I've seen something about com.apple.boot.plist, but I need a little more further information. After type: Code:
ioreg -p IODeviceTree -w0 -l | grep firmware-abi
I receive the following from terminal:
Code:
|| "firmware-abi" = <"EFI64">
Looks that I am able to run 64-bit kernel.
My computer is a white macbook early 2008. Core 2 Duo T8300 2.4GHz.
I have been trying to boot into 64-bit kernel in Snow Leopard on my Late 2008 Aluminum MacBook (2.4 GHz), but it is not working. It is running the 64-bit EFI firmware and is updated to 10.6.1.
View 9 Replies View RelatedSo, with Snow Leopard, there is a 32-bit kernel, and a 64-bit kernel. Correct?
As I understand it, it will boot into the 32-bit kernel by default, but if your hardware is supported, you can select the 64-bit kernel.
My question is - where is the list of supported hardware, and how do you select the 64-bit kernel?
My confusion comes from several posts and various articles which all say the first-gen aluminium iMac has a 32-bit EFI, and therefore can only boot into the 32-bit kernel. But I've just downloaded an app called Startup Mode Selector, which shows you your system config, and it says I have a 64-bit EFI.
Yes you read that right. Your brand spanking new MBP will use a 32-bit kernel as default.
You can force 64-bit kernel but some of your hardware will not be working.
So all that marketing crap about the benefits of 64-bit etc are all B.S.
I don't want a million threads about how this will not effect the running of 64 bit apps, etc. because it will. Your 64-bit app will run but it will not be able to address more than 4Gb of RAM.
There are also many more advantages to having a 64-bit kernel.
Just wondering what the thoughts everybody was having regarding loading Snow Leopard with a 32bit kernel (i.e. "normal" install) or 64 bit kernel (i.e. holding down the "6" and "4" keys during reboot).
View 8 Replies View RelatedIs there something about the hardware on this iMac that will not let SL run in full 64 bit glory? It loads 64 bit kernel, but did that in Leopard as well. SL loads the 64 bit kernel but not the rest of it... of course holding the 6 and 4 keys results in no joy. So now I suspect it is not just the CPU that must be a 64 bit ready chip but the rest of the hardware must be like wise optimized.
View 5 Replies View RelatedI am pretty new to the forums but I installed snow leopard on an 2008 iMac 2.4 ghz, 3gb of ram and 250gb hard drive on September 1, 2009 and had no problems shutting down.
Then on Wednesday when I shut down it goes into a kernel panic and tells me to restart. When I go into the other user account it does not do that. I have a picture of the error log that i got when I started the computer up to submit to Apple. Can someone please help.
I have reset PRam, repaired permissions, and reinstalled Snow Leopard but recovered it from a Time Machine Backup. I do not know what to do.
First the bad news - consistent kernel panics
Good news - found a remedy in disabling my screen saver.
I'd like to use my screen saver without getting kernel panics. I've tried erasing my drive and restoring from a back up. resetting PRAM, repaired permissions and ran Tech Tool Pro 5 (file structures and repaired permissions, everything else checked out fine).
I'm running a MacBook Pro (15-inch, Mid 2009) and am getting daily (sometimes multiple daily) kernel panics. It's been months since hardware changes (upgraded to 8Gb RAM, quality modules that work fine on other identical Macs). Today is the first day that it's happened more than once, but I hope that's not a sign of things to come... Here are Pastebin dumps of the Problem Report, System log, and Console log.Â
I haven't done any serious software updates in a while, but I did set up a Windows XP VM in Parallels Desktop, which has been running during most kernel panics. Maybe bad drivers that are incompatible or need updating? It sometimes runs for hours before a panic, so I don't think running in Safe Mode would be effective (unless I take it home overnight, which I may try). It seems that my problem is similar to another thread I found on this forum, but mine is a bit different, and I don't run any microsoft hardware (Logitech keyboard and mouse).
