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There is another skid mark on this topic. That is the issue of 32-bit vs. 64-bit vs. physical memory. As I understand things, 4 Gbytes of ram is 2**32 bytes. In contrast a 32-bit address space can access 2**32-1 bytes -- one less -- physical bytes. Therefore, a 32-bit distro release requires the physical address extension (PAE) kernel package to access all of the 4 Gbytes of physical ram. This applies not only to the running kernel but also
to the boot loader. A 64-bit distro release does not have these limits. Your mileage may vary.
Not exactly. 4 Gbytes of ram is 2**32 bytes and a 32-bit address space can access exactly 2**32 bytes (0 through 2**32-1 bytes inclusive). BUT, the motherboard BIOS will want some of that 32-bit address space (typically the last gigabyte) for its hardware, leaving only 3 Gbytes or so for actual addressable ram in the 32-bit address space. Any ram beyond that amount, the motherboard will bump up beyond the 32-bit address space. Therefore, if you have 4 Gbytes of physical ram, you will need to use PAE in the kernel in order to be able to see all 4 Gbytes of ram. Otherwise, you will only see the 3 Gbytes or so that the motherboard allows in the 32-bit address space. PAE is clever hand waving in the microprocessor paging module that essentially allows the microprocessor to generate a 36-bit address (64 Gbytes addressable) from the 32-bit address it is given. A 64-bit distro release does not have these limits, since it uses long mode in the microprocessor chip and that uses a 64-bit address space (17179869184 Gbytes addressable).
hey there saint i too have a thinkpad tablet trying to convert to linux any help would be an absolute godsend as i have no transport untill i finish conversion as tablet will be running the auto tune function in my car to make it run and as a media player for my sounds yours sincerely loopsta!
By the way, I failed to give due credit. The Sorcerer's Apprentice was a Disney character in the original Fantasia film (1940). The experience was so special that it was repeated in Disney's the second Fantasia (2000) film. http://www.google.com/url?sa=t&sourc...fPpQA46jputLhg
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