Questions about booting, the process of starting a computer and putting it into a state of readiness for operation.
0
votes
1answer
260 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 ...
0
votes
1answer
21 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 ...
1
vote
1answer
304 views
MacBook Pro Lion crashes after a progress bar boot
Basically my MBP started giving me messages (out of nowhere) about how my Memory was too low and that I needed to shut down a few programs before continuing. In the end I was left with only Finder ...
5
votes
4answers
1k views
Why have 5 different iMacs developed corrupt OS X partitions when the physical drives are fine?
I'm a tech for my local school district and we are having some problems with our iMac Multimedia Lab. Over the past nine months, 5 of the 22 iMacs have suffered from filesystem corruption. The only ...
0
votes
1answer
25 views
Mac Pro: Kernel panic during HDD boot and DVD boot
I have a 2007 Mac Pro (OS X Tiger 10.4.11) that cannot boot up anymore since a few days. I see the grey screen with the apple logo and the rotating circle. After a minute or so I get a kernel panic. ...
0
votes
1answer
30 views
What is the simplest way to dual-boot linux?
I am looking for the most straightforward way (both in initial setup and in maintenance) to set up a second partition on an OS X machine for (either) Debian or Ubuntu. I won't be running any other ...
1
vote
2answers
58 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 ...
3
votes
1answer
257 views
Macbook Pro Early 2011 15 inch, Mountain Lion Booting issue
My Macbook Pro is not booting normally. I tried many options but no success. If I try to recovery mode or try to boot from USB, a blue screen appears. So I can't do fresh install. I checked hardware ...
0
votes
0answers
15 views
Intel bootloader for Tiger
I'm trying to boot my 2007 MBP into Tiger 10.4.11 from a backup of a PowerBook G3. The partition doesn't show up in the Startup Disk preferences, but bless will work with it. On closer inspection, ...
0
votes
1answer
44 views
Boot into Safari-only mode in Mountain Lion?
In Lion, you used to be able to boot into a Safari-only mode. Where did that go in Mountain Lion?
0
votes
0answers
10 views
Target disk mode boot flag?
I recently made a Hackingtosh, and I really need to interface with it using Target Disk mode. Is there a boot flag to be able to enable this?
It's running Lion.
4
votes
3answers
428 views
Renaming the startup disks shown during boot
I'm dual booting OS X (Lion) and Arch Linux, and when I hold down "option" during the boot process, I am presented with both of my startup disk options (i.e., OS X and Linux); however, they are named ...
2
votes
1answer
242 views
Apple powerbook G4 17" Trying to install Linux
I believe followed the directions on how to create a bootable USB drive from the Ubuntu website. My question is how can I get my Powerbook to boot from the USB drive? I tried doing the ...
1
vote
3answers
1k 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
2answers
9k 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
1answer
721 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 ...
0
votes
1answer
156 views
Macbookpro can't recognize bootable usb at boot time?
I have an old macbookpro:
Model Name: MacBook Pro
Model Identifier: MacBookPro6,2
Processor Name: Intel Core i5
Processor Speed: 2.53 GHz
Boot ROM Version: MBP61.0057.B0F
I created a ...
0
votes
2answers
311 views
Trouble with Memtest86 4.0a on 15" MacBook Pro
I have a 15" MacBook Pro late 2011 (MacBookPro8,2) It has a 2.4Ghz Core i7 CPU and 4GB of stock RAM. I'm trying to run Memtest86 4.0a from boot (Memtest86+ does not work.)
After about 5 seconds into ...
0
votes
3answers
754 views
After updating to Lion, can't re-install Snow Leopard or Lion
Here is my situation: I have a 2010 iMac that came with a Snow Leopard disc, which I installed. Then, when Lion was released, I upgraded to it. However, yesterday, I had to erase my entire HDD ...
0
votes
1answer
488 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
573 views
MacBook Pro Mid 2009 does not boot without resetting system management control (SMC)
Today i started my macbook pro and after some seconds it stopped working (just turned). I was not able to start it again. After some apple support search I found a page that described how to reset the ...
0
votes
1answer
481 views
Macbook won't boot, possibly HDD issue
I am posting this for a friend who is having this problem but obviously can't post this himself as his computer will not boot up. He started having problems after a video game crashed during online ...
4
votes
3answers
3k views
Mac won't boot: Way to mount drive and delete one file?
My macbook is currently a brick. I added a /etc/launchctl.conf file that must be malformed. The OS now crashes even when attempting to start in safe mode:
"launchd System bootstrapper has crashed: ...
0
votes
1answer
195 views
Macbook pro boot with kernel panic - can't perform kext scan
I was trying to swap command and option key for my external keyboard following the instruction in
http://hints.macworld.com/article.php?story=20110529094802391.
When I'm done with change and I ...
0
votes
1answer
61 views
Is it safe to reformat drive during Recovery Mode install?