Info:
MacBook Pro, Mac OS X (10.6.8), 15" 2009, 2.66GHz, 8Gb RAM
Apple's site about Snow Leopard says that 64-bit *apps* under Snow Leopard will be more secure than ever due to several things:A more secure function argument-passing mechanism and the use of hardware-based execute disable for heap memory.
Memory on the system heap is marked using strengthened checksums, helping to prevent attacks that rely on corrupting memory.
Nerdly question, but does anyone know if any of these types of security enhancements require the 64-bit *kernel* (not just a given app)? My white Macbook (C2duo) is unlikely to run 64-bit unless Apple lets it in their final release (it apparently won't so far as they haven't written drivers for my lowly machine).
I've upgraded my MBP to Snow Leopard today from Leopard and I'm getting a Kernel Panic when I login as one user. Logging in as an Admin user or a new user account is fine, and I still get the Kernel Panic if I boot up in to Safe Mode. It's obviously a problem with the user account and looking at the dump log it seems to be caused trying to mount something, but I can't for the life of me track it down.
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Installed Snow Leopard (retail box) onto a last-gen Aluminum MacBook Pro (2.6Ghz model). Did a time machine backup. Put in CD and upgraded. Rebooted with no peripherals plugged in and I get a kernel panic. There's only one user on this machine so I can't see if it's an account problem. I did the same thing on both my Macbook Air and 17" MacBook Pro.
Question: Do I have to now Reinstall Leopard (fresh)
Then update Snow Leopard
Then restore from Backup?
OR
Install Leopard
Recover from time machine backup
Then install Snow Leopard
I don't have all day and really don't want to screw up the process. Is there any thing else that might say why this kernel panic is happening?
Model Name:Â MacBook ProModel Identifier:Â Â MacBookPro3,1Processor Name:Â Â Intel Core 2 DuoProcessor Speed:Â 2.4 GHzNumber Of Processors:Â 1Total Number Of Cores:2L2 Cache:Â 4 MBMemory:Â 8 GBBus Speed:800 MHzBoot ROM Version:Â MBP31.0070.B07SMC Version (system):1.18f5Â Â
I know this has been asked numerous times, but most of the answers I found were old and archived. I was wondering whether or not an update or a guide has been released which allows a successful boot into 64bit kernel? Â On a side note, I have verified my computer does have EFI64. However I know in the past that this stil didn't enable a 64bit boot.Â
Info:
MacBook Pro, Mac OS X (10.6.8)
Whether anybody got Snow Leo build 10A380 (WWDC'09) successfully running with 64-bit kernel? If 'yes' - please share your method. I've tried every approach that i know: "6+4" keys, arch=x86_64 flag specified for both nvram and com.apple.Boot.plist, lipo command against mach_kernel.
View 24 Replies View RelatedI convinced/helped a friend upgrade her 1.83Ghz CD MacBook to Snow Leopard. It has not been a smooth ride. Right off the bat there have been persistent and recurring DNS problems. She has also found that it won't shut down without her going through and quitting or force quitting open apps--skype being of particular issue. Tonight she had a kernel panic, it seems. It appears skype is the problem app, but this didn't occur before the SL upgrade. Is it coincidental or correlated?
View 2 Replies View RelatedOver the weekend I tried to backup my MacBook Pro onto an external harddrive, and when about 23Gb out of 110Gb were completed, my mac went into a kernel panic ("You need to restart your computer. hold down the power button until it turns off, then press the power button again." in four languages). Previous backups went fine. So I did a reformat of the ext. hdd, same thing: after about 20 or so Gb of backup, the msg. pops. otherwise the mac runs without problems. Did a virus check, which came up negative.
Here is the panic log:
Interval Since Last Panic Report: -6 sec
Panics Since Last Report: 1
Anonymous UUID: 7254B2B2-A9E2-40B3-9A00-06A141425C7F
Mon May 28 06:53:53 2012
panic(cpu 0 caller 0x2abf6a): Kernel trap at 0x00270ea8, type 14=page fault, registers: .....
Info:
MacBook Pro, Mac OS X (10.7.3)
I know by default that Snow Leopard starts up in 32-bit kernel but anyone here boot into the 64-bit kernel? I think to do this you'd have to hold down 6 and 4 keys while booting.
