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

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2
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1answer
255 views

Has iOS Always had Secure Boot?

In Apple's recent iOS Security paper here http://images.apple.com/ipad/business/docs/iOS_Security_May12.pdf They speak about the Secure Boot Chain, my question is has iPhones/iPods/iPads always had ...
2
votes
2answers
1k views

How to distinguish multiple OS X installations from each other in the bootloader?

I read with interest this post about setting up a flash drive with multiple OS X installers. It confirms what I've suspected by my tests with just one OS (Lion). However, a question occurred to me: ...
2
votes
1answer
195 views

Using OS X Lion on a main SL mac - use USB key instead of partition?

I need some advice. I am new and non-techy so please could you help me on a simplified level. I am running Snow Leopard on my Mac which I am happy with. I will upgrade to Mountain Lion later but I ...
2
votes
1answer
6k views

Stop-sign after boot and “Still waiting for root device”

Need some advice regarding a problem starting up my Mac Mini (mid 2011). The other day I was browsing websites when the machine froze with the spinning beachball. So I was forced to power off/on my ...
2
votes
1answer
2k views

What can slow down/How can I speed up the pre-kernel boot steps?

I've got a late 2007 Macbook Pro with 4 GB of RAM and an SSD. I am running Boot Camp and have an OptiBay. I have partitioned the SSD and secondary drive to devote half of each to Lion and half to ...
2
votes
3answers
9k views

Boot from USB on MacBook 1.1 (early 2007)

I’m trying to install Windows 8 from USB on my MacBook 1.1 (early 2007). I have tried booting using rEFIt (on 10.6): Partition my USB key as MBR: the Windows 8 logo fish stays stuck forever. ...
2
votes
1answer
906 views

Reboots hang. Cold Starts Boot on iMac 27" i7 (Mid 2010)

I've been having a problem with my iMac i7 (mid 2010) for quite awhile. Any kind of restart from a software update, or a user selected restart, causing the iMac to get stuck on the restart gray screen ...
2
votes
1answer
1k views

Why can't I no longer boot into my MacBook Air?

My MacBook Air (Late 2011) hangs during startup at the Apple logo, and the spinning cursor freezes. I have booted into verbose mode and it hangs after the following messages: com.parellels.kext.vnic ...
2
votes
1answer
7k views

How do I boot my MacBook Air running Lion in safe mode?

I follow the instructions in http://support.apple.com/kb/ht1455 to boot in Safe Mode, but it appears something different happens with Lion. After holding the shift key when hearing the startup tone, ...
2
votes
1answer
316 views

2009 Mac Mini HDD as an External Drive for a 2011 Mac Mini HDD

I have a unique plan: I have a 2009 Mac Mini mid-2009 with 10.6 OS X. I just got the 2011 Mac Mini with 10.7. But I am planning to use the hard drive from the 2009 Mac Mini with 10.6 OS X as an ...
2
votes
2answers
222 views

Suppress load screen when using rEFIt?

I have rEFIt installed. Is there any way to choose a default OS to launch which would in turn suppress the load screen from showing up when you start up the computer? I'm looking for a way to make ...
2
votes
1answer
689 views

iMac wont startup and won't boot from CD

My 24" 3.06Ghz iMac will no longer fully boot. It constantly gives me the grey "Your machine needs to be restarted" half way through booting. At first I was able to boot into SuperUser mode and run an ...
2
votes
2answers
107 views

Old Mac OS X, cannot get admin access, boot safe or single-user mode, nor reinstall

I have inherited an old Mac OS X 10.5.8 + original install DVD. Model: Power Mac G4 Identifier: PowerMac3,6 Processor: PowerPC G4 (3.2) DVD: Mac OS X Leopard Install DVD Version 10.5 I'm trying to ...
2
votes
1answer
24 views

Can I make a bootable drive for mid 2010 MBP with a Windows computer?

I have a mid 2010 Macbook Pro running Yosemite that I foolishly did a reset on while it was connected to an external monitor that was designated as default in settings And connected to a USB keyboard ...
2
votes
0answers
57 views

Can I keep my Boot Camp partition when moving to a larger hard drive?

I just bought a 512 GB hard drive to replace my 250 GB hard drive, which currently has a Boot Camp partition (pretty vanilla, just running a standard Windows 7 install). I was planning to just clone ...
2
votes
0answers
56 views

MacBook Internet Recovery “?” Folder

With my 2012 MacBook Pro, I'm trying to reinstall Mac OS X (any version that will work) onto a new Solid State Drive that replaced a broken one. I can get to the Internet Recovery screen just fine ...
2
votes
0answers
2k views

iPad 1 won't boot, flashes apple logo

I have recently acquired a refurbished iPad 1 WiFi + 3G. Straight out of the box it wouldn't boot up at all. No logo, or anything. Upon plugging the device into the AC power charger, the Apple logo ...
2
votes
0answers
505 views

How to bless a partition using a custom EFI-boot file with non-conforming directory structures and/or file names?

