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

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0
votes
1answer
558 views

Can I “restore” an iso image to my hdd to be bootable?

I removed my superdrive a while back but now I want to install a linux partition on my macbook. I installed rEFInd as my boot manager but now I need to boot into the arch linux iso. Normally I would ...
2
votes
2answers
117 views

My MBP will not startup properly!

I have a Macbook Pro 2008 aluminum 15-inch that runs on OSX snow leopard. Whenever I turn on my laptop, it boots up (apple logo and spinning wheel appears), and then goes into a loop of blue screens. ...
1
vote
1answer
62 views

Start a process at boot

I need dnsmasq to run at boot on Mavericks. I've got dnsmasq working fine. I've created a .plist file in /Library/LaunchDaemons with the following contents: <?xml version="1.0" ...
0
votes
0answers
27 views

iPhone 4 doesn't power on, but is recognised by PC

My fiancée's iPhone 4 doesn't seem to want to boot. I originally thought it was just not charging, but my PC recognises it when I plug it in via USB. Might just be that the USB logic (e.g. FTDI) ...
9
votes
4answers
60k views

How to install OSX Mavericks in VirtualBox

I have been trying to use Hackboot to install OSX Mavericks in VirtualBox, and using an ISO image created by following the steps at How to create bootable ISO for OS X Mavericks The steps I have ...
1
vote
1answer
632 views

Partition corruption, still can see files in single user mode, would like to retrieve files

The problem started after forcing the mac to shutdown. Since then, when trying to boot, it stays stuck at the grey apple with spinning wheel. I've tried a few generic things to be able to access my ...
0
votes
0answers
190 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 ...
1
vote
0answers
109 views

WD My Book for Mac External HD won't boot any more

I bought a 3T WD My Book for Mac external HD and use it with my iMac with OSX 10.8.5. I partitioned it into 5 partitions. There are three 30G partitions and two larger ones. The largest is used as a ...
0
votes
0answers
213 views

Why doesn't the boot menu show my USB drive with the Mavericks installer?

I have downloaded Mavericks and through Disk Utility installed it to a USB drive. When I boot my new Mac, I only see the Recovery drive. Don't have the original Macintosh HD and doesn't find the USB ...
1
vote
0answers
379 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 ...
1
vote
1answer
48 views

Why won't my Mac start?

I have a MacBook Pro 13 inch and something really weird happened. Earlier today it worked perfectly fine, a few hourslater I tried to turn it on and it was stuck at the startup. It has a little ...
2
votes
3answers
2k views

Does not boot (endless spinning)

A friend of mine has forgot her password to a newly bought Macbook Pro, Lion. I've reset the password like described here by booting to single-user mode and deleting /var/db/.AppleSetupDone The Mac ...
2
votes
0answers
113 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 ...
1
vote
0answers
146 views

Cannot boot from external DVD

I have changed my internal DVD with Crucial m4 SSD and I have put the DVD in to an external case. I'm trying to update the SSD firmware and install Mavericks but I can't boot anything except MAC OS ...
3
votes
1answer
2k views

Can I boot Linux (any distro?) from USB on a MacBook Air that has no hard drive?

I've a MacBook Air that has burned out three hard drives from OWC. The original drive is gone somewhere, and it no longer makes sense to purchase a replacement. The rest of the hardware is in good ...
0
votes
2answers
99 views

Why my macbook sometimes plays a chime when booting/rebooting, sometimes it does not?

I don't observe any specific pattern of this behaviour. Strangely, sometimes when my macbook reboots/boots, it plays a chime sound. And often in other cases, no chime sound is played. So what ...
3
votes
3answers
2k views

Installation stuck at grey boot screen on Macbook Pro 4,1 (Early 2008)

I would appreciate any help you guys can give me since I would really like to upgrade my laptop to Mountain Lion. Computer: Macbook Pro 17" 4,1 (Early 2008) RAM: 4 GB RAM Hard drive: 128 SSD Hard ...
3
votes
4answers
18k views

How can I disable Safe Boot or the Shift Key?