By now almost all 3rd party apps are running 64-bit and all this time I've totally forgot about the 64-bit kernel!
I've just booted up to 64-bit kernel and all apps load instantaneously!
So out of nowhere my unibody MBP (specs, etc below) locked up yesterday while I was watching a video using VLC. It stopped responding to anything so I held down the power button until it turned off. I waited about 10 minutes and turned it back on. Grey screen with spinning cog showed up for about a minute and then kernel panic. Held down power button until it turned off. Tried repeatedly - same results. Won't boot into Safe Mode - still get a kernel panic everytime. It will let me boot the machine into Target Disk Mode. It will boot from my Snow Leopard install disk where I ran Disk Utility and "repaired disk" and "repaired disk permissions" on both the drive and the volume. All the "repair disk" and "repair disk permissions" ended with messages in green type saying that the disk/permissions appear to be OK.Â
I have an external FW drive used for TM backups for the machine. A fair amount of data has been added since the last TM backup (which was less than 30 days ago) that, ideally, I'd like to not lose by resorting to restoring from a TM backup. It's not the end of the world if the last (roughly) 30 days of data/changes ends up being lost, but I'm willing to work on getting it back up and running without doing an erase and install and then restoring from a TM backup if at all possible.Â
Definitely if any other information or data is needed from me in order for anyone to assist, please let me know what it is and I'll do my best to provide it.Â
Hardware Overview:Model Name: MacBook ProModel Identifier: MacBookPro5,1Processor Name: Intel Core 2 DuoProcessor Speed: 2.66 GHzNumber of Processors: 1Total Number Of Cores: 2L2 Cache: 6 MBMemory: 4 GBBus Speed: 1.07 GHzBoot ROM Version: MBP51.007E.B06SMC Version (system): 1.41f2Â
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How to do a safe reboot on my MacBook Pro when kernel panic message appears?
Info:
MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3)
Yesterday my screen (30" Apple Cinema) started showing symptoms of graphics card failure, jagged lines across the screen. I rebooted my Mac Pro and it was gone. Then it happened again an hour later, this time the machine didn't boot, I get the Apple logo, and then it hangs up and the screen is shifted to left (I get apple logo on left side of the monitor instead of the middle) and jagged lines all over.
So the first thing I tested was using Target Disk Mode, it works. I can access my Mac Pro's internal HD's by TDM from my MacBook Pro. Then I tested single user mode, it does boot, I can't read what's written since the screen is shifted to left, but if I type (without seeing) reboot and hit enter, it reboots. So I assume the single user mode is working.
What else can I try to 100% make sure it's my graphics card that failed and everything else is ok with Mac Pro? I already ordered a graphics card replacement but I wouldn't like to be surprised if the Mac Pro still doesn't boot when the card arrives. It won't boot from Apple Startup DVD either. Same thing happens, gray logo then kernel panic with jagged lines all across the shifted screen.
Yesterday my screen (30" Apple Cinema) started showing symptoms of graphics card failure, jagged lines across the screen. I rebooted my Mac Pro and it was gone. Then it happened again an hour later, this time the machine didn't boot, I get the Apple logo, and then it hangs up and the screen is shifted to left (I get apple logo on left side of the monitor instead of the middle) and jagged lines all over.
So the first thing I tested was using Target Disk Mode, it works. I can access my Mac Pro's internal HD's by TDM from my MacBook Pro. Then I tested single user mode, it does boot, I can't read what's written since the screen is shifted to left, but if I type (without seeing) reboot and hit enter, it reboots. So I assume the single user mode is working.
What else can I try to 100% make sure it's my graphics card that failed and everything else is ok with Mac Pro? I already ordered a graphics card replacement but I wouldn't like to be surprised if the Mac Pro still doesn't boot when the card arrives.
P.S. It won't boot from Apple Startup DVD either. Same thing happens, gray logo then kernel panic with jagged lines all across the shifted screen.
