Questions tagged [bootable-disk]

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How to create a bootable Windows 10 USB with a Mac to boot/install on a PC?

I have no access to a Windows machine at the moment, but need to create a bootable Windows 10 USB stick from a Mac that can be used to boot and install on a PC (not a Mac). Microsoft provides the ISO ...
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29 views

How to create a bootable Linux iso from an existing iso?

I am trying to create a completely unattended installation of CentOS. To do that, I downloaded the latest CentOS iso, and followed the directions listed here. After I attached the iso with hdiutil, I ...
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1answer
344 views

macOS Mojave: createinstallmedia: command not found

I'm following the official Apple guide to create a bootable installer for macOS Mojave: How to create a bootable installer for macOS when I execute the command: sudo /Applications/Install\ macOS\ ...
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2answers
49 views

Issue trying to run macOS Mojave off a bootable external USB

I'm trying to run macOS off a USB drive, so I can troubleshoot some issues I've been having with a monitor. I've followed this how-to video, and can reboot (holding Option + Power On). Once I choose ...
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158 views

How to make a bootable USB in Catalina [duplicate]

/dev/disk1 (synthesized): #: TYPE NAME SIZE IDENTIFIER 0: APFS Container Scheme - +250.8 GB disk1 ...
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43 views

How to create bootable installation media for Mojave without erasing the target drive

I would like to use my existing external ssd (500GB) as a bootable Mojave installation disk. But I don't want to erase the contents or format the drive. This page has the general instructions https://...
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46 views

Cannot boot into any OS, Recovery or Safemode. (Macbook Pro 15 Ret Mid 2012)

My SSD was partitioned for Windows and macOS. I use the Macbook almost exclusively for Windows 10. Mid 2012 MBP Retina 15" 2.3Ghz 8GB. I recently began having problems booting into Windows. The ...
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1answer
70 views

Bootable USB for Windows 7 isn’t showing up on MacBook Pro 12,2

I made a Windows 7 installation USB using Microsoft’s installation tool on my Windows PC. When I boot the Mac while holding Option. Only the Mac disk appears. The USB is NTFS. I checked if anything is ...
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2answers
203 views

Is it really not possible to run an earlier version of OS X than what the machine shipped with?

Just got a 2019 iMac, shipped with Mojave installed obviously. It never even occurred to me that it may not be able to run an earlier version of OS X, but after wasting tons of time trying to create a ...
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1answer
226 views

Can you use a bootable macOS USB created on a MacBook pro, to install macOS on another MacBook Pro?

So my friend has a 2011 MacBook Pro. The laptop's hard drive crashed and no longer works. He bought a new SSD as a replacement, but he doesn't have a way to install macOS on this new SSD, because he ...
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1answer
54 views

No install location available in Mac Internet Recovery

I tried to start my Mac & a folder with a question mark appeared. I researched on Google and discovered it was a problem with the Boot partition. I saw how to fix it. I used Opt ⌥ while booting ...
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0answers
430 views

How to create a custom macOS Mojave 10.14 read-only boot volume?

Preamble 5 or 10 years ago it was common for power users to create their own customized OS X 10.7/10.8/10.9 boot CDs and DVDs using third-party utilities like "BootCD." With the decline of CD/DVD ...
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0answers
20 views

Booting into macOS installer; possibly stuck

I'm trying to boot into a macOS Sierra installer that I made today. For the last about 20% of the progress bar, it was booting extremely slowly. Now, the progress bar has been stuck for the last ~20 ...
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145 views

How to make a bootable USB drive from a dmg containing multiple partitions

I have a USB flash drive of the Mojave installer from which I created a dmg containing two partitions: the installer partition and a custom EFI partition. The drive booted and installed fine. How do ...
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505 views

Making Uninitialized APFS Volume Bootable

Recently I installed Ubuntu on my MacBook Pro (Mid 2012) on a second volume. I wanted to change to the Ubuntu Volume through Startup Manager and used this tutorial to do so: Installing Ubuntu on Mac ...
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0answers
5k views

Where does Mojave download the Mojave installer?

Similar to this, I would like to understand where Mojave is downloading itself when I download it from the App store. The Application folder doesn't have anything like Install MacOs Mojave or ...
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1answer
5k views

How to make bootable El Capitan installer in Mojave? [duplicate]

One of my friends who don't have a fast Internet connection asked me if I could install El Capitan (which is the highest version of OS X that his iMac supports) and I said sure. Today I went to App ...
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0answers
371 views

How to create a bootable USB key of Sierra, from High Sierra?

