RX 580, and it's basically a time machine for macOS versions. Both CPU and GPU are natively supported from Sierra (10.12) through Monterey(12), and with the right SMBIOS configuration and some essential kexts, these versions run almost like they would on actual Apple hardware. Newer releases like Ventura and Sonoma? Also doable, but you're looking at heavier kext dependencies and OCLP patches—essentially entering "it works but the maintenance overhead is real" territory.

The how-to-get-each-version-running part isn't what this post is about though. This is about what happens after you've figured out how to boot each version of macOS on it's own (from an USB stick for example) and realized that having them coexist peacefully on one drive is its own separate nightmare.

The Core Problem (Or: Why OpenCore's Flexibility

jirrick

fps_max 180

bind w "+forward; r_cleardecals";
bind a "+moveleft; r_cleardecals";
bind s "+back; r_cleardecals";
bind d "+moveright; r_cleardecals"

alias +incvol "incrementvar volume 0 2 0.6; +speed"; alias -incvol "incrementvar volume 0 2 -0.6; -speed"; bind SHIFT +incvol

bind z "use weapon_hegrenade";

jirrick

#!/bin/bash

es_url=192.168.1.2:9200
index=twitch_v2

response=$(curl -s $es_url/$index/_search?scroll=1m -d @query.json)
scroll_id=$(echo $response | jq -r ._scroll_id)
hits_count=$(echo $response | jq -r '.hits.hits | length')
hits_so_far=hits_count
echo Got initial response with $hits_count hits and scroll ID $scroll_id

jirrick

import java.util.*;

public class FizzBuzz
{
    Map<Integer, String> map;
       
    public FizzBuzz()
    {
       Init();
    }

jirrick

#!/usr/bin/perl

#https://www.elastic.co/blog/changing-mapping-with-zero-downtime

use Search::Elasticsearch 2.03;

my $es = Search::Elasticsearch->new( nodes => '192.168.1.2:9200');

# Reindex docs:
my $bulk = $es->bulk_helper(

jirrick

#O365 Service Health PowerShell Demo using https://www.powershellgallery.com/packages/O365ServiceCommunications/1.4
#Jiri Hudec - 19.5.2017

#Check O365ServiceCommunications module is installed
if (Get-Module -ListAvailable -Name O365ServiceCommunications ) {
    
    #Ask for credentials
    $cred = get-credential -Message "Please enter your Office 365 Administrator credentials"

    #Check credentials

jirrick

GoogleAssistant

GooglePlus             # Skip Google+
Chrome                 # Skip Google Chrome Browser
CloudPrint             # Skip Google Cloud Print
Docs                   # Skip Google Docs
Drive                  # Skip Google Drive
Fitness                # Skip Google Fit
Keep                   # Skip Google Keep
NewsWidget             # Skip Google News & Weather

jirrick

04-07 21:35:47.674   419   419 I MSM-irqbalance: Decided to move IRQ333 from CPU0 to CPU3
04-07 21:35:49.811  4489  4489 I SlideTouchEvent: vel=52.897938, MinimumFlingVelocity=158
04-07 21:35:49.945  4489  4489 I SlideTouchEvent: vel=8.654109, MinimumFlingVelocity=158
04-07 21:35:51.185   975  4534 I ActivityManager: START u0 {act=android.settings.SETTINGS flg=0x10200000 cmp=com.android.settings/.Settings} from uid 10088 on display 0
04-07 21:35:51.332  9268 10571 W System  : ClassLoader referenced unknown path: 
04-07 21:35:51.333  9268 10571 W System  : ClassLoader referenced unknown path: /system/priv-app/CellBroadcastReceiver/lib/arm64
04-07 21:35:51.339  9268 10571 D ApplicationLoaders: ignored Vulkan layer search path /system/priv-app/CellBroadcastReceiver/lib/arm64:/system/lib64:/vendor/lib64 for namespace 0x7f8f6750f0
04-07 21:35:51.426   975   995 D BluetoothManagerService: Message: 20
04-07 21:35:51.426   975   995 D BluetoothManagerService: Added callback: android.bluetooth.IBluetoothManagerCallbac

jirrick

#!/system/bin/sh

LI="log -p i -t 90less" #log-info
LE="log -p e -t 90less" #log-error

run_and_log() #log return status of commands
{
eval "$1"
if [ $? == 0 ]
then

jirrick

% DU_1 - test prvociselnosti v unarni aritmetice
% Jiri Hudec

% polovina(X,Y) - metoda pro nalezeni poloviny (+1)
polovina(X,Y):-polovina3(X,0,Y).
% polovina3(X,Y,Z) - pomocna metoda pro nalezeni poloviny
polovina3(0,Y,s(Y)).
polovina3(s(0),Y,Z):-polovina3(0,Y,Z).
polovina3(s(s(X)),Y,Z):-polovina3(X,s(Y),Z).