Can I boot into 32 bit mode on a 64 bit. If so how will this affect my 8gb ram usage?

It's basically all in the title. I was just wondering what differences there would be if I booted in 32 bit mode on my early 2011 macbook pro.

when you press the power button
hold down keys 6 and 4 (together)
till you see the apple logo and the spinning wheel.
that will enable 64-Kernel and extensions.
but honestly i think wouldnt benefit you at all.
unless your a developer and want that enable to test out your own applications/kexts.
Good Luck!

Similar Messages

Can I have iTunes music on my SSD and an external drive? How will this affect syncing to iOS devices?

I don't have space to keep my entire iTunes library on my SSD. Currently I have my iTunes library split as follows:
SSD: Contains a subset of music, apps, books, etc. New items usually get added here.
External HD: Contains all of my music and iTunes media (including apps... so many apps). It's usually missing the most recent items added, due to the fact I don't plug it in so often.
I ran into a problem maintaining these two libraries earlier while syncing my iPhone. When I tried to sync the iPhone with the SSD library, it would delete apps off of my phone because they weren't contained in the iTunes library there, even though I had the same base .itl file for both the SSD and the external libraries.
What I want to do is set it up so that I maintain a core of music on my SSD and the stuff I don't listen to as often on my external hard drive. I also want to keep all the space hogs (movies, apps, etc) on the external as well. However, I want this to appear as one seamless iTunes library and I DON'T EVER WANT ANYTHING DELETED FROM MY PHONE WHEN I SYNC IT. I want to be able to sync my phone without worrying that apps will be deleted and I'll have to restore them from iCloud and reset all the settings, sign in, etc. Right now I am backing up to iCloud, but my understanding is that iTunes will still delete things from my phone if they are not available in the library.
My question: How do I accomplish this? I have a lot of metadata in my iTunes library that I don't want to lose (playcounts, ratings, etc).
I currently have this:   SSD: .itl file pointing to music on the SSD, a mixture of iTunes media (some that I want easily accessible, some I don't)
                                  External drive: .itl file pointing to music on the external drive, all of my iTunes media (except for anything I may have added to the SSD)
I think I need this:       SSD: .itl file pointing to music on the SSD and the external, music that I listen to often
                                 External drive: music that I don't listen to often, things that take up a lot of space
My thought process is that I will need to somehow move music from the external to the SSD while maintaining the pointers so that iTunes knows where they are. For this I have unchecked "Keep iTunes Media Folder Organized" and "Copy Files to iTunes Media Folder When Adding To Library," and to maintain the pointers and move the songs, I'm thinking of using Doug's Applescripts for "Relocate Selected:" http://dougscripts.com/itunes/scripts/ss.php?sp=relocateselected
Once I have the songs split across these drives, I'm going to copy the .itl file from the external to the SSD and boot it up to see if it works.
Two things: 1.) Will this approach work? Can I maintain my library across separate drives this way and have it be seamless? I understand I won't be able to access the media on my external hard drive when it is not plugged in (duh), but...
2.) Will it affect syncing? When my external isn't plugged in, will iTunes try and delete things from my iPhone? It should still be able to "see" them, it just won't be able to access them. Will I have to turn off syncing apps while syncing with my external device unplugged?
Thanks very much for any help and insight! It is greatly appreciated as I deal with limited storage space and an expanding iTunes library.

This is all just a partial answer since details will depend upon how you want to do it.
Post by Zevoneer: iPod media recovery options - https://discussions.apple.com/message/11624224 - this is an older post and many of the links are also for old posts, so bear this in mind when reading them.
Commercial software utility for transferring songs from i-device to Mac - http://www.fadingred.com/senuti/
http://support.apple.com/kb/HT1848 - just media purchased from iTunes Store
You'll need to get it all onto one iTunes collection on your Mac Pro, then sync the devices to that. iTunes only lets you transfer purchases from a device, otherwise you have to use third party software.
I guess you could also look into getting iTunes Match.