I have a 2018 MBP running High Sierra. I need to do some troubleshooting on another older Mac that is running Sierra, so I want to create a bootable USB key of Sierra. Unfortunately my High Sierra ...
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22 views

Update MacbookAIR Firmware without original hard disk [duplicate]

I got original SSD broken. My MacbookAir 7.1 got only YOSEMITE Internet Recovery. Now, I've bought a SAMSUNG 970 NVME M.2 disk and the system could recognize it using NVME kext patched but cannot boot ...
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2answers
371 views

How to create bootable installer USB for macOS in Windows? [duplicate]

I purchased a 2008 Mac from a friend. It's now formatted and internet recovery option is not working for a fresh install. I want to create a bootable USB drive in a Windows machine. I am unable to ...
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1answer
482 views

My external boot volume won't startup all my Macs when it should

Because of the mobility of my work I decided to create a boot volume on an external USB-C SSD so that I can run my user environment on a number of Macs (on an iMac Pro (2017) while at work, on a 15" ...
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1answer
46 views

Confusion about creating a bootable flashdrive

I followed the directions to creat a bootable flashdrive for Mac High Sierra. My flashdrive now has the name "Install macOS High Sierra" and it contains the app "Install macOS High Sierra.app". Now ...
2
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1answer
561 views

Creating bootable FreeDOS DOS floppy diskette IMG file for V86 on OSX

I am trying to make a FreeDOS boot disk with OSX that's compatible with the V86 library. I need to do this in terminal (in a bash script). I'm doing all of this on OSX High Sierra. The boot disk I'm ...
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2answers
64 views

Please help: Win7 on external FireWire drive results in “No bootable device - insert boot disk…” error

I'm trying to get Win7 working from an external FireWire drive (Macbook pro mid 2009, OSX El Capitan). I've tried the two tutorials below; the installation seems smooth either way and mac recognizes ...
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2answers
2k views

Macbook Pro Won't Boot off of USB Flash Drive

Model MacBook Pro 2010 6,2 OS X version Yosemite 10.10.3 I used createinstallmedia to format and create an install USB stick. This step went fine. Command used was: /Applications/Install\ OS\ X\ ...
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1answer
54 views

Error image slideshow when booting

I am booting an imac from a USB drive containing OS X 10.13. I get an infinite slideshow alternating between the following two images, which don't seem to coherently convey anything. I am able to skip ...
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54 views

What does one do when MacBook Pro 2017 not recognizing thumb drive needed to boot startup?

I wiped my 2017 MBP's drive at the direction of Apple support, to start fresh on my MacBook and try to eliminate/pinpoint a battery drain issues...now there is no bootable disk on the MPB. I went ...
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0answers
292 views

PowerMac G5 stuck with full fan in OF, no boot devices

I'm working on a PowerMac9,1 (Late 2004 PowerMac G5 with single core) that refuses to recognize any external boot devices on the option/alt boot manager screen, including Debian and the Mac OS X ...
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1answer
25 views

How do you create a bootable drive on an external disk?

I have a MacPro that i want to keep on Mountain Lion, but I'd like to be able to startup off of the latest MacOS. Is there a way to create a bootable drive that uses High Sierra?
7
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1answer
8k views

Unable to install an OS on Mac (prohibited sign)

I had an issue with my MacBook Air "Core i5" 1.6 13" (Early 2015) (MacBookAir7,2) and after repeated problems I decided to wipe the computer and give it a clean slate. I downloaded a copy of ...
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1answer
580 views

Macbook Air 6,2 High Sierra not detecting bootable USB stick

I see this issue reported a lot but all the accepted solutions have not worked for me. I have created a bootable USB stick using UNetbootin with a Debian image. The USB stick is FAT32 formatted with ...
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2answers
45 views

Can I simply make a partition on my Mac, install an OS to it, and boot from it via Startup Manner?

