No longer able to boot into OSX

My Mac Mini will only boot to Windows XP (I realise this situation is not without some degree of irony).
Bootcamp has been installed for several months and I have had no problems booting between OSX and XP. I have not booted into XP recently only OSX and there have been no problems.
Today I booted up from a shutdown and found that my Mac Mini booted into XP. I wasn't too worried so went into the Boot Camp control panel and selected "Restart in OSX". As Windows was shutting down, I noticed that it was installing several updates. My Mac Mini proceeded to boot back into XP and continued to install the remaining components of whatever updates it had previously been installing.
So I repeated the Boot Camp control panel drill several times...each time, despite selecting to restart in OSX, it would restart in XP.
I then tried holding down the Option key and was duly presented with the two partitions - "Hard Drive" or "Windows"...I selected Hard Drive (i.e. OSX)...and the system booted into Windows! Repeated this exercise but this time trying the second partition (i.e. Windows)...and the system booted into Windows (as you would expect).
I have not done anything to the partitions/hard drive in recent months...the only thing I can think of is that I may have installed some Mac OSX updates earlier today...
Any assistance to help me boot back into OSX would be appreciated (I realise my worst case scenario is a reinstall).
Thanks
Darren

Thanks Stefan.
I followed your instructions which did detect some errors in both the disk and permissins which I have repaired. I then reran the verify to check that there were no more errors. Following that I selected the Mac OSX startup volume and initiated a restart...it still boots into Windows!
Understanding how to use the repair features of the OSX DVD was useful but unfortunately I am still looking for a solution.
As a last effort, I tried rebooting while holding down the 'X' key...this did produce an onscreen log for a split second...from what I can make out in the short time it is onscreen...it appears to be trying to load the mac kernel and there is an error message saying "Read file failed: status"
Any further ideas would be appreciated.
Thanks
Darren

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Mac Pro not able to boot into 64 bit kernel?

Hello,
I've been trying to boot while using the 6 and 4 buttons held down to no avail. This mac pro was bought in 2007 (work computer). Am I not able to boot into 64 bit mode with Snow Leopard? If so, does that mean I can't take advantage of the 64 bit kernel?
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Man, Yes, when I am rendering all 8 cores in Maya, up to 4 gigs of ram are being used. Why is that so hard to believe? I should be able to render in RAM preview in After Effects a whole lot more than i can now without cacheing.!!!!
Is Maya a 64 bit application? If Maya is not using more than 4GB, than you should be talking to the Maya developers.
You should be able to use Applications -> Utilities -> Activity Monitor and look at the "Kind" field. If it says "intel (64 bits)", then it is a 64 bit application.
How many times do I have to state "YES, I will be using more than 4 gigs of RAM per program"?
Why is it the tech people really don't understand how intensive program dynamics like Maya and Blender are,
You are responding to my post, so I'm going to say, I have been working for major computer manufactures since the early 70's working with "Big Iron" computer systems, not PCs, and I most likely know a lot more about how computers work, then many computer users. Please do not tell me I do not understand. I've been working with 64 bit code since the early 90's.
and yet Apple touts their excellence in 64 bit programs like AFX, yet, I can't use more than 4 gb of RAM?
Are you saying AFX (is that After Effects?) is not a 64 bit application yet? If not, then I suggest you talk to Adobe, not Apple.
Just for fun, I wrote a sample program, which allocated a large amount of memory. I ran it on my iMac with is booted with a 32 bit 10.6.2 Snow Leopard kernel. Here are the results:
PID RESIDENT VIRTUAL PageFlt Reclaim COMMAND
54296 4.74G 9.32G 0K 0K tmp
My program has more than 4GB of physical RAM (4.74GB), and a virtual memory size of 9.32GB.
If I use Activity Monitor, I can see that my program is listed with a Kind of "intel (64 bit)".
So if Maya cannot use more than 4GB of memory, it is a Maya problem. Talk to the Maya developers.
We aren't cows Apple. We are people with limited money trying to make it in the world. Not every mac pro user is a business and we don't want too much control.
You are not talking to Apple, just other Mac users. If you wish to tell something to Apple, I would encourage you to use either:
<http://www.apple.com/feedback/macosx.html>
or
<http://bugreporter.apple.com>
Free ADC (Apple Developer Connection) account needed for BugReporter

Can't boot into OSX from different Hard Drive

Hi,
I am having a problem booting into OSX.
I put my own HDD into my Macbook when I first got it and everything was fine, no problems. But recently I took it out to keep my data safe and put back in the old HDD and reinstall OSX Snow Leopard onto the old HDD. After this completed I put back the one I had purchased myself but upon starting the laptop a bar appeared at the bottom of the Apple startup logo and after disappearing the system did not get any further.
I put my my Snow Leopard CD after this to repair and check the disk and then came the errors that It was corrupt and could not be repaired and that I should try to back up as much data as possible.
My question is, is there anyway to boot from this HDD again without reformatting it? and if I do have to reformat it, can I place it into an enclosure to get the data off?
The HDD was working perfectly with no reported errors until I put in the old HDD and made a new installation on it.
Thanks for any help,
Francis