Can't boot into 64 bit

I've tried the holiding down 6 4 keys during boot, I've done the terminal comand to set the startup drive to automatically boot into 64 bit mode... nothing works.
At the end of my rope. Thoughts?
Hardware Overview:
Model Name:          MacBook
Model Identifier:          MacBook4,1
Processor Name:          Intel Core 2 Duo
Processor Speed:          2.1 GHz
Number of Processors:          1
Total Number of Cores:          2
L2 Cache:          3 MB
Memory:          4.5 GB
Bus Speed:          800 MHz
Boot ROM Version:          MB41.00C1.B00
SMC Version (system):          1.31f1
Serial Number (system):          ***************
Hardware UUID:          CA090417-06DE-52F7-8BAB-C0CA928EF8DE
Sudden Motion Sensor:
State:          Enabled
System Software Overview:
System Version:          Mac OS X 10.7.3 (11D50b)
Kernel Version:          Darwin 11.3.0
Boot Volume:          Macintosh HD
Boot Mode:          Normal
Computer Name:          *********** MacBook
User Name:          ***************************
Secure Virtual Memory:          Enabled
64-bit Kernel and Extensions:          No
Time since boot:          14 minutes

Ya, it's too bad. I've known for a while that when this laptop reaches its end I'll be going to Windows 7 and a new laptop at half the price.
I'm a little sad because I didn't know the end was so close, but if I can't even run the new OS coming out, well, that's pretty much it.
It's not dead yet, probably still has a year or so left but still. Been with Apple since 2006 and it's been an interesting ride.

Do not upgrade to an IvyBridge processor if you need to boot into 32-bit mode with Lion

I recently upgraded to a MBP running the Ivybridge processor and tried to boot into 32-bit mode. Although it did boot after a short period (3-5 mins) it totally crashed a locked up. This was precursored by a graphics error and then the mouse cursor could be moved but nothing else could be done and it was only solved by a hard shut down (holding down the power button). Previously I had been running a MBP with the Sandybridge architecture and this booted fine into 32-bit mode and worked without a problem.
I spent a lot of time on the phone with Apple care who said they'd not had any reports of this issue and we went right though my system until they said there was nothing else they could do and I should try a re-install of Lion. I did this onto another hard-drive, booted into it and managed to get the machine to crash again... leading me to understand that it's nothing to do with my setup.
Thinking it might be an issue with my firmware on the mac today I visited an Apple store and tried booting 5 MacBook Pro's and a MacBook Air - all running IvyBridge - into 32-bit mode and managed to cause the same crash on all of them. If the machine is just booted an left with finder it didn't seem to want to crash but when I opened programs, mainly mac mail, it didn't take too much longer for the crash to occur.
If there are any Apple engineer reading this could you try and reproduce the issue and look at fixing this please as a lot of people still use 32-bit and if I'd known that the IvyBridge processors weren't going to work in 32-bit mode I would have stayed with the Sandybridge MBPs.
Many Thanks,
Adam Peters,

That is a pain then. Pretty much all of the OS included applications (finder, Mail, iTunes, Safari,...) are all fully 64-bit programs now (since Lion) so I can see where launching them when booted into 32-bit mode could cause stability issues.
If you boot into 32-bit mode and just run the Tascam software without launching anything else, will it work?
Was it alright in 10.6? And if so, how about keeping 10.6 in a virtual machine or on a separate disc or partition?

Can Mac mini boot into 64-bit kernel

http://macperformanceguide.com/SnowLeopard-64bit.html says:
To determine if your Mac has 32-bit or 64-bit firmware, copy/paste the following command into Terminal:
ioreg -l -p IODeviceTree | grep firmware-abi
...output:
| | "firmware-abi" = <EFI64>
As shown above, the firmware-abi has the value EFI64, indicating that my Mac Pro is 64-bit capable. If it reads EFI32, then your Mac cannot be booted into a 64-bit kernel.
...well, my Mac mini displays that EFI64 64-bit info, but when booting with the "64" keys down it nevertheless uses the 32-bit kernel.
So can the Mac mini boot into 64-bit kernel?

