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

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0
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1answer
289 views

Mountain Lion no login field after booting

My 2012 MBA (no bootcamp) just shows a bare splash screen without user avatar nor password field after booting. Now I've seen this problem twice, I can type my password and then hit return on keyboard ...
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votes
2answers
2k views

Accesing files with Mac not booting

Is it possible, say with Lion recovery partition or any other way, to access individual files on the hard drive to copy them before reformatting it to do a clean install? It is not possible to boot ...
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votes
4answers
3k views

Lion won't start after EFI update

I installed the new EFI update for my MBA Mid 2011 (the software updater said it is recomended). The update went fine and restarted the mac afterwards. Then while booting the apple logo turns into a ...
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votes
2answers
7k views

OS X Snow Leopard - Can't boot from HD, Target Mode or CD

Today my computer started getting really slow and freezing alot, so i rebooted. HOwever it won't boot up again, keeps getting stuck on the grey screen. Here's what i've tried: Startup in safe mode ...
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votes
2answers
358 views

How to boot my mac mini up when my iPod Touch is near?

What I'm trying to achieve is if I'm near my mac mini (10 meters) I want to press a button (or something else) on my ipod touch and than my mac mini should boot up. How could I make that? There's a ...
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2answers
3k views

mac: /usr/sbin/diskutil verifyPermissions / hangs in single-user mode

I'm trying to repair my sister's iMac using single-user mode. Since a recent power outage (no surge protector) it won't boot. I used verbose mode to see where it was hanging ("mDNSResponder: adding ...
0
votes
1answer
139 views

Bootcamp load at startup with VMware

I have bootcamp loaded with Windows and would like it to boot and login at startup through VMware Fusion instead of starting manually after OSX 10.6.7 loads. Any ideas on how this functionality can ...
0
votes
2answers
680 views

Boot 2010 iMac from 2007 MacBook Pro's drive?

I am considering purchasing a 2010 27" iMac to replace my 2007 MacBook Pro as my everyday development machine. Ideally, I would like to work on the iMac when I am in my home office and work on the ...
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votes
1answer
96 views

Yosemite freeze at boot - no safe boot + I/O error

Yesterday everything was fine but today my macbook freeze/stuck during the boot. I've done this: check + repair permission (nothing changed) check + repair disk (nothing changed) tried safemode ...
0
votes
1answer
130 views

Yosemite Grey Screen with 3d Party SSD not a trim issue

I have a MacBook 7,1 which i recently installed a PNY 250 SSD and added some RAM. The laptop was running awesome with OSX 10.6.8, lightning fast. Then I installed Yosemite. There was a bit of hang ...
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1answer
127 views

Booting from Windows USB Key Overwrote EFI - Mac No Longer Boots

I'm using a macbook pro running Yosemite. I was trying to create installation media to install linux on an SD card, and I used a USB key that had a bootable windows installation on it. I thought I had ...
0
votes
1answer
59 views

Booting an iMac using a Macbook Pro's internal disk

Suppose I have an iMac and a Macbook Pro. My Macbook Pro is my primary workstation, and when I switch to the iMac I would like my environment to be exactly the same in order to facilitate switching ...
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votes
1answer
55 views

Where does the OS X routing table come from?

Trying to find out where the initial routing configuration for OS X is stored (plist, or wherever), and what happens at startup to read that configuration and configure the network interface(s).
0
votes
1answer
74 views

Macbook Pro 15 progression bar halts then circle spins

We have a Macbook Pro 15 Last 2011. The computer starts to boot, it shows the progression bar, then it disappears and the circle just spins. I have tried safe mode and it just spins. I just ran ...
0
votes
1answer
727 views

How to exit Recovery Mode on jailbroken iPhone

What I've searched so far says that my iPhone had goes to Recovery-Mode (Am I right?) because it stuck on Apple Logo and won't start. What I've tried so far : What is Soft DFU mode, and how do I ...
0
votes
1answer
70 views

If I mess up the EFI System Partition, will Mac OS X be unbootable?

I forgot to make a backup of my EFI System Partition (ESP) and have installed grub onto it. If I happen to accidentally mess up the partition, will OS X be bootable? If not, how would I restore the ...
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votes
2answers
526 views

Apple infinite load. I/O error and even a new HD

My mac mini from the 2011 refused to boot. Apple logo and loading image forever.. I tried cmd+s: Went through all the steps from the applejack, tried fsck -fy, all semmed pok, Tried cmd+v: It ...
0
votes
3answers
64 views

How to copy my Mountain Lion system to another drive?

