Questions about booting, the process of starting a computer and putting it into a state of readiness for operation.

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1answer
17 views

Boot MacMini (2014) from USB

Here is the problem. A long time ago, I set my Mac Mini to dual boot (using Bootcamp, but with some third-party repartitioning). I proceeded to install rEFInd, and eventually, to triple-boot. To ...
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0answers
12 views

Win2usb OS works on PC but not on MBP

I have a MBP with windows 7 64bit Bootcamp installed. I also have refind installed. I have a win2usb 1tb drive with a fresh windows 7 32bit installed and it boots up perfect on a test PC. Refind ...
0
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1answer
35 views

Windows (bootcamp) won't boot from hdd in optical drive bay

I have a mid-2012 MBP and I have done ye standard mod of replacing the original HDD with an SSD and shifted the original HDD into the optical drive bay. I then installed OSX (or should I call it ...
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0answers
16 views

MacBook Pro 15" 2011 stuck in kernel panic on boot

I recently purchased a used MacBook pro 15.4" from 2011. The previous owner said that it keeps beeping 3 times at boot. I figured it's just a faulty RAM bar, which I had a spare one. He also stated ...
0
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1answer
36 views

Grub on Mac via EFI (Linux: /dev/sda1 Darwin: /dev/disk0s1) (MacBook Pro Early 2011 if it matters)

I installed Debian Jessie 8.5 on my MacBook Pro over my old Bootcamp partition (Windows 8.1). I deleted the bootcamp partition with the partition manager in the Debian Installer and created two new ...
0
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1answer
41 views

Hard Disk problems, unsure of how to proceed

A couple of days ago, I closed the lid on my 2012 MBP running El Capitan with Samsung Pro 830; it had nearly no power left. Power ran out while I was closing the lid, I suspect, so I plugged it in, ...
3
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1answer
180 views

Installing Ubuntu 16.04 server on Mac Mini 2006

I have liberated an old 2006 Mac Mini (Model: A1176) from being thrown away and wanted to use it as a Time Capsule for my other Macs. To do this, I want to install Ubuntu server 16.04 LTS to roll my ...
0
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1answer
43 views

How can I safely create a partition to an already bootable drive

I already asked this question on Apple's community forum, right here, so I'll post the answer here if something comes up there first. This is my problem : I recently bought an external drive of ...
0
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1answer
51 views

iMac loading bar gets stuck halfway then reboots

OSX 10.11.5 iMac turns on fine but loading bar gets to just over 50% and then a horizontal bar across the screen shows, then the screen goes black then to white. It stays at white then iMac turns ...
1
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1answer
33 views

HDD corruption after power cutoff

Yesterday a breaker tripped in the same room as my Mac Pro 1,1 running Yosemite (Hacked boot.efi.) All other machines powered up but this one. Attempting to mount via Target Disk Mode timed out, so I ...
0
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1answer
37 views

How to Rescue OS X without Visible Startup Disc?

I need to delete refind but I cannot do it because I bypass it, since I cannot see visible startup disc. I stopped partition process where I tried to erase Linux partition because of infinite time in ...
0
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1answer
37 views

Recover mac mini broken BIOS (mac mini displays nothing)

Well, month ago I gave mac mini (late 2011) to my little brother with new HDD and RAM memory stick. So, being an independent person, he has tried to install Windows on empty HDD (yeah, it's weird) and ...
1
vote
1answer
22 views

Troubleshooting: Apple booting to Prohibitory Sign

So my macbook pro (2012 Intel i5 6gb ram), has been starting up to the prohibitory sign. This sign will kinda sway back and forth between the apple symbol and the prohibitory sign. Every once in a ...
2
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1answer
58 views

To Rescue Nonbooting OS X with Grub?

I had Refind bootloader in Macbook Air 2013-mid. My disk has OSX and broken Ubuntu. Ubuntu messed up my bootloader such that it starts only. I cannot go to grub/refind by pressing ALT, ALT-R, ... My ...
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0answers
33 views

Cannot boot into offline recovery partition in El capitan

I removed Boot Camp, then every time I use CommandR my Macbook Air starts Internet recovery. The weird thing is that the recovery partition is still there. Note my Internet connection is only 512kb/...
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0answers
31 views

Problem Installing Kali Dual Boot on Mac OS X El Capitan

I've tried installing Kali by installing refind, reverting my CoreStorage main partition, resizing it to free 30 GB, and burning the Kali ISO to a USB using the Mac Linux USB Loader. However, when I ...
0
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0answers
33 views