What you are missing is that Apple has written into the boot ROM for certain Macs which meet the criteria to not be able to boot with the 64-bit kernel. The Mac mini is not allowed to boot into 64-bit mode by Apple. There is a list of non-pro Macs hard coded into the EFI boot firmware that tells it not to allow these Macs to boot into 64-bit mode. The Mac mini is on the list! Try as you may the Mac mini will not do it without a hack.
If you google this issue you can find a hack to rewrite the boot firmware and allow the mini to boot into 64-bit mode. It can be dangerous to your mini if you make a mistake!
Here is one hack;
http://www.osxbook.com/blog/2009/08/31/is-your-machine-good-enough-for-snow-leop ard-k64/
Dah•veed

Can't boot into my windows pro 64 bit dvd to do clean install

I am trying to do a clean reinstall of Windows 7 Professional 64 bit (Brazilian Portuguese) I keep getting a request to select a cd-rom type 1 or 2. Neither works.
I have researched this here and on Google. All I find are references to Mac installs and changing the bios settings.
My drives are not set to AHCI - I have boot from CD/DVD first in the boot order. I did the original install of windows 7 64 bit to this same equipment and configuration with this same official windows disk without any problems. I recently began having
problems with the system after almost two years of use - efforts to repair were not only unsuccessful they left the system almost unusable. I am running the OS on a separate partition from my data.
I was planning on booting to the Windows disk and wiping the C: partiton and reinstalling but I am being prevented by a message saying that i need to select a cd-rom boot type 1 or 2. Neither works - it just goes on to boot to the present damaged OS on my
computer. I have tried typing "3" at the message - also didn't work. While I have a backup of my D: drive data I would rather not lose it and have to try to recover that as well.
I would appreciate any help - I find it really strange that the same disk I used to install the system won't work now.

This may or may not be a BIOS related issue, I am only a user - but the Windows installation disk/system is certainly a MAJOR player in this problem. I booted to UBCD and deleted the c: drive to get rid of the old windows install (leaving the 100mb"system"
partition) and tried the boot again. Same problem with the Win 7 64 bit DVD. Except that when I entered "1" and "enter" it a "windows repair" window opened that appeared to be triggered from the 100mb "system" partition.
I shut down and, out of curiosity, I inserted the The Win 7 32 bit DVD and it booted. I cancelled the install and booted the UBCD and deleted the 100mb "system" partition and resized the c: partition and booted the 64 bit install disk again. This
time, when the boot asked for "1 or 2", I entered "1" and it booted and began the install. On the first reset it asked for "1 or 2", I entered "1" and it asked to "enter" if I wanted to boot from the cd/dvd
drive. I believe that I used "esc" and it booted from the hard drive and completed the install. Only the Windows install DVD creates this problem other bootable disks I have don't do this.
Since my original install was from the same disk to a new Hard Drive I didn't have any problem installing. My problems began with the need to reinstall, which is a VERY common problem with Windows. Once I found the workaround, which did not involve the BIOS
but "fooling" the Windows install/system on my official retail copy of Windows, I was able to reinstall.
Since I am using a very common, high end, if old, Intel board and processor I can't believe that others don't encounter these problems and I think that it begs the question to say that the problem is Intel related and to go to them for help.
Anyway, I do appreciate your taking the time to review my problem and trying to help. I have been as detailed as I could above in the hope that this will help any others who are encountering this problem. I would add that I am using Brazilian Portuguese
install disk and I suppose that this could be a solution only for similar disks. From what I have seen on this forum and the internet, it seems to be more generalized.
Thank-you again

Can't boot properly in UEFI mode

Hi!
After enabling "windows 8 feature" and booting in uefi only mode, no boot device is detected anymore. The efi shell comes up after the bios has started and I can't boot into windows. I tried a clear cmos but it didn't work. I have a Z87-GD65 (latest 1.11 or 1.1B bios) and my sata devices are a crucial mx100 ssd (with windows 8.1 64-bit), western digital black hdd and asus dvd reader. I'd like to be able to boot in uefi normally. Thanks for your help!

I think I've found topic for you
https://forum-en.msi.com/index.php?topic=250729.0;topicseen
It's about notebook but installation process is actually the same

EFI update tu support booting into 64 bit OS

Hello,
my mac (see signature) does not support booting into 64 bit in Snow Leopard. I also have troubles to install any 64 bit Windows.
The tool: http://www.ahatfullofsky.comuv.com/English/Programs/SMS/SMS.html says:
64 bit processor, 32 bit EFI, 32 bit kernel boot mode, 32 bit kernel
and its technically possible to boot into 64 bit kernel mode but it is not recommended by Apple.
It is possible to get a 64 bit EFI update to solve it?
thanks

Hi,
try this
http://www.ahatfullofsky.comuv.com/English/Programs/SMS/SMS.html
It seems that your model is in the list of supported models that can boot the 64 bit kernel.
I had the same issue with my macbook pro with identifier MacBookPro4,1 and booting with 64 bit kernel solved it.
I hope you can solve your problem!
Sorry for my bad English :-D

