The processor architecture of most PCs and servers, including the 386/486/Pentium/… (IA-32) 32-bit family and the amd64 64-bit family. Most x86 processors are made by Intel or AMD.

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8k views

32-bit, 64-bit CPU op-mode on Linux

I'm confused. Running Fedora Linux, lscpu yields: Architecture: i686 CPU op-mode(s): 32-bit, 64-bit ... But when I try to install a 64-bit program (Chrome) I get error like: ...
113
votes
4answers
63k views

What do the flags in /proc/cpuinfo mean?

How can I tell whether my processor has a particular feature? (64-bit instruction set, hardware-assisted virtualization, cryptographic accelerators, etc.) I know that the file /proc/cpuinfo contains ...
18
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4answers
20k views

How do I know that my CPU supports 64bit operating systems under Linux?

How can I find out that my CPU supports 64bit operating systems under Linux, e.g.: Ubuntu, Fedora?
26
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2answers
3k views

Is it possible to compile a full Linux system with Intel's compiler instead of GCC?

Perhaps this is a stupid idea? Maybe there are some compatibility issues? I have the impression that for Intel-based systems, the Intel compiler would potentially do a better job than GCC. Perhaps ...
10
votes
1answer
6k views

Load Linux bzImage in QEMU?

I compiled a Linux by doing make menuconfig then make and now I have compiled the most recent version of Linux. How can I load the kernel into QEMU?
53
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8answers
155k views

How to determine Linux kernel architecture?

uname -m gives i686 and uname -m gives i686 i386 output in Red Hat Enterprise Linux Server release 5.4 (Tikanga) machine. I need to install Oracle Database 10g Release 2 on that machine. So, how can I ...
11
votes
2answers
7k views

Why does my system show only 3.2 GiB of RAM when I definitely have 4.0 GiB

I have 2x2 GiB sticks of RAM installed. Running memtest86 from the grub boot menu confirms this.. memtest86 reports no errors. However every which way I check my available memory in a running ...
1
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2answers
2k views

ld.so.preload doesn't differ x86_32 and x86_64

— It's known you can run x86_32 programms with x86_64 kernel if it was compiled with support for that. But dynamic linker doesn't provide any way to define a separate set of preload libraries for 32-...
9
votes
1answer
3k views

How can I determine if my processor is 64 or 32 bit? [duplicate]

Possible Duplicate: How do I know that my CPU supports 64bit operating systems under Linux? I am running Debian Squeeze, how can I determine whether my processor is 64 or 32-bit? I'm thinking ...
9
votes
1answer
2k views

User Kernel split in 64bit Linux

What is the default user/kernel split in the 64bit linux ? I read Documentation/x86_64/mm.txt (which someone pointed out), but I could not make out. Can somebody provide a direct answer (something ...
4
votes
2answers
2k views

SSE2 requirement for John The Ripper

I have a kinda problem about john in Kali x86. To make long story short, I can't allow to run john under Kali Linux 2.0 installed into LV, but as I remember I was able to run in older Kali and older ...