No bootable device, insert boot disk (Windows 7 already installed)

Recently I installed Windows 7 Ultimate via Boot Camp Assistant on my MacBook Pro and everything was going alright. I wanted to share files between my two operating systems so I created a fat32 disk ...
0
votes
1answer
70 views

SSD not working internally

I recently bought a Corsair Force LE 240GB SSD and tried to do a net recovery on a macbook pro A1278 (MacBook Pro 13" Early 2011 with i5) to the latest El Capitan, but for some reason, this is only ...
1
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0answers
55 views

refind : No bootable device (Mac and linux)

I just make dual boot on my macbook pro with linux fedora. when I enter linux on refind menu, it says "no bootable device -- insert boot disk and press any key". I know this question has been ...
1
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0answers
46 views

Cannot boot into OS X after partitoning

I have installed Ubuntu on a Mac Mini, everything works great. I'm able to switch back and forth without any problems. After that, I used GParted in Ubuntu to resize the OS X partition. I then create ...
0
votes
1answer
21 views

Trouble to boot into OSX after install windows 10 on MacBook pro

Before this problem win + OSX worked fine. But I tried to settings>recovery>Advance Startup from windows. after a restart , there is no two boot option . only windows boot option is appear. But how ...
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0answers
15 views

Minimum requirements for Mac Book Pro Core2Duo to boot

I got an older Macbook Pro as a present, without battery and harddisk. Memory is installed, LED power adapter is on. Since the machine doesn't boot, my question is if I have to install harddisk or ...
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0answers
17 views

How can I boot a WinPE USB on a Macbook? [duplicate]

I have a 2008 Macbook Pro with OS X Yosemite and Windows 7 on a bootcamp partition. Yesterday while trying to create another partition (in windows) I accidently converted my basic disk of primary ...
0
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0answers
41 views

Boot Issues After Boot Camp

Note: I apologize about the excessive use of abbreviations, my phone is my only Internet access right now I recently used Boot Camp to install Windows 10 on a partition of my MacBook Pro from mid ...
0
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1answer
51 views

Can't see Apple_HFS partition after using Minitool Partition Wizard

I tried to reduce my partition size using Minitool Partition Wizard on my BOOTCAMP partition (I didn't touch Apple_HFS partition) now I can't see my Apple_HFS partition in Disk Utility. However this ...
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0answers
45 views

Lion to El Capitan upgrade stuck on restart

I'm upgraded an late-2011 MacBook Pro from Lion to El Capitan. The install itself seemed to go fine. It got to the step where it restarts after the install and now it just hangs on this screen. I'...
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0answers
37 views

kernel extension is not always loaded at boot time on OSX

I do have a kernel extension for USB-Devices using IOKitPersonalities. Replugging one of the devices the kext will always be loaded as expected but for devices already connected at startup this ...
0
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1answer
32 views

unable to boot Mac OS after installing bootcamp

Installed bootcamp Win7 on my MBPro with Yosemite a couple weeks ago and both OS's worked fine for some time, until recently the Mac OS suddenly decided it couldn't boot anymore. If I select the Mac ...
1
vote
1answer
91 views

OS volume shows as type 'FFFFFFFF-FFFF-FFFF-FFFFFFFF' after attempting to delete some Linux partitions—cannot log in

I was unable to just delete the partitions left by an old Linux Mint installation by pressing the '-' button in disk utility. I looked online and read that I could reformat them to a journaled format ...
0
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1answer
59 views

2012 Macbook Pro Boots With Startup Sound, But Has Black Screen

This is sorta urgent, since my dad's whole business relies on his computer, and it needs to be fixed. Anyway, it will startup and and make the mac "on" chime. But after that, nothing happens. We can ...
0
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0answers
314 views

'the 'grub-efi-amd64-signed' package failed to install into /target/' during Linux Mint installation on an iMac

I have a Mid 2007 iMac, I've installed rEfind on the mac and the Linux Mint (Cinnamon 17.3) installer on an USB thumb drive . rEfind sees the USB thumb drive, sees grub installed on the key, I boot ...
1
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0answers
63 views

Boot Windows from USB with EFI password

I've created an USB with Windows 10 from where I can boot: Restart pressing option. Select USB EFI partition. Windows starts. When EFI password is active it will be asked when booting pressing the ...
0
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1answer
62 views

NTFS appears every time

Every time I boot my Mac, an "NTFS for Mac OS X" window appears. In the settings I can't change this. Here is the window I have El capitan 10.11.4 I found this: To resolve the issue you need ...
1
vote
1answer
25 views

Mac Pro 2,1 updates and firmware question:will the firmware from the older work with the newer and vice versa?