A late 2007 Mac Pro (2,1) no longer boots into 64-bit Snow Leopard

In Snow Leopard 10.6.7, my late 2007 Mac Pro (2,1/3.0 GHz/Dual Quad-Core Intel Xeon) no longer seems to be booting into 64-bit mode. I've tried holding down the 6 and 4 keys during startup and even used a Terminal sudo command to force the machine to always boot into 64-bit mode. No matter what I try, an About This Mac>More Info>Software check only reports the following:
     64-bit Kernel and Extensions: No
Before I upgraded from Leopard 10.5 to Snow Leopard 10.6, I carefully researched this, and this Mac Pro model specifically was listed by Apple as being capable of 64-bit booting — meaning that it would utilize at least some extra memory. At the time, under OS 10.5 and early versions of 10.6, when I used this Terminal command...
     ioreg -l -p IODeviceTree | grep firmware-abi
...my Mac Pro 2,1 returned this response:
     "firmware-abi" = <"EFI64">
As a result of my tests and research, I upgraded the installed SDRAM from 4MB to the theoretical maximum Apple indicated this model could support (16MB) so that Adobe Photoshop 12 (CS 5) would fully utilize extra installed memory under Snow Leopard. While using the first versions of 10.6 Snow Leopard, the machine worked fine in 64-bit mode. Now, in the wake of the 10.6.6 or the 10.6.7 update (I didn't notice which), I find that this model no longer even reports itself as being 64-bit capable, though it once did.
Now, the aforementioned Terminal query returns this response:
      "firmware-abi" = <"EFI32">
Also, the Library>Preferences folder does even not contain a file called "com.apple.boot.plist," which some owners have reported editing to force 64-bit booting.
The thing is, I spent a fair amount of money upgrading this machine to the maximum amount of SDRAM supported. I purchased it because it was advertised as being 64-bit capable and I upgraded it because Apple originally reported it as being a 64-bit model. Now, I'm not sure if the extra memory I added is being fully utilized, though Photoshop does report seeing 15547MB of available memory.
Have any other owners of these second-generation Intel Mac Pro's encountered this? Does anyone know what's going on? Am I doing something wrong when checking for the 64-bit installation or architecture? Is Snow Leopard 10.6.7 mis-reporting the architecture for this model? Or did Apple silently withdraw 64-bit support for this machine in a recent OS update?

Hatter: Thanks for the feedback and links. Well, as described in one of the threads you linked to, the document below reinforces your assertion that only Mac Pro's 3,1 or later (early 2008) support 64-bit booting in Snow Leopard:
http://support.apple.com/kb/HT3770
However, if you asked me in court, I would swear on a stack of Bibles that sometime in the past, I read an Apple document indicating that the Mac Pro 2,1 supported 64-bit booting and I really thought I recalled booting this particular machine into 64-bit mode under early versions of Snow Leopard.
I guess I'm mistaken. Certainly, this issue can be confusing. When I read them out loud to myself, even perfectly-written, accurate explanations on the subject can sound like a circular, non-sensical George Bush rationalization being delivered by comic Will Ferrell. I must not be correctly recalling the details of booting into 64-bit mode with this machine. And I guess that since Photoshop has its own memory management scheme, and I only have 16 gigabytes of SDRAM installed anyway, it doesn't matter that much. Furthermore, in one of your links, Jason Snell of Macworld writes:
"...If you’re running a Mac powered by an Intel Core 2 Duo processor or an Intel Xeon processor, your Mac is 64-bit capable. And Snow Leopard runs 64-bit-capable applications in 64-bit mode regardless of whether it’s booting into a 64-bit or 32-bit kernel. In fact, the only big advantage of booting into a 64-bit kernel would be the ability to use more than 32 gigabytes of RAM..."

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?
Thanks,
Scott

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

How do I mount an external Firewire HD when booting into single user mode?

