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Questions tagged [bootable-disk]

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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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0answers
31 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
41 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
113 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 ...
2
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1answer
93 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 ...
2
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1answer
49 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
300 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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1answer
4k views

Persistent Ubuntu boot USB: macOS Sierra

Short of figuring out how to achieve a dual boot configuration for my mid-2012 2GHz i7 MacBook Air to boot to a Linux OS, I've made a "live" boot USB with Ubuntu 16.04.2 LTS using UNetbootin. I would, ...
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0answers
16 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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0answers
104 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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1answer
44 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 ...
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340 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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2k 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 ...
2
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1answer
3k 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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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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0answers
304 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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0answers
20 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
326 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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2answers
54 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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1answer
457 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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2answers
5k views

OS X Installation USB not detected in Startup Disk selection

I have a MacBook Pro 8.2. Recently I have download Sierra and Yosemite, and am currently running El Capitan. And I created a bootable USB for OS X Yosemite with DiskMaker X 6, in case Sierra goes ...
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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!
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2answers
502 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 ...
2
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1answer
430 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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1answer
544 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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1answer
1k views

Macbook Pro does not recognize bootable USB drive

I had problem with the hard drive of my 13" MacBook Pro 2009. I decided to use the opportunity to upgrade to an SSD. I replaced it with a 480GB SSD. Following this article: Create a bootable ...
0
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1answer
644 views

OSX install DVD showing up as EFI boot on start up

My brother's Mac Pro somehow has all of its utilities missing. Its guts have been taken out. I don't know how this happened, but I'm trying to fix that by creating a Lion DVD or bootable USB. I ...
0
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1answer
915 views

Edit info.plist to make bootable USB

Running OSX El Capitan 10.11.6 and trying to make a bootable USB for windows 7 bootcamp on my MacBook Pro. I disabled the SIP by using Terminal in Recovery Mode but I still cannot replace or edit the ...
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2answers
781 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
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 ...
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1answer
37 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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3answers
37k views

Mac won't boot from USB drive: Prohibited sign

I tried to clean install OS X El Capitan on my Mac, but it won’t boot from the USB drive. Here are the steps I took to create the bootable USB drive (I have a Mid-2014 MacBook Pro with Retina Display):...
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0answers
50 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
239 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
24 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?
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3answers
4k views

How to create linux USB discs that do work on Apple Macs?

It seems that there are several problems releated to incompatibilities between Apple-EFI and UEFI that do prevent Apple users from easily using USB drives to install or even run other operating ...
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1answer
7k 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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2answers
43 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 ...
0
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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
23k views

How to create a bootable Ubuntu USB stick using OS X 10.10.2

I have downloaded the ubuntu-14.04.2-desktop-amd64.iso. How do I create a bootable Ubuntu USB stick using my Macbook Air which is running OS X 10.10.2? I cannot create a bootable CD, since the Air is ...
3
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1answer
151 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
246 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 ...
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1answer
1k views

Image files made with Disk Utility creates parent folder

I'm using OS X 10.5.8., updated from 10.5.2. which I installed from the two installation DVDs that came with my MB404 MacBook. I recently found my original 10.5.2. installation DVDs, which I thought ...
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3answers
48k views

How to make a bootable disk from an image with Toast?

I read contradictory information, some say it’s possible, some say it’s not and Apple’s Disk Utility is required. I prefer to use Roxio Toast for its multi-purpose but I don’t want to waste blank ...
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1answer
3k views

Installing El Capitan from a bootable DVD

I have El Capitan on a bootable DVD. I restart my Mac and hold the option key until the disks come up and I choose EFI Boot (name of the disk is different than what it shows at the time of booting). ...
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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
90 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
51 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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2answers
6k views

Failed to make bootable USB drive and now I can't even format it

I want to do a fresh install of Yosemite and I got a brand new 8GB flash drive and I followed this tutorial. I formatted the USB drive and was copying the Yosemite installer, however I got the ...