After a spill on the keyboard of my unibody MBP 17", the ⇧ key reports as always on. Under Windows (BootCamp) and Linux (LiveDVD) I can easily get around the problem by using an external ...
1
vote
0answers
411 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 ...
3
votes
1answer
241 views

How can I tell OSX NOT to mount some of the drives in my computer?

I have a Mac with a Windows drive that I occasionally boot to. Most of the time, I'm using the Mac, and the Windows disk always mounts and shows up on the desktop. I would like to keep it from showing ...
2
votes
0answers
307 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 ...
0
votes
1answer
159 views

Is it possible to use FileVault 2 on a non-primary boot partition? (Dual-boot setup)

To be more specific yet still brief, I'm looking to use Filevault 2's entire partition encryption, for a partition other than my primary boot partition. Ideally, I want to have 2, or in the future, ...
1
vote
2answers
2k views

How do I restore a Windows 7 DMG file to Boot Camp (and make it bootable)?

My iMac's HD died last week, and so I was unable to access OS X (I had a Time Machine backup of it though). Fortunately I was able to boot into the Recovery HD and use Disk Utility to backup Boot Camp ...
0
votes
1answer
176 views

Shift key damaged how to disable it at boot?

I recently spilled water on my computers keyboard, and as a result the left shift key seems to be stuck in the on position. This means that the system always boots into safe boot unless I hold down ...
1
vote
2answers
2k views

Macbook Air not waking up from Suspend/Sleep with rEFInd boot manager installed

Having installed both rEFInd 0.6.10 (updated to 0.6.11) via its install.sh and Ubuntu 13.04 on another partition I can now choose on a MacBook Air to boot either MacOS or Linux. When running MacOS ...
2
votes
1answer
1k views

My MacBook died and won't start anymore

I have a 6 year old MacBook. It suddenly died last Sunday. When I started it the battery was charged to 100% - some minutes later it was at approximately 20%. Then the screen suddenly turned black and ...
0
votes
1answer
255 views

iMac 27'' mid-2011 stuck on startup (grey screen)

Okay, so I'm having the dreaded grey screen on my iMac - precisely : i'm having it doing a normal startup i'm having it trying to boot from recovery partition i'm having it trying to boot for ...
2
votes
1answer
393 views

Trapped: MacBook always shuts down during EFI SMC Update 1.8. Can't boot. How to remove updater from boot routine?

MacBook Pro i7 Mid-2012 (MacBookPro9,2) running Mac OS X 10.8.5: Downloaded the "offered" EFI SMC Update 1.8 through the AppStore Updates. MacBook restarted, grey progress bar appears w/ spinning ...
0
votes
0answers
56 views

USB Keybard not activated at boot

I've got a Mac Mini with Mavericks with a WASD Keyboard v2 (ISO layout) attached. When I boot the system the keyboard is somehow not recognized by the OS (i.e., I type and nothing happens). The ...
1
vote
2answers
684 views

Understanding kernel panic error log

My MacBook Pro worked all normal when all of a sudden it went black. It tried to reboot itself but immediately produced a kernel panic. From then on I was never able to boot again. I could only enter ...
1
vote
1answer
177 views

My 2011 MacBookAir boot screen does not list MBR USB flash drives anymore – Why, and how to list them again?

I have a MBR-formatted, bootable USB flash drive with GRUB. I have tested it successfully on other computers - one with BIOS and another one with UEFI. I usually boot my 2011 4,1 MacBookAir with that ...
2
votes
3answers
6k views

MacBook Pro not booting after update to Mavericks

I installed Mavericks (upgrading from Mountain Lion) on my MacBook Pro (from early 2011) and the install seemed to go fine. However, this morning while I was working on PowerPoint, it switched off ...
1
vote
0answers
2k views

Booting problem after Mavericks installation: BootCache.playlist: 2 No such file or directory

I have updated my MacBook Air 2011 from the App Store to Mavericks but after the installation it doesn't boot up (spinning grey ball). Safemode or a new installation didn't help and verbose mode ends ...
0
votes
1answer
146 views

Time machine restore failed to fix boot

After connecting MacBook Pro running 10.8 to video project, the system crashed and after restart it booted into recovery (OS X Utilities). I tried to fix the problem with checking disks and disk ...
0
votes
1answer
84 views