I've inherited an almost brand new 13" Macbook Pro Retina. I'd like wipe the hard drive clean and start with a fresh install of Mountain Lion. I've done this a million times before... but never while ...
1
vote
0answers
126 views
How do I unfreeze my iPod Nano 4th Gen?
tl;dr -- My iPod hangs on the boot screen (black background, silver apple logo). When I try to restore it (on both my Virtual Windows XP and on a Mac laptop), it'll restore fine, but when it reboots ...
0
votes
0answers
43 views
Installing Leopard on a PowerBook G4 12"
So I stupidly bought a USB on eBay with leopard on it to install on my PowerBook G4. Finding out afterward that I can't boot to a usb on this 12" 1.5Ghz 512MB with combo drive PowerBook G4.
So I ...
-1
votes
2answers
2k views
iPhone 4 Restore loop 6.1.2
OK so the other day I tried to restore my iPhone while it was jail broken on ios 6.1.2. Well it was a terrible idea.... NEVER DO IT. any way i have worked on trying to restore it back to normal but it ...
0
votes
1answer
327 views
restore Mac OS Mountain Lion to factory settings without discs or time machine backups
I installed XCode 3 on Mac OS Mountain Lion 10.8 and now I am getting the Apple BSODs.
Can I do a system restore without having the discs as I seem to have nothing to use, also I have no Time Machine ...
0
votes
1answer
42 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 ...
3
votes
1answer
1k views
Upgrading new Mac Mini to have SSD. Do I have to buy Lion, or can I just re-download from App Store?
EDIT: The accepted answer below works, but I can also confirm that just booting the stock machine and visiting the App Store, you can just re-download it and make a boot USB drive before swapping out ...
0
votes
2answers
205 views
Macbook Pro not Starting
I have a MacBook Pro and from the last week I have been unable to turn the machine on properly. First it displays the Apple logo and shows this message
I've done a lot of research and tried things ...
1
vote
3answers
1k views
MacBook Pro won't boot into safe mode or from DVD
Specs: MacBook Pro 7,1, 2.4gHz Intel Core 2 Duo, 4GB DDR3 RAM, 500GB HDD with Snow Leopard v10.6.7
I'm having a weird problem. I want to boot from the install disk to run Disk Utility because I'm ...
0
votes
1answer
61 views
Notification area icons are sometimes invisible in Windows 7 (Boot Camp)
For some reason, sometimes my notification area icons are invisible in Windows 7 64-bit (Boot Camp, on an iMac mid-2010), as seen in this screenshot. Clicking on an invisible item does nothing. ...
0
votes
2answers
55 views
MacBook Pro Sluggish boot
My MacBookPro has been extremely slow at the startup. Is there something similar to Window's System Registry that I can see all the boot files and uncheck what I don't need?
I'm running Mac OS X ...
0
votes
1answer
129 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 ...
5
votes
2answers
6k views
What can be done to fix a 2011 iMac that will not boot past the white screen?
I have now tried opening the iMac and removing the cables to the SSD, it still gets stuck on the white screen. I tried again, removing the cables to the HDD as well and the same thing occurs.
No idea ...
1
vote
1answer
90 views
How do I get into boot options with a non-mac keyboard?
I boot my mac mini, hold down alt on my non-mac keyboard, but it does not go to boot options.
How do I get to boot options with a non-mac keyboard then?
0
votes
1answer
149 views
Dmesg shows no timestamp
The sudo dmesg command works fine, but shows no timestamp. Is there any way to get it to show the timestamps as well?
0
votes
2answers
1k views
MacBookPro stopped booting what should I try?
My 2008 MacBook Pro suddenly stopped booting the other day and now the screen looks like this each time it attempts to boot:
The boot time sound still happens, but I just see the dodgy pink with the ...
0
votes
0answers
48 views
Slipstream updates into an OS X install disc?
Is there a way to slipstream (like in Windows) all updates into the install disc for Mac OS X 10.6 Snow Leopard?
I found a previous answer here, but the provided link doesn't seem to work any more...
...
2
votes
0answers
43 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 ...
0
votes
1answer
102 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 ...
1
vote
2answers
1k 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 ...
2
votes
1answer
90 views
FreeBSD Install DVD corrupted my Mac OS X harddisk
Recently, I have tried a FreeBSD 7.4 i386 Install DVD, just to see some screens of FreeBSD on my Mac mini Intel 2006. I was going to see (to remember) just several dialog screen of and perhaps I would ...
0
votes
2answers
2k 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
129 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 ...
1
vote
0answers
89 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.
0
votes
2answers
150 views
Resetting MBR on iMac
I installed Ubuntu on my iMac (partially successfully) I had rEFIT installed but it did not recognize the Ubuntu installation.
I removed the partition and rEFIT and now when I attempt to install ...
0
votes
1answer
219 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, ...
