BranchesTags

Repository files navigation

Multiboot with OpenCore

Hello there! Looks like you're trying to get macOS and $(OtherOS) installed on your system, but you also do not want to mess $(OtherOS) or macOS in the process. You will be guided here through a multitude of steps to achieve just that while keeping the OS setups as unaffected as possible.

Firmware Types

Multibooting is greatly affected by the type of firmware you're running. This guide will cover the known 2 types which are:

  • UEFI
  • Legacy/CSM/BIOS

The differences are minimal once you're using OpenCore but also it might be a bit difficult for the latter. Other than that, this guide will cover these elements:

  1. What is multibooting and how does it work?
  2. Partitioning vs Disk separating
  3. UEFI
    1. One disk for all OSes
    2. Different disks for different OSes
  4. Legacy
    1. One disk for all OSes
    2. Different disks for different OSes
  5. Troubleshooting
  6. Tips and Tricks

Disclaimer

We are not responsible for bricked devices, dead hard drives, thermonuclear war, or you getting fired because you got a kernel panic and didn't save your work. You are responsible for reading everything carefully before you do anything. Do your research and ask for support if you have any questions or issues before trying random things on the internet because "it's the internet". If you do, YOU are choosing to follow random things on the internet, and if YOU point the finger at us for messing up your device, WE will laugh at you.

Now that we got that out of our way let's get going, and good luck.

About

Multi-boot Guide for OpenCore - WIP

dortania.github.io/OpenCore-Multiboot/

Resources

Readme
Activity
Custom properties

Stars

120 stars

Watchers

16 watching

Forks

56 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
Repository files navigation
Multiboot with OpenCore
Hello there! Looks like you're trying to get macOS and $(OtherOS) installed on your system, but you also do not want to mess $(OtherOS) or macOS in the process. You will be guided here through a multitude of steps to achieve just that while keeping the OS setups as unaffected as possible.
Firmware Types
Multibooting is greatly affected by the type of firmware you're running. This guide will cover the known 2 types which are:
  • UEFI
  • Legacy/CSM/BIOS
The differences are minimal once you're using OpenCore but also it might be a bit difficult for the latter. Other than that, this guide will cover these elements:
  1. What is multibooting and how does it work?
  2. Partitioning vs Disk separating
  3. UEFI

    1. One disk for all OSes
    2. Different disks for different OSes
  4. Legacy

    1. One disk for all OSes
    2. Different disks for different OSes
  5. Troubleshooting
  6. Tips and Tricks
Disclaimer
We are not responsible for bricked devices, dead hard drives, thermonuclear war, or you getting fired because you got a kernel panic and didn't save your work. You are responsible for reading everything carefully before you do anything. Do your research and ask for support if you have any questions or issues before trying random things on the internet because "it's the internet". If you do, YOU are choosing to follow random things on the internet, and if YOU point the finger at us for messing up your device, WE will laugh at you.
Now that we got that out of our way let's get going, and good luck.
About
Multi-boot Guide for OpenCore - WIP
dortania.github.io/OpenCore-Multiboot/
Resources
Readme
Activity
Custom properties
Stars
120 stars
Watchers
16 watching
Forks
56 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Multiboot with OpenCore
Hello there! Looks like you're trying to get macOS and $(OtherOS) installed on your system, but you also do not want to mess $(OtherOS) or macOS in the process. You will be guided here through a multitude of steps to achieve just that while keeping the OS setups as unaffected as possible.
Firmware Types
Multibooting is greatly affected by the type of firmware you're running. This guide will cover the known 2 types which are:
  • UEFI
  • Legacy/CSM/BIOS
The differences are minimal once you're using OpenCore but also it might be a bit difficult for the latter. Other than that, this guide will cover these elements:
  1. What is multibooting and how does it work?
  2. Partitioning vs Disk separating
  3. UEFI