Is there a guide on how to bless a partition for booting, one that doesn't have the default /System/Library/CoreServices/boot.efi structure? For example, I installed GRUB on the default EFI System ...
2
votes
1answer
1k views

Macbook boots up to grey 'prohibited' symbol

I'm having an issue with my '09 13" Macbook Pro. When I boot it up, it seems to be booting normally until about thirty seconds in, when the Apple symbol is replaced with a kind of 'no-smoking' symbol, ...
2
votes
0answers
355 views

Windows 7 on Macbook Air 1,1 *without* Boot Camp

I'm trying to install Windows 7 on an early 2008 (1,1) Apple Macbook air, on which OS X is not present. The machine is not able to boot directly the win 7 iso, supposedly because it lacks some support ...
2
votes
0answers
143 views

Startup Screen Flashes Pink

During boot, I see the gray screen with the Apple logo, then the entire screen flashes pink for a couple seconds before boot continues normally. Is this a problem/symptom of something? MacBook Pro ...
2
votes
0answers
143 views

Installing Mavericks on USB pen to run on Windows PCs [closed]

How can I install Apple's Mavericks on a pen drive, that I can then plug into a windows machine and boot from it? I did that some years ago with 10.6: I installed it on a 16Gb pen drive and then I ...
2
votes
0answers
262 views

Windows not booting off external disc drive

I'm trying to install windows xp on Lion. This is a little bit complicated, but I was using this tutorial. I got to step 6, which is booting from the Windows XP disc. But it says "no bootable medium ...
2
votes
0answers
696 views

Locked Hard Drive

For some reason a recent reboot resulted in a startup screen with a circle with a slash icon instead of the regular Apple icon. What I tried: Using internet Recovery I used disk utility to fix ...
2
votes
1answer
393 views

How can I clear the kernel extension caches while using FileVault 2?

I have the same problem as this user, Air + Lion : plug in USB, keyboard/pad stop working , where the built-in keyboard and trackpad on my MacBook Pro stop working (and drop out of the USB devices ...
2
votes
0answers
766 views

MacBook Pro will boot only after a SMC reset

I replaced the hard drive in my MacBook Pro (mid-2010) with a SSD one. I installed Mac OS X 10.9. At first the installer wasn't able to find the new SSD drive, because of a error: "SerialATAPI device ...
2
votes
2answers
420 views

2008 MacBook (A1181) won't boot from battery

I have a 2008 13" (2.4GHz) white MacBook that will only boot from mains power. If you attempt to boot from the battery it's as if it's not even connected. Once you get even past the initial startup ...
2
votes
1answer
1k views

Unusually long boot time in non-verbose mode - early 2008 MBP + SSD + Mavericks

Inside my early 2008 MBP (15", C2D 2.4, 4GB, GF8600M) I installed a used Samsung SSD (128GB), did a clean Mavericks install and at first startup, I restored the Applications, Desktop, Documents etc. ...
2
votes
0answers
484 views

Unable to boot into anything but single user mode

Last night I upgraded from Mountain Lion to Mavericks (mid 2009 macbook pro). Everything went smoothly during the upgrade, but it resulted in an extremely long and unstable boot process. If I was ...
2
votes
1answer
317 views

USB Drive with Mountain Lion Boot-Up Problem

I've tried a few ways to restore the Mountain Lion InstallESD.dmg to a USB hard drive to reinstall on my Mac Mini. I've used Disk Utility Restore, Lion Disk Maker and Carbon Copy Cloner. Each method ...
2
votes
1answer
827 views

CoreStorageFamily::unlockVEKs() failed to unwrap the vek, status = e00002bc

I have a filevault2 disk with two partition. One is the boot partition, the other contains data, both are encrypted. Today, after installing the latest 10.8 update (10.8.4 I guess), the computer ...
2
votes
0answers
162 views

Boot Linux from USB drive

I've installed Fedora on a new SATA SSD drive for my MacBook Pro, and when installed into the laptop, it boots perfectly (and runs wonderfully!). However, I want to boot from it externally until I'm ...
2
votes
0answers
2k views

MacBook does not list my bootable USB stick in the boot menu

I made a bootable usb stick with OSX Lion. When starting up my MacMini (which has OSX Mountain Lion installed) while holding option, the USB stick is listed and I can boot from it. But I want to use ...
2
votes
0answers
307 views

How to 'startx' from Single User Mode?