I'm considering upgrading at long last to Mavericks, but need to feel confident that all my apps & workflows will work properly before committing 100%. I boot off of an external Thunderbolt SSD ...
0
votes
2answers
4k views

How to create a 10.6.8 recovery CD (not clone of the OS or install environment)

Upon Google searching people seem to equate "recovery CD" with full installation. I have seen methods such as using Disk Utility with the Mac HD as the source and a DVD as the destination. This ...
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votes
2answers
2k views

iPhone 5 stuck at Apple boot logo after screen replacement

My girlfriend smashed her iPhone screen. Being technically competent and after looking at YouTube videos of how to fix it I thought I would give it a go. After replacing the screen and moving the ...
0
votes
1answer
420 views

iMac is stuck in a login loop

My iMac is stuck in a login bootloop. After entering the password, I see a white screen for a second and then I am thrown back to the login screen again. I tried the same in safe mode, and it behaves ...
0
votes
1answer
9k views

How to recover my harddrive if I can't see it in the disk utility

I have a 2007 aluminium iMac which I upgraded months ago to Mavericks. Today it locked up and I held the power button to shut it down and cannot get it to start again. I get the flashing folder ? icon ...
0
votes
1answer
426 views

Preventing booting from external media

Is it possible to set up Mac OS X 10.8 (Mountain Lion) on a MacBook Air so that users cannot boot from external media (e.g. a USB memory stick) and cannot restore the OS from the internal restore ...
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votes
2answers
1k views

Mac Book Air mid-2012 completely disappeared disk

I've tried to wake up my Mac Book Air from sleep today, but I got a black screen. After waiting 10 min, I decided to shut it off by holding the power button a few sec. After restarting, I had a ...
0
votes
1answer
168 views

What available methods are there to boot a Macbook Pro

I have a macbook pro 15" early 2011 model, which I would like to install linux on (dual boot setup). However, I don't have an optical drive for it since I replaced it with an SSD. I need some way to ...
0
votes
3answers
2k views

Fix slow startup after utility disk repair on a SSD

I have a 250Gb Samsung SSD 840 series with Trim support enabled installed on a mid-2009 13" Macbook pro running Snow Leopard (10.6.8, 2.26GHz, 8Gb of RAM) and I experience extremely slow startup after ...
0
votes
1answer
2k views

MacBook Pro only stays on for less than a minute

This morning when I woke up my computer it turned off itself. Now it won't stay on for more than a couple minutes. The computer will boot up normally, but soon it turns off again. When it turns off, I ...
0
votes
1answer
748 views

MacBook Pro (2011) bricked after firmware 1.7 update

I allowed AppStore to apply the newest firmware update to my MacBook Pro, which seemed to work fine, until the final restart. At this point, the machine just shut down. I waited for quite a while, ...
0
votes
2answers
21k views

What are next steps when fsck reports “could not be repaired after 3 attempts”?

My Mac Book Pro 13.-" doesn´t get past the grey booting screen with the apple and the spinning wheel (The loading bar appears but when it´s done nothing happens) I have 220 GB in one single ...
0
votes
1answer
848 views

Showing the current boot arguments in OS X

Is there some way to know the arguments passed to xnu at boot from within the system?
0
votes
1answer
344 views

Will upgrading to Mountain Lion allow USB Boot?

One problem I have with my 2009 MBP running 10.6.8 Snow Leopard is that I can't boot from USB (well, I can, but only OS X in certain formats). I would really like to be able to boot linux from USB at ...
0
votes
1answer
1k views

Why does it take so long to boot and shut down my MacBook Air?

It takes about 90 seconds to boot and shut down my MacBook Air. I have got it this year. I have checked numerous things on the Internet but they don't help at all. What do I do?
0
votes
2answers
2k views

Successful jailbroken iPhone ran out of battery and stuck in constant reboot with worn sleep/wake button

I successfully jailbroke my iPhone 3GS 5.1.1 untethered using Absinthe. I had been using the phone for a handful of days. Last night however the phone ran out of battery. A few hours later, I ...
0
votes
1answer
560 views

Unable to boot into 10.4 installation disc

I'm attempting to fix my friends old iMac G5 running OSX 10.4. There are a bunch of updates she needs, but she doesn't know her admin password. I'm attempting to reset it with her 10.4 install disc, ...
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votes
2answers
4k views

How can I boot a 2012 Mac Mini off of a USB thumbdrive with CentOS on it?