    1. One disk for all OSes
    2. Different disks for different OSes
  4. Legacy

    1. One disk for all OSes
    2. Different disks for different OSes
  5. Troubleshooting
  6. Tips and Tricks
Disclaimer
We are not responsible for bricked devices, dead hard drives, thermonuclear war, or you getting fired because you got a kernel panic and didn't save your work. You are responsible for reading everything carefully before you do anything. Do your research and ask for support if you have any questions or issues before trying random things on the internet because "it's the internet". If you do, YOU are choosing to follow random things on the internet, and if YOU point the finger at us for messing up your device, WE will laugh at you.
Now that we got that out of our way let's get going, and good luck.
About
Multi-boot Guide for OpenCore - WIP
dortania.github.io/OpenCore-Multiboot/
Resources
Readme
Activity
Custom properties
Stars
120 stars
Watchers
16 watching
Forks
56 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Multiboot with OpenCore
Hello there! Looks like you're trying to get macOS and $(OtherOS) installed on your system, but you also do not want to mess $(OtherOS) or macOS in the process. You will be guided here through a multitude of steps to achieve just that while keeping the OS setups as unaffected as possible.
Firmware Types
Multibooting is greatly affected by the type of firmware you're running. This guide will cover the known 2 types which are:
  • UEFI
  • Legacy/CSM/BIOS
The differences are minimal once you're using OpenCore but also it might be a bit difficult for the latter. Other than that, this guide will cover these elements:
  1. What is multibooting and how does it work?
  2. Partitioning vs Disk separating
  3. UEFI

    1. One disk for all OSes
    2. Different disks for different OSes
  4. Legacy

    1. One disk for all OSes
    2. Different disks for different OSes
  5. Troubleshooting
  6. Tips and Tricks
Disclaimer
We are not responsible for bricked devices, dead hard drives, thermonuclear war, or you getting fired because you got a kernel panic and didn't save your work. You are responsible for reading everything carefully before you do anything. Do your research and ask for support if you have any questions or issues before trying random things on the internet because "it's the internet". If you do, YOU are choosing to follow random things on the internet, and if YOU point the finger at us for messing up your device, WE will laugh at you.
Now that we got that out of our way let's get going, and good luck.
About
Multi-boot Guide for OpenCore - WIP
dortania.github.io/OpenCore-Multiboot/
Resources
Readme
Activity
Custom properties
Stars
120 stars
Watchers
16 watching
Forks
56 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
Multiboot with OpenCore
Hello there! Looks like you're trying to get macOS and $(OtherOS) installed on your system, but you also do not want to mess $(OtherOS) or macOS in the process. You will be guided here through a multitude of steps to achieve just that while keeping the OS setups as unaffected as possible.
Firmware Types
Multibooting is greatly affected by the type of firmware you're running. This guide will cover the known 2 types which are:
  • UEFI
  • Legacy/CSM/BIOS
The differences are minimal once you're using OpenCore but also it might be a bit difficult for the latter. Other than that, this guide will cover these elements:
  1. What is multibooting and how does it work?
  2. Partitioning vs Disk separating
  3. UEFI

    1. One disk for all OSes
    2. Different disks for different OSes
  4. Legacy

    1. One disk for all OSes
    2. Different disks for different OSes
  5. Troubleshooting
  6. Tips and Tricks
Disclaimer
We are not responsible for bricked devices, dead hard drives, thermonuclear war, or you getting fired because you got a kernel panic and didn't save your work. You are responsible for reading everything carefully before you do anything. Do your research and ask for support if you have any questions or issues before trying random things on the internet because "it's the internet". If you do, YOU are choosing to follow random things on the internet, and if YOU point the finger at us for messing up your device, WE will laugh at you.
Now that we got that out of our way let's get going, and good luck.
About
Multi-boot Guide for OpenCore - WIP
dortania.github.io/OpenCore-Multiboot/
Resources
Readme
Activity
Custom properties
Stars
120 stars
Watchers
16 watching
Forks
56 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Multiboot with OpenCore
Hello there! Looks like you're trying to get macOS and $(OtherOS) installed on your system, but you also do not want to mess $(OtherOS) or macOS in the process. You will be guided here through a multitude of steps to achieve just that while keeping the OS setups as unaffected as possible.
Firmware Types
Multibooting is greatly affected by the type of firmware you're running. This guide will cover the known 2 types which are:
  • UEFI
  • Legacy/CSM/BIOS
The differences are minimal once you're using OpenCore but also it might be a bit difficult for the latter. Other than that, this guide will cover these elements:
  1. What is multibooting and how does it work?
  2. Partitioning vs Disk separating
  3. UEFI