I'm pursuing an alternative boot drive so i can explore a yosemite or elcapitan environment from my old mac pro 2,1 currently in the last version of snow leopard. (with legally purchased soft ware ...
1
vote
1answer
23 views

Holding Down Control at Startup Manager (Boot Disk Selection) Screen

I noticed that when I hold the control key at the screen where you select a boot disk (the screen obtained from holding down option at startup), the straight arrow below the selected boot disk turns ...
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4answers
1k views

How do I know if I need a new hard drive?

I just received a MacBook Pro from somebody else because it was running too slow. Booting up takes about 4 minutes. I have tried formatting the drive and reinstalling the operating system from ...
0
votes
1answer
100 views

MacBook Air charging light stays amber and does not go green and machine does not boot or even chime

I have an 11" MacBook Air 6,1 from mid 2013 that I found discarded and had restored but now seems dead again. I got the machine with a broken screen backlight and missing SSD. I took it to the Genius ...
0
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1answer
92 views

How to check if secure boot is enabled in OS X?

I got this question is secure boot enabled? but I do not know how to check it in my Macbook Air 2013-mid with El Capitan 10.11.4. How to check if security boot is enabled in OS X?
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0answers
25 views

Mac OSX EFI problems, urgent help needed!

So, I recently did an update on OSX, booted my computer up and I discovered that I the update replaced my EFI boot rom and the SMC with the incorrect SMC, so now I can't use my battery and the ...
0
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0answers
12 views

iMac 24" 2.16 ghz core2duo

I'm trying to install Snow Leopard but iMac won't boot from the install disk. I've also tried booting from a flash drive with Snow Leopard Install on it with no luck. It also will not boot from the ...
0
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0answers
52 views

iMac A1208 - Mac OS X 10.4 Install Problem

I'm a French user and I have a iMac from 2006/2007. I have changed the logic board. It's ok, but i want to do a fresh install of OS, (10.4), but the optical disk is KO. I have the official CD (but it ...
0
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1answer
34 views

Bootcamp cannot find both systems at startup

Something strange happened: I closed my macbook pro while using windows 10 When I opened it again it didn't wake up for a while so I forced it to shut down by pressing the power button for 10 ...
0
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0answers
10 views

iPad mini won't boot

My iPad Mini's battery was drained and I tried to charge it. When I came back I tried to open it but neither the apple logo and charging sign appeared. I tried to press and hold the home and reset ...
0
votes
1answer
22 views

MacBook Pro (2006, A1150) fails to boot

My MacBook Pro (2006, model A1150) fails to boot beyond the white screen AFTER the screen with the Apple logo and spinner. I have tried: Resetting PRAM (doesn't work) Resetting SMC (how can ...
0
votes
1answer
23 views

Is it possible and relatively easy to boot a 2013 MacBook Air from an external drive?

Given a MacBook Air that's working but with dead display and SSD, can I use it as a desktop-only machine with an external monitor and external hard drive? The guy at the Apple Store Genius Bar this ...
0
votes
1answer
120 views

Can't boot into OS X Recovery Mode

I would like to I've recently installed Debian Linux on my Macbook, which required repartitioning the hard drive. I now can't boot into Recovery Mode. Holding down Command+R on boot brings up ...
3
votes
1answer
65 views

Run nrpe on boot w/o a logged in user

Running a Mac mini with server app. (El Capitan 10.11.4 & Server.app 5.1) Installed Xcode, brew, and nrpe via brew. Works fine as such. It's not sensible to have to remote desktop to it and log ...
0
votes
1answer
48 views

Can not boot MacBook Pro 2011

I have a MacBook 2011 running OS X 10.11.5, 16GB RAM, 512GB SSD Drive. Today when I am restarting my computer, I accidentally pressed Cmd+R while booting. Now I try and restart my computer, it shows ...
0
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1answer
121 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). ...
0
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0answers
35 views

How to get rid of the boot gong sound without OS X Installed?

If you google it, there are tons of solution with writing to NVRAM from OS X Terminal, but on my MacBook Air I deleted OS X in favor of Windows. Edit: I already got the tip here to start the Apple ...