Hi,
How can I mount an external Firewire Harddisk from the Darwin Console, once I have booted into single user mode?
I'm trying to make a backup of all my files and then re-install my iMac G5 since it doesn't start the GUI anymore and I haven't gotten any responses to my question here: http://discussions.apple.com/thread.jspa?threadID=1104762&tstart=0
Thanks,
Torsten

ok, I executed the following commands:
/sbin/fsck -fy
/usr/libexec/registermach_bootstrapservers /etc/mach_init.d
autodiskmount
There were two messages:
UniNEnet: Ethernet address 00:14:51:32:19:b8
and
Aug 29 20:55:29 launchd: server 2e3b in bootstrap 1103 uid 0: "/usr/sbin/lookupd"[16]: exited abnormally: Hangup
I don't know whether this has anything to do with the commands I entered.
And since I don't know what the volume name for the external Firewire HD is, I typed
ls -l /Volumes
but the only volume that is being listed there is my iMac's internal HD.
What should I do next?
Thx!

Can't boot into anything after EasyBCD's "Write MBR"

After upgrading my windows 8.1 install to windows 10 about a week ago (week ago), I decided that I no longer wanted the Windows/Ubuntu dual boot I had setup. So, in an attempt to delete GRUB and set the bootloader back to the windows bootloader, I downloaded EasyBCD and fiddled with it a bit before finding the "Write MBR" option. I figured that would allow me to boot directly into windows, or at least delete Ubuntu's GRUB Bootloader, so I could use one of my many windows install DVD's to set the bootloader to a windows one. Unfortunately, I'm an idiot, and after doing that, I can't boot into anything. I've tried everything I could think of or find on Google to get it to boot into absolutely ANYTHING. I've tried boot into every one of the boot options, including the main boot menu, but none of them load. instead, it shows me a loading screen that displays some mobo info as if it were loading a boot option I selected, but it hangs there. Maybe it was just taking its sweet little time right? Wrong! I let it sit for hours, still nothin'. HP has a "solution" where you hold the windows key + B for one second as you start up the pc, and it should start a bios recovery. Feeling hopeless, I tried it, hoping that it would do SOMETHING. Of course, it didn't boot into that either. Just a black screen. Finally, I learned that sometimes problems like this could be cause by hardware issues, and a lot of the times its the hard drive. I highly doubted that it was a hardware issue seeing as I bought this PC late last year (around November or December of 2014) but I removed the hard drive just in case and started my computer. Same result. FML. Can someone, anyone, help this poor idiot get his baby up and running again? I don't have the money or the confidence in their abilities to give it to Geek Squad or anyone else for that matter and let them have a go at it, so i'm depending on the internet ((

but if my PC's bootloader or something related is messed up, can the neosmart forums actually help?not trying to be rude or anything, i'm genuinely curious. you see, i cant really load anything, including any recovery disks or USB's, which is why i was hoping that there would be some sort of HP utility that could help me restore my PC back to its previous state. i'll still ask the neosmart forums though. i'm pretty desperate to fix my PC at this point!

Can't boot into Windows 8.1 partition after apple store repair

Can't boot into Windows 8.1 partition after apple store repair
I went to the apple store about a week ago to get my screen fixed, and when I get it back I don't have an option to boot into my windows partition. The bootcamp partition is still there, but I can't boot into it. I can still see all of the files on the drive. When I try to boot into windows from the startup disc setting I get "no bootable device — insert boot disk and press any key” on a black screen. I went in for a dead pixel, and the guy at the genius bar ran something on my computer and went into disk utility application. I’m not sure what he was doing, but obviously that’s what messed up my windows partition. How can I be able to boot back into windows? Here's what disk utility looks like on my computer.