    1. One disk for all OSes
    2. Different disks for different OSes
  4. Legacy

    1. One disk for all OSes
    2. Different disks for different OSes
  5. Troubleshooting
  6. Tips and Tricks
Disclaimer
We are not responsible for bricked devices, dead hard drives, thermonuclear war, or you getting fired because you got a kernel panic and didn't save your work. You are responsible for reading everything carefully before you do anything. Do your research and ask for support if you have any questions or issues before trying random things on the internet because "it's the internet". If you do, YOU are choosing to follow random things on the internet, and if YOU point the finger at us for messing up your device, WE will laugh at you.
Now that we got that out of our way let's get going, and good luck.
About
Multi-boot Guide for OpenCore - WIP
dortania.github.io/OpenCore-Multiboot/
Resources
Readme
Activity
Custom properties
Stars
120 stars
Watchers
16 watching
Forks
56 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Multiboot with OpenCore
Hello there! Looks like you're trying to get macOS and $(OtherOS) installed on your system, but you also do not want to mess $(OtherOS) or macOS in the process. You will be guided here through a multitude of steps to achieve just that while keeping the OS setups as unaffected as possible.
Firmware Types
Multibooting is greatly affected by the type of firmware you're running. This guide will cover the known 2 types which are:
  • UEFI
  • Legacy/CSM/BIOS
The differences are minimal once you're using OpenCore but also it might be a bit difficult for the latter. Other than that, this guide will cover these elements:
  1. What is multibooting and how does it work?
  2. Partitioning vs Disk separating
  3. UEFI

    1. One disk for all OSes
    2. Different disks for different OSes
  4. Legacy

    1. One disk for all OSes
    2. Different disks for different OSes
  5. Troubleshooting
  6. Tips and Tricks
Disclaimer
We are not responsible for bricked devices, dead hard drives, thermonuclear war, or you getting fired because you got a kernel panic and didn't save your work. You are responsible for reading everything carefully before you do anything. Do your research and ask for support if you have any questions or issues before trying random things on the internet because "it's the internet". If you do, YOU are choosing to follow random things on the internet, and if YOU point the finger at us for messing up your device, WE will laugh at you.
Now that we got that out of our way let's get going, and good luck.
About
Multi-boot Guide for OpenCore - WIP
dortania.github.io/OpenCore-Multiboot/
Resources
Readme
Activity
Custom properties
Stars
120 stars
Watchers
16 watching
Forks
56 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
Repository files navigation
Multiboot with OpenCore
Hello there! Looks like you're trying to get macOS and $(OtherOS) installed on your system, but you also do not want to mess $(OtherOS) or macOS in the process. You will be guided here through a multitude of steps to achieve just that while keeping the OS setups as unaffected as possible.
Firmware Types
Multibooting is greatly affected by the type of firmware you're running. This guide will cover the known 2 types which are:
  • UEFI
  • Legacy/CSM/BIOS
The differences are minimal once you're using OpenCore but also it might be a bit difficult for the latter. Other than that, this guide will cover these elements:
  1. What is multibooting and how does it work?
  2. Partitioning vs Disk separating
  3. UEFI

    1. One disk for all OSes
    2. Different disks for different OSes
  4. Legacy

    1. One disk for all OSes
    2. Different disks for different OSes
  5. Troubleshooting
  6. Tips and Tricks
Disclaimer
We are not responsible for bricked devices, dead hard drives, thermonuclear war, or you getting fired because you got a kernel panic and didn't save your work. You are responsible for reading everything carefully before you do anything. Do your research and ask for support if you have any questions or issues before trying random things on the internet because "it's the internet". If you do, YOU are choosing to follow random things on the internet, and if YOU point the finger at us for messing up your device, WE will laugh at you.
Now that we got that out of our way let's get going, and good luck.
About
Multi-boot Guide for OpenCore - WIP
dortania.github.io/OpenCore-Multiboot/
Resources
Readme
Activity
Custom properties
Stars
120 stars
Watchers
16 watching
Forks
56 forks
Report repository
Releases
Packages
Used by
Contributors
Languages