After looking for answers and phoning Apple I have ended up having to reformat. For those who also have this problem:
I have heard that running Disk Repair multiple times works, try booting into safe mode and try fsck in single user mode. My solution was just to connect the hard drive via USB so I could at least get all my data off of it.
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Frank

Need help booting into OSX

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It works through the tv fine via hdmi using bootcamp into windows 8... but for the life of me i cant get it to boot into osx at all. Tried to hold option key on boot but nothing comes up at all. Is it something to do with the hdmi on boot and drivers? Want to sell it as is on ebay but first i need to show pics of it booting up into osx. Any ideas guys? TIA

cfcboy77 wrote:
The unit works fine and boots but display is dead.
You will need to take it in for servicing. If the display is dead then the unit is not working fine.
Cheers
Pete

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It’s been like that ever since.
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I am able to use the machine in Target Mode, so I can extract data from the drives, which is great. Oddly enough, I’m able to use the front-console firewire port to connect to my other Mac in Target mode – with no problems. Also – in Target mode, the fan never goes above the usual quiet self.
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Well, Apple Support does have articles on:
Isolating Issues in Mac OS X
http://docs.info.apple.com/article.html?artnum=25392
won't boot or login
http://docs.info.apple.com/article.html?artnum=106464#symp1
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Mirrored Doors G4. When you pressed the power button, the button would light up, but the computer would not turn on. The fans on the power supply wouldn't turn on.
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http://docs.info.apple.com/article.html?artnum=300552
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Hi everyone,
After about a year or so of experimenting with Hackintoshs with the OSX86 community (MSi Wind and Dell E1405) and an enjoyable experience with my iPhone, I've decided to pick up my first Mac. I ended up with the newer Macbook 2.4ghz. As a veterened PC user who had no problems with Windows, I find OSX to be very user friendly, so this computer has been very enjoyable indeed.
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I did some research online, and most people say the RAM has a problem, but they all never boot or have major issues.
My MacBook boots, detects the proper amount of System Memory in "About this Mac", and looks to be just fine in System Profiler. I also ran the Apple Hardware Test, and it passed without issue. The MacBook has no functionality issues that most people contribute to bad memory (reboots, funny screens). Basically, if it didn't beep 3 times, I wouldn't have thought anything could be wrong. The only other issue I have is that it doesn't turn on the laptop's display when resuming from sleep (which is very annoying), something others are reporting as well.
The DDR3 I got is OCZ Brand. A silly name, but reputable brand. It looks to use the same brand Micron chips as the OEM Apple. A link to the Memory I purchased is here - http://www.amazon.com/gp/product/B001CNR39U
Does anyone have any insight into what could be causing the MacBook to beep 3 times whenever I boot up after a long time of sleep/off?
Thanks,
Jonathan

JStroud wrote:
Hi everyone,
After about a year or so of experimenting with Hackintoshs with the OSX86 community (MSi Wind and Dell E1405) and an enjoyable experience with my iPhone, I've decided to pick up my first Mac. I ended up with the newer Macbook 2.4ghz. As a veterened PC user who had no problems with Windows, I find OSX to be very user friendly, so this computer has been very enjoyable indeed.
I went ahead and upgraded it to a 500GB HDD and 4GB of DDR3 RAM as soon as I got it, and by this, I mean, I booted it up to ensure it worked, then shut it down, and added the new parts.
I don't remember if this happened on the first bootup when OEM spec, but now, whenever the computer has been asleep for a long time (after I get up in the morning, or when I get back from work), I hear three or so short beeps right before the DVD scanning for a disc. I believe this also happens if the computer has been turned off a while. If I restart or shutdown for a "short period" it does not happen.
I did some research online, and most people say the RAM has a problem, but they all never boot or have major issues.
My MacBook boots, detects the proper amount of System Memory in "About this Mac", and looks to be just fine in System Profiler. I also ran the Apple Hardware Test, and it passed without issue. The MacBook has no functionality issues that most people contribute to bad memory (reboots, funny screens). Basically, if it didn't beep 3 times, I wouldn't have thought anything could be wrong. The only other issue I have is that it doesn't turn on the laptop's display when resuming from sleep (which is very annoying), something others are reporting as well.
The DDR3 I got is OCZ Brand. A silly name, but reputable brand. It looks to use the same brand Micron chips as the OEM Apple. A link to the Memory I purchased is here - http://www.amazon.com/gp/product/B001CNR39U
Does anyone have any insight into what could be causing the MacBook to beep 3 times whenever I boot up after a long time of sleep/off?
Thanks,
Jonathan
Sounds like faulty RAM. Get 'em replaced. I tend to trust Kingston and/or Patriot for my memory needs.
If that doesn't work, then try popping in the stock RAM. If those work, then we know the RAM you replaced is still faulty. Keep retrying. If the stock RAM still beeps, send the machine in for repairs.
Btw, a running joke between my friends, we call OCZ ... OverClockZors =P.
deltatux

IMac will not boot into OSX after startup disk switch in control panel.!