Here's the output
00000000 eb 52 90 4e 54 46 53 20 20 20 20 00 02 08 00 00 |.R.NTFS .....|
00000010 00 00 00 00 00 f8 00 00 3f 00 ff 00 00 b0 0e 2b |........?......+|
00000020 00 00 00 00 80 00 80 00 ff bf 2e 0f 00 00 00 00 |................|
00000030 00 00 0c 00 00 00 00 00 02 00 00 00 00 00 00 00 |................|
00000040 f6 00 00 00 01 00 00 00 05 92 d3 74 c4 d3 74 aa |...........t..t.|
00000050 00 00 00 00 fa 33 c0 8e d0 bc 00 7c fb 68 c0 07 |.....3.....|.h..|
00000060 1f 1e 68 66 00 cb 88 16 0e 00 66 81 3e 03 00 4e |..hf......f.>..N|
00000070 54 46 53 75 15 b4 41 bb aa 55 cd 13 72 0c 81 fb |TFSu..A..U..r...|
00000080 55 aa 75 06 f7 c1 01 00 75 03 e9 dd 00 1e 83 ec |U.u.....u.......|
00000090 18 68 1a 00 b4 48 8a 16 0e 00 8b f4 16 1f cd 13 |.h...H..........|
000000a0 9f 83 c4 18 9e 58 1f 72 e1 3b 06 0b 00 75 db a3 |.....X.r.;...u..|
000000b0 0f 00 c1 2e 0f 00 04 1e 5a 33 db b9 00 20 2b c8 |........Z3... +.|
000000c0 66 ff 06 11 00 03 16 0f 00 8e c2 ff 06 16 00 e8 |f...............|
000000d0 4b 00 2b c8 77 ef b8 00 bb cd 1a 66 23 c0 75 2d |K.+.w......f#.u-|
000000e0 66 81 fb 54 43 50 41 75 24 81 f9 02 01 72 1e 16 |f..TCPAu$....r..|
000000f0 68 07 bb 16 68 52 11 16 68 09 00 66 53 66 53 66 |h...hR..h..fSfSf|
00000100 55 16 16 16 68 b8 01 66 61 0e 07 cd 1a 33 c0 bf |U...h..fa....3..|
00000110 0a 13 b9 f6 0c fc f3 aa e9 fe 01 90 90 66 60 1e |.............f`.|
00000120 06 66 a1 11 00 66 03 06 1c 00 1e 66 68 00 00 00 |.f...f.....fh...|
00000130 00 66 50 06 53 68 01 00 68 10 00 b4 42 8a 16 0e |.fP.Sh..h...B...|
00000140 00 16 1f 8b f4 cd 13 66 59 5b 5a 66 59 66 59 1f |.......fY[ZfYfY.|
00000150 0f 82 16 00 66 ff 06 11 00 03 16 0f 00 8e c2 ff |....f...........|
00000160 0e 16 00 75 bc 07 1f 66 61 c3 a1 f6 01 e8 09 00 |...u...fa.......|
00000170 a1 fa 01 e8 03 00 f4 eb fd 8b f0 ac 3c 00 74 09 |............<.t.|
00000180 b4 0e bb 07 00 cd 10 eb f2 c3 0d 0a 41 20 64 69 |............A di|
00000190 73 6b 20 72 65 61 64 20 65 72 72 6f 72 20 6f 63 |sk read error oc|
000001a0 63 75 72 72 65 64 00 0d 0a 42 4f 4f 54 4d 47 52 |curred...BOOTMGR|
000001b0 20 69 73 20 63 6f 6d 70 72 65 73 73 65 64 00 0d | is compressed..|
000001c0 0a 50 72 65 73 73 20 43 74 72 6c 2b 41 6c 74 2b |.Press Ctrl+Alt+|
000001d0 44 65 6c 20 74 6f 20 72 65 73 74 61 72 74 0d 0a |Del to restart..|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 8a 01 a7 01 bf 01 00 00 55 aa |..............U.|
00000200
Here's a better screenshot.

Can I boot into a PC laptop on an iMac using Bootcamp through a eSATA to Thunderbolt connection?

Can I boot into a PC laptop on an iMac using Bootcamp through a eSATA to Thunderbolt connection? Work forces you to use their computers, but it would be nice to use an iMac and extra displays while at home.

Set up a VNC connection between the computers.
(51819)

Can't boot in Single User Mode or zap PRAM on iMac G5

I want to boot into Single User Mode in order to run Applejack to "clean" the system before applying Apple's latest security patches. So I hold down Cmd-S at start-up, but it has no effect; the computer boots normally into the Tiger GUI. Thinking that zapping the PRAM might help, I restarted while holding down Cmd-Opt-P-R. Same result: normal startup with no zap. I tried resetting the power management circuit by unplugging the iMac and depressing the power button. No effect.
Apart from the inability to do special boots, the system seems to be running just fine. Any ideas?
iMac G5 Mac OS X (10.4.8) 1.5 GB RAM

Ben F-
Not guessing yet. You did not provide what steps you have taken thus far and now I know.
I am thinking then that you have somehow set up firmware password protection.
At least the things that you describe are disabled if a password is set.
Luck-
-DaddyPaycheck

Can I boot into 32 bit mode on a 64 bit. If so how will this affect my 8gb ram usage?

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