On my Mac, can I simply create a new partition in Disk Utility, install an Operating System to it, such Arch Linux, and then boot from it by holding alt/option during boot (Startup Manager)?
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1answer
1k views

Creating a bootable usb for MacOS from Windows 10 [duplicate]

I've a MacBook Pro and recently my hard drive kicked the bucket. I bought a new ssd drive and installed it in my MacBook. Now I have to create a bootable usb to install latest MacOS. I've spare a ...
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1answer
13 views

Turn a cloned macOS partition into a unique copy for use with iCloud

When copying a bootable partition using the dd command or similar means, the copy runs fine but will use the same IDs as the original. This leads to problems when using Apple cloud services such as ...
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1answer
3k views

Linux on Macbook, dual-boot, without rEFind

Is it possible to install a Linux distribution on a Macbook Pro partition and do a dual boot, without installing rEFind. Thanks!
3
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1answer
157 views

Bootable USB for MacOS Installation

Is it necessary to create the bootable USB from the same kind of device in which you wish to use it. I want to create one for my MBP (for which I have deleted the recovery drive as well) and I have a ...
2
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1answer
274 views

FileVault2 boot volume corrupt after partition deletion

A client has a MacBook Pro Retina with a FileVault2 encrypted boot drive, and the Mac used to dual boot with Linux. Disk Utility apparently showed 4 partitions [Mac HD, Linux, and other 2 small ...
3
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2answers
892 views

High Sierra restored from ISO to USB drive stops at the stop sign

I've restored macOS High Sierra ISO file (downloaded from Torrent) to pendrive (16GB SanDisk's Cruzer Dial) using Disk Utility, however when booting from it (by pressing Alt and selecting the drive), ...
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1answer
36 views

Does mac OS install process erase flashdrive data DURING the install?

It's well-documented that creating an install drive erases the target medium, but what about later, during the install process ? i.e. can I create a bootable flash installer, and then add files to ...
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0answers
100 views

Can the 2009 MacBook Air be booted from USB?

There seems to be a lot of confusion, conflicting information and assumptions about this matter, so I'd like to clarify that this question is specifically about the 2009 model of MacBook Air. I am ...
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0answers
56 views

How to Create Virtual Bootable Thunderbolt Drive

Considering the speed and versatility of Thunderbolt, it can be very useful to boot from a thunderbolt device on a Mac. Would it be possible to use a disk image on one Mac to create a virtual ...
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1answer
2k views

How to create bootable flash drive from macOS High Sierra combo update

I have problem installing macOS High Sierra from App Store. I don't understand what the problem is, but when the download completes it suddenly resets. Then when I open up App Store again it only lets ...
0
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1answer
5k views

Boot from USB drive on a Macbook Pro with Windows 7 installation

Everything I've found says to hold command or option until you hear the boot chime. Obviously I'll never hear that. Nothing I do seems to work, it always goes to Windows 7. How can I boot to a USB ...
2
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1answer
4k views

Partition Type : FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF

I know this has been asked on here before, and similarly to the others I have not backed up my data... I found this duplicate and got lost in the answer and didn't want to mess too much with the ...
2
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2answers
105 views

2011 13.3" MacBook Pro freezing during boot process

I acquired a 13.3" MacBook Pro. The MacBook Pro turns on but freezes after approximately 30 seconds. I installed a good hard drive with Lion and the loading spinner simply stops spinning after it ...
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0answers
129 views

Problem Installing High Sierra (10.13)

I have created bootable pen-drive using installer. I performed following Steps but it failes. Erase the Hard-disk from disk utility. restart the iMac (hold down - Option key) it shows me the pen-...
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2answers
537 views

Problems getting macOS Sierra on a bootable hard drive

I'm trying to get a bootable hard drive with macOS Sierra going so that I can use Octane Render. My Macbook is running macOS High Sierra, which is apparently buggy with Octane at the moment. I ...
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2answers
562 views

Is macOS known to completely crash due to a bad boot drive?

I've got a mid-2013 11" MacBook Air that I fixed up. It had no SSD when I got it but I've been running it off an external USB 3 hard drive fine for about a year and a half including backpacking ...
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2answers
530 views

Way to load an old windows hard drive in boot camp?

I had a windows laptop that bit the dust, but the hard drive works fine (booted up in another pc that wasn't mine as an external disk with my SATA to USB 3 adapter). I'd like to use this drive on my ...
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1answer
309 views

Can't install OS X on blank HDD on a Macbook Pro 2010 13" - Stuck on white screen

I have a 2010 MacBook Pro lying around that I wanted to revive. The problem is that I've lost the original DVDs. The original HDD is now blank and this version doesn't boot via USB. I tried using a ...