I am having trouble with my son's iMac DV SE (graphite) running Classic and OSX (10.3.9). Typically, the computer runs in OS9 as the startup system because most of the kids' software we run is old and uses Classic. Over the weekend, I changed the startup disk to OSX in the control panels and restarted the computer so I could install some new software. The computer will not boot past the gray apple and progress indicator. I have tried resetting the PRAM, booting from the CD and restarting with the options key depressed to no avail. (Can't do a Safeboot either.) I was able to put the iMac into target mode and access the control panels via my laptop and restart in OS9. I thought I had resolved the issue causing the startup problem, but I was wrong. Now I can't get past the gray apple or access the hard disk through target mode (the iMac hard disk does not appear on the laptop's desktop). Is there a way to force the computer back into OS9 other than holding down the option key at startup? When I try this, I get the hard disk icon, but I can't move it off of OSX. Thanks in advance for any help.

Is there a way to force the computer back into OS9 other than holding down the option key at startup?
Holding down the OPTION key will only work if OS 9 is on a different partition than the OS X installation. If they are on the same partition, it won't work.
One way to get it back to OS 9 is to boot from the OS 9 or OS X installation disc. Then set the control panel, or preference pane, to boot from the OS 9 installed on the hard drive.
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So from the beginning what I was trying to do was set up my iMac (27-inch, Late 2013) with boot camp so that I could play some old windows based games that can not be played in Parallels.
I went through the Boot camp process and everything set up just fine.
I had both OS X Yosemite 10.10.2 and Windows 8 Professional running but as I was installing games on to boot camp I discovered I did not allocate enough space and needed to extend the Boot Camp partition.
I used boot camp utility to set OS X as the default start up disk and had it restart
I launched into OS X and used Disk Utility to shrink Macintosh HD another 120GB
Restarted again holding option and launched into Windows
Used the disk management in windows to try and extend the boot camp partition into the unallocated space.
It was not an option to extend it so I tried to create a new simple volume from the unallocated space then delete it and try to extend it again.
It still was not an option.
From there I went to restart again while holding option and the only options I had were 10.10 Recovery and Windows
I tried using disk utility in recovery and Macintosh hd now only showed disk0s2
I tried to verify and it could not verify
I tried to repair and it could not repair.
I put the iMac in target disk mode and using a thunderbolt cable I tried using disk utility from my MacBook Pro (13-inch Mid 2012)
Verifying volume “disk2s2”Verifying file system.** /dev/rdisk2s2
Invalid BS_jmpBoot in boot block: 000000
File system check exit code is 8.Error: This disk needs to be repaired. Click Repair Disk.
Verify and Repair volume “disk2s2”Repairing file system.** /dev/rdisk2s2
Invalid BS_jmpBoot in boot block: 000000
File system check exit code is 8.Updating boot support partitions for the volume as required.Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
This is the same error I got on my iMac
I used terminal diskutil list and got:
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:       Microsoft Basic Data                         799.3 GB   disk2s2
   3:                  Apple_HFS Recovery HD             650.0 MB   disk2s3
   4:       Microsoft Basic Data BOOTCAMP                70.3 GB    disk2s4
I can see that Macintosh HD was disk2s2 but it now shows its Microsoft Basic Data.
I did not format this partition and it was working fine till I restarted the computer after resizing Macintosh HD.
I am not sure what I can do to fix this.
I've found multiple articles about similar issues, but the issue thet they have was that they could not boot to Windows instead of my issue not booting to OS X

****************    Update    *****************
From the Windows Partition using Disk Management I can see that the drive is still labeled Macintosh HD and that all of my data is there.
I have a complete backup so i'm not worried so much about the data.
What I'm most interested in is trying to solve this issue because I'd like to continue using boot camp and I actually work with mac computers and would like to be able to help others if this issue arrises again.

[Solved] No longer able to boot Kernel

Haven't been able to post this since I've been without internet for a time. Since the update requiring manual intervention on /etc/mtab (20th Dec, in the news feed) I have been unable to boot the kernel. Exact output is due to come (will have to try and boot it again then copy it down to get it) but the gist of it is that it can't find the modules, and so is not able to mount any partitions, dropping to an emergency shell.
I've tried using a livecd to access it, and can mount the partitions, but proc will not mount once chrooted into the environment, and without it mkinitcpio seems unable to detect any filesystems.
I suspect it's time for a reinstall because of this, but hope there's a fix that will save me the time and hassle of doing so.
Last edited by Gremnon (2012-01-14 21:31:10)

You have to mount /dev and /proc before chrooting. https://wiki.archlinux.org/index.php/Re … e_you_boot
Other topics about the mismatch between the version of the kernel and the modules seem to be cropping up recently on the forum. Perhaps you will find some answers to your problem in them.
Last edited by lucke (2012-01-14 20:37:43)

No longer able to boot into OSX

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