I have a tower Mac Pro with Snow Leopard running on it.Unfortunately one of the software that I use doesn't have yet a Snow Leopard update. So I am thinking maybe I can install older version of Leopard on one of the internal drives (i have 3 additional internal drives), so I can boot my computer from either Leopard or Snow Leopard, depending on needs (i don't want to get rid of Snow Leopard).
I never installed OS X system before, so I am a bit scared.The internal drive is ready, I have the old Leopard on disks, what are the next steps to take?
I had a kernel panic few days ago, and there's no audio on youtube, itunes after the attack......
Info:
MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3)
My mac pro won't boot from Snow Leopard DVD. When try, Starting with the Apple screen and the spinning ball. Normal. But after 2 min. The ball stops to spin and the Computer is Freezing.
Info:
Mac Pro
Just picked up a 3.2 8 core. How do i boot 64bit mode?Â
View 4 Replies View RelatedI need your help diagnosing this early 2007 Macbook Pro running the latest version of Snow Leopard. It isn't mine, rather my sister's, so I don't know the full details of everything as I don't see her all the time. Last December, I swapped in my 160gb 5400RPM SATA drive from my late 2006 MBP into her MBP as I had just bought and installed a 500gb 7200RPM drive into my MBP. I installed a fresh copy of Snow Leopard onto her machine, patched it up, and sent her on her way.
A few weeks ago, she came to me saying she was having trouble booting into OS X and was just having trouble using her laptop in general. The hard drive wasn't making any erratic noises, so I figured the system install had corrupted itself. The problem was I wasn't able to boot to the Snow Leopard DVD. The DVD would show up at boot when holding down the Option key to show boot devices, but when clicked, it would show the Apple logo, then the "prohibitory" symbol and the fans would spin up on full blast, with no further progress.
Booting into Single User mode, I was able to run disk repair and after running it over a few times, I was told the drive was without errors, the laptop booted fine (minus the booting to Snow Leopard DVD) and I gave the MBP back to her.
Fast forward to today, she's having issues booting in to OS X again. It'll show the Apple boot logo, but the small spinning circle will freeze, and the whole laptop will come to a halt. I still can't boot to the DVD either, with the same symptoms as above. I'm sure I can boot into Single User mode, run Disk Repair, and probably be good, but I want to attack this issue at the source.
Is the hard drive I've got in her MBP going bad (I can't hear any of the erratic noises you hear when you know a drive is going bad)? What else could it be? What about the inability to boot to the Snow Leopard DVD? What is the problem and how can I fix it? Thanks, and sorry for the long winded post.
Brought snow Leopard from Apple, and got it yesterday. I installed it today, and whilst it seems faster I have a few problems. Mainly that it doesn't seem to boot into 64-bit mode, neither from an app changing it to boot into 64 bit or by pressing the 6 and 4 keys down.
Also, does anyone know why a plugin to make Quicklook have a list view for Folders won't work anymore?
I installed Snow Leopard last night and since, I have been trying to boot it into 64-bit mode. I have tried holding down the "6" and "4" keys at startup, but that did not work.
Late 2008 2.4GHz Aluminum MacBook
I set up windows xp on my imac using boot camp and then used the snow leopard disc to install drivers etc. I then tried to install a game (GTA IV) but setup.exe immediately crashed to desktop. I tried with another game (Fallout 3), same thing. Today I tried re-installing xp without installing the drivers etc from the snow leopard disc. This time, both games installed fine. But without the extras from the snow leopard disc, I can't play them.
View 7 Replies View RelatedI ran the 'Software Update' on her machine and it had several (6+) updates including the updates for the EFI bootloader; I clicked 'Okay' to reboot and apply the updates and after the 'chime' the machine hangs in the 'grey-screen' with the Apple logo and a progress indicator. After a period of a few minutes it appears the machine turns itself off (or at least the screen goes dark)
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Also understand that my wife doesn't have Applejack, DiskWarrior, or any other type of utilities installed, *sigh* nor does she know where her installation disks are... so I think I may be at a loss until I can get the machine to the local Applestore and schedule a time?