Mavericks install: “there was a problem… try reinstalling”, third time in a row

Mavericks install worked at first. I was able to enjoy Finder tabs and such. I updated Tuxera for Mac to 2013 and rebooted, then I was stuck at an endless spinner. I tried disk repair, safe mode, same ...
0
votes
1answer
903 views

Remove 2nd partition, reclaim space

If I have a dual booting computer (os x 10.7 and Linux), and would like to remove the Linux partition and return it to one single large disk running os x, how is this done? Is there risk to messing up ...
0
votes
1answer
331 views

How to run OS X from DVD or USB stick?

I would like to have a safe "Linux-like start/boot from DVD or USB stick" environment. How to do such security thing for the latest OS X (10.9 Mavericks)?
0
votes
0answers
343 views

Can't use Boot Camp because startup disk must be Mac formatted

During the Boot Camp installation by mistake I erased the Macintosh HD partition, but before continuing the installation of Windows I stopped the process. Using a bootable live CD I saw that all the ...
0
votes
1answer
158 views

If I update to Mavericks, will I be able to boot from USB?

running a late 2009 (5,5) Macbook Pro. I am currently unable to boot from liveUSB disks, but would really like to. I know that newer macs can do this (Macbook Air, new MBPs), but is it a hardware or a ...
0
votes
2answers
973 views

Macbook Pro won't boot into OSX (circle with line through it), but Windows works fine

When I try to boot into OSX, after 30 seconds or so the Apple symbol is replaced by a circle with a line through it. If I try single user mode, it stops at a certain point before booting entirely and ...
1
vote
0answers
69 views

Encrypted Mountain Lion is not booting, showing OS X utilities screen

My FileVault 2 encrypted OS X Mountain Lion setup is not booting, but instead showing the OS X utilities screen. I have two accounts, User1 and User2. The encryption was enabled with User2's login ...
0
votes
0answers
44 views

Recover from deleting all partitions. I don't want to keep OSX

I've tried to install Fedora on my 2007 Mac Mini, using rEFIt to boot from the USB. Thanks to Fedora's horrific excuse for a patitioner, I believe I've deleted all the partitions on the HDD. I had ...
2
votes
1answer
258 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 ...
0
votes
0answers
128 views

rEFInd hangs on boot and shell launch on a Mac Mini

I have burned the rEFInd 0.74 USB image to a pendrive and booted a Mac to it. The boot manager's menu works fine and shows boot icons for all the OS installations I have but when I try and boot to a ...
1
vote
1answer
852 views

iMac Startup I/O Error Despite Successful Disk Repair

My Early 2008 iMac with OSX 10.8.5 no longer boots beyond grey screen with spinning gear. Verbose mode shows a load of I/O errors. Disk Verify/Repair run via recovery partition completes successfully, ...
1
vote
1answer
1k views

Snow Leopard installer ISO on USB flash drive

I have the setup ISO file for my Mac OS X Snow Leopard. I need to be able to boot this and install it to a USB drive (from a windows pc by booting the USB drive). I can't run it in a virtual ...
1
vote
3answers
736 views

How to enter boot menu without command key?

My Macbook air has a keyboard issue, the Z key does not work except upon startup where it becomes stuck for several seconds. This interferes with opening the boot menu on startup, because it detects ...
0
votes
0answers
87 views

Running Fedora 19 alongside OSX 10.7

for some time now I have tried to install Fedora 19 on my MacbookPro 2,1 C2D, but I simply can't make it work. Here is how I tried: Getting Image of Fedora and make a bootable USB drive with Mac ...
0
votes
0answers
87 views

Cannot boot Ubuntu from USB 2.0 on OS X

I'm running OSX 10.7.5 on a Mac Mini 2012. I'm trying to boot Ubuntu, but keep running into issue, after issue. This is what I have done: Got an extra external hard drive an formatted to MSDOS with ...
2
votes
1answer
27 views

FileVault and scheduled boot

After I have enabled FileVault the computer won't boot anymore at the scheduled time. Is it normal or has something gone wrong? If it is normal, are there any workarounds?