Mac pro 2.1 64 bit kernel

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IOStorageFamily 2. IOReportFamily 31 com. Libm 1 com. Backtrace CPU 1 , Frame : Return Address 0xffffff90a2c1b0c0 : 0xffffffe 0xffffff90a2c1b : 0xffffffd6a9a 0xffffff90a2c1b : 0xfffffff 0xffffff90a2c1b : 0xffffffbe 0xffffff90a2c1b4b0 : 0xffffffb8c 0xffffff90a2c1b : 0xffffffdbc33 0xffffff90a2c1b : 0xfffffff3e96 0xffffff90a2c1ba00 : 0xffffffef 0xffffff90a2c1bc40 : 0xffffffb55 0xffffff90a2c1bd60 : 0xffffffdd90 0xffffff90a2c1bde0 : 0xffffffbf0 0xffffff90a2c1be60 : 0xffffffca 0xffffff90a2c1bf00 : 0xffffffca0be 0xffffff90a2c1bf60 : 0xfffffface1 0xffffff90a2c1bfb0 : 0xfffffff Hello there, I have the same problem since the beginning of my trials when the official El Capitan were available.

I am using the original boot. I hope that I am not loosing something more specific using the old boot. Thank you in advance and thanks Pike and the rest of the group who made this thing possible. Hi guys, same here! Random kernel panics on a Mac Pro 1. Many thanks guys for the hard work! We've already discussed why, at least initially, you probably won't want to boot into K But as Snow Leopard adoption ramps up and bit updates of existing kernel extensions become available, why might you actually want to use the bit kernel?

The first reason has to do with RAM, and not in the way you might think. Though Leopard uses a bit kernel, Macs running Leopard can contain and use far more RAM than the 4 GB limit the "bit" qualifier might seem to imply. But as RAM sizes increase, there's another concern: address space depletion—not for applications, but for the kernel itself.

64 bit Kernel boot mode and older Mac Pro

As a bit process, the kernel itself is limited to a bit i. That may not seem like a problem; after all, should the kernel really need more than 4GB of memory to do its job? But remember that part of the kernel's job is to track and manage system memory. That's 64 bytes , not kilobytes. It hardly seems like a lot. If this sounds ridiculous to you, think of how ridiculous the 8GB of RAM in the Mac I'm typing on right now would have sounded to you five years ago.

Using more than a third of the kernel's address space just to track memory is a pretty uncomfortable situation. A bit kernel, on the other hand, has a virtually unlimited kernel address space 16 exabytes. K64 is an inevitable necessity, given the rapidly increasing size of system memory.

Mac OS X 10.6 Snow Leopard: 64-bit right down to the kernel

Though you may not need it today on the desktop, it's already common for servers to have double-digit gigabytes of RAM installed. The other thing K64 has going for it is speed. The x86 instruction set architecture has had a bit of a tortured history. When designing the x bit extension of the x86 architecture, AMD took the opportunity to leave behind some of the ugliness of the past and include more modern features : more registers, new addressing modes, non- stack-based floating point capabilities , etc.

K64 reaps these benefits. Apple makes the following claims about its performance:. Focused benchmarking would bear these out, I'm sure.

But in daily use, you're unlikely to be able to attribute any particular performance boost to the kernel. Think of K64 as removing bottlenecks from the few usually server-based applications that actually do exercise these aspects of the kernel heavily. If it makes you feel better to know that your kernel is operating more efficiently, and that, were you to actually have 96GB of RAM installed, you would not risk starving the kernel of address space, and if you don't have any bit drivers that you absolutely need to use, then by all means, boot into the bit kernel.

Linux DVD images (and how-to) for bit EFI Macs (late models) |

Fixing Grub Mount the hard drive that Ubuntu was just installed on by either clicking on it in the dock or using the mount command in a terminal. Installation on a Macpro It is strongly suggested to use the Ubuntu 64 bits version AMD64 to benefit from the full installed memory. Using the 32 bits will limit the memory to less than 3 Gb. The normal installation has been working seemlessly for a MacPro3 ,1 with Hardy 8.

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  7. For This is done by selecting the Advanced options after partitioning and before the actual installation. You must specify a partition for GRUB installation, e. Ethernet Wireless Sound Firewire works out-of-the-box works, with remarks needs manual install won't work not yet documented Quick Install Guide Note: The best version of Ubuntu to use is Get a wired USB keyboard and mouse to make the install easy.

    Before you install Ubuntu, if you have OSX running it is strongly advised that you use system updates to insure that your various firmwares are up to date bluetooth,wifi,EFI.

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    In particular your EFI firmware must be the latest version. When you power on hold down the left mouse button as soon as hearing the chime sound until the CD drive opens. Drop in Ubuntu Reboot, and this time hold the "c" key down after the chime sound to boot from the CD in the drive. Boot into the live CD at the option screen. Not the install option. Since we only want to wipe the first few hundred MB of data at the beginning of the drive wait 2 minutes, then press Ctrl-C.

    The output should show how much of the drive was 'zeroed' or wiped, which gives you an indication of the transfer speed of that drive BTW.

    Before reading further: Make sure you’re in the same boat!

    Select msdos partition and press OK. If you don't do this, your new install will not boot when complete. Finally double click the install button on the desktop. Select manual partitioning when the option comes up during the install. Click OK and continue and ignore the message about no swap partition, most are better off without it. It is best to install restricted drivers for network and wifi cards last of all.