I have a 2012 Mac Mini running OS X 10.7.3. On another PC, I have created a USB boot disc with CentOS 6.2 on it. The goal was to install CentOS onto the Mini. The USB drive is MBR partitioned and ...
0
votes
1answer
561 views

Why can I boot into the recovery partition without entering a password even though I have FileVault 2 with full-disk-encryption enabled?

Apple has released this support document for FileVault 2 in Lion which says: FileVault 2 uses full disk, XTS-AES 128 encryption to help keep your data secure. With FileVault 2 you can encrypt the ...
0
votes
2answers
2k views

Slow boot OS Lion on Macbook Pro

I have macbook pro 15.4 2011 (Core i7, 4gb, 500HDD), Lion is running on it. The annoying thing is that the boot time is too much, it takes roughly 70 to 120 seconds for machine to boot and display ...
0
votes
1answer
939 views

Used boot camp for windows - cannot select partition at boot up

I'm used boot camp and created a partition for windows. It gave the usual directions to insert windows CD. I did that and follows the installation instructions. When windows started up I inserted the ...
0
votes
1answer
735 views

OS X Snow Leopard installer hangs

I installed Linux on my MBP. I just told it to overwrite the whole hard drive so OS X is gone. But now I want to go back to OS X so that I can upgrade to Lion. I start up my MBP with the ...
0
votes
2answers
1k views

27" iMac Hangs On Reboot

I've got a 27" iMac 2.93Ghuz Intel Core i7 running 10.7.2. Anytime I reboot (like for some software updates), it gets stuck at the gray startup screen (no Apple logo). If I press and hold the power, ...
0
votes
1answer
28k views

White MacBook hangs at gray Apple screen forever, won't boot to single user, won't mount using Disk Utility. What do I do next?

After a forced shutdown, my white MacBook hangs at the gray screen with the Apple logo and an infinitely spinning progress wheel. I can boot in verbose mode, but I didn't see any particular error, ...
0
votes
1answer
721 views

Restore MacBook AIr (mid 2011) partitions

I just messed up my partions on my harddisk. The situation: Installed windows 7 using bootcamp (NTFS). After that i wanted to ceate a shared partition, on wich both MAC OS and Windows can write. In ...
0
votes
1answer
525 views

macbook with mac OS 10.5.- not booting past apple logo

For the past few days, my old macbook told me that it wa not charging, although the plug was plugged in. Unplugging it would just stop the computer from working, so the battery would really not ...
0
votes
2answers
278 views

2008/9 Mac Pro wont turn on, front pannel LED is constant white

My mac pro doesn't want to start up. I purchased some new memory installed it (and cleaned up some of the dust on the inside of the box) and now the machine won't boot up. I get a constant white ...
0
votes
1answer
659 views

No SIM Card installed error in iPhone 3g

My device iPhone 3G shown " "No SIM Card installed" 'insert a valid SIM With no PIN lock to activate iPhone' " It is in Emergency mode so please give me a solution if there is..? It comes when i am ...
0
votes
2answers
10k views

How do I uninstall rEFIt?

I installed rEFIt in order to install boot camp via a USB key. Now that Boot Camp is installed, I no longer need rEFIt, so I'm trying to uninstall it. I followed the uninstall directions for ...
0
votes
0answers
11 views

BootcacheControl.playlist not found, MacBook does not boot anymore

Booting a MacBook with Snow Leopard installed will suddenly stop with the message: Unable to open /var/db/BootCache.playlist: 2 No such file or directory Booting in single-user mode, I can see ...
0
votes
1answer
23 views

How to run a sudo command on mac? .. problem with mysql server

I 've installed mysql server with brew, and i need to run manually this command each time my computer start to make it work with an application that I can't edit. sudo mkdir -p -- /var/run/mysqld/ ; ...
0
votes
0answers
22 views

Drive name red in Disk Utility: Core Storage Drive offline. How to bring back?

Yesterday, my mac wouldn't boot up. When I restarted, I could get the whole way to the User login screen. No matter what user I chose, the boot bar would get about 1/3 way finished and I would get ...
0
votes
1answer
60 views

How to run Apple Hardware Test with broken keyboard?

mid-2011 13" MBA running Yosemite Coffee spill has left keyboard of mid-2011 13" MBA non-functioning. Even power button doesn't work, I boot by shorting the two solder points on logic board. I've ...