I usually run dwm inside Xquartz on OS X Mountain Lion 10.8. But is there a way to boot into Safe Mode (or a console), then startx or xinit, skipping Aqua? I'd like to boot directly into X11.
2
votes
1answer
2k views

Can't boot MacBook Pro 13" (mid 2010)

The problem occurred after installing the update SMC 1.6 on Apple - OS X Mountain Lion: First for a long time was a white screen and noisy cooler After the system battery icon was crossed out and ...
2
votes
1answer
2k views

MacBook Pro running OS X lion stuck on boot screen

My MacBook is stuck on the boot screen like this: I have tried multiple things such as launching it in safe mode and pressing some buttons as soon as the computer boot logo shows up.
2
votes
0answers
219 views

Boot into Legacy HD option rEFIt

I just synced my rEFIt partition tool and now I get an option to boot from legacy HD when at the moment the only bootable disk is that cotaining Mac OS X. Has anyone got any idea of how I can get rid ...
2
votes
2answers
2k views

2008 MacBook Pro Blinking Folder icon

I have a friend with a ~2008 MBPro which has seemingly hit the hay. I'm not 100% it's 2008, but I think so. It has magnetic power cord--the square one. Anyway, as soon as it turns on, there is the ...
2
votes
0answers
433 views

Windows will not boot after a restart of my Mac Pro, only after a cold shutdown and startup

I am currently experiencing a very strange issue regarding booting into Windows 7 64-bit (installed on its own 1TB HDD). If I restart my Mac Pro, hold down the option key, and select my Windows ...
2
votes
3answers
3k views

Yosemite OSX iMac reboot progress bar stuck at 50%

My son went out of town and, upon returning, turned on his iMac. It rebooted and went into the progress bar typically showing during updates. It goes to the 50% mark, fairly quickly but then stayed ...
1
vote
2answers
118 views

Are “Extensions” something that disappeared many Mac OS versions ago?

On a sheet of Mac keyboard shortcuts for booting, one of them says, "hold down shift while booting and the computer will not load login items or extensions". Am I wrong, or are Mac OS "extensions" ...
1
vote
2answers
2k views

Mac OS: Some apps (mostly java) are very slow at first loading

System: Macbook Pro Duo 2.4Ghz, 4GB, Snow Leopard I first encountered this problem when running eclipse. When I first run it after every reboot or waking up, it painfully takes > 7 min to load. The ...
1
vote
3answers
1k views

New hard drive not recognized

I swapped the original 80 GB hard drive for a new 640 GB Samsung HM64JI hard drive. It is not recognized after booting from the 10.5 Installation DVD on Macbook 2.1 with recent EFI updates installed. ...
1
vote
1answer
2k views

MacBook Pro won't boot, or boots slowly

I have a MacBookPro OS X 10.7.5 from 2011. When trying to boot it has a slow startup or login, with numerious spinning wheels. Sometimes after a long time I can sign into the computer and sometimes it ...
1
vote
2answers
47k views

Stuck at Apple logo during boot. Cannot enter Safe mode. Cannot use Recovery USB

A little background I wanted to create a Mountain Lion recovery USB because I currently only have a Lion recovery USB. While downloading the installer image from the Mac App store, the computer froze ...
1
vote
2answers
4k views

Macbook Pro boots successfully when using hard drive in USB enclosure but doesn't boot when connected internally

Apologies for the long question. I will keep it as simple as I can. Last week my Macbook Pro (13-inch, Mid 2010) started to act strange. It started when I tried to open Skype and received an error ...
1
vote
1answer
1k views

Command+S At Boot Doesn't Activate Single-User Mode

10.6.8. Hold down Cmd+S throughout the entire boot process. It always goes to the regular login screen and starts doing the "stop holding down buttons" chime. Why?
1
vote
1answer
198 views

Do the new macbook pro models (2011) still have a 4 partition limit?

If I remember correctly, the older Macbook pro models (pre 2011) had a 4 partition limit: so, if you tried to install multiple operating systems, you had this limit. Do the new models (2011) still ...
1
vote
2answers
20k views

Mac Pro: Any way to recognize a bootable USB on startup?

I have a Mac Pro 2,1 2x6-Core Xeon@2.66 GHz and am trying to boot from several ISO images written to USB sticks. I have tried the dd-based methods as recommended by Ubuntu, with no luck. In every case ...
1
vote
2answers
660 views

How to remove boot from MacMini?

I have tried installing windows 7 on my MacMini. I followed following steps. Setup went perfectly But while installing I thought of not installing it. So, I just restarted mac mini. Pressed Alt ...