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11

The 64bit kernel can be installed on Debian 32bit. You can see that the amd64 kernel is available for 32bit Debian on it's package page. This can be used as an alternative to using a PAE enabled kernel to support more than 4G of total RAM. Note that 32bit binaries still can not access more than roughly 3G of RAM per process.


9

There are several gradations, since you can run a 32-bit or mixed operating system on a 64-bit-capable CPU. See 64-bit kernel, but all 32-bit ELF executable running processes, how is this? for a detailed discussion (written for x86, but most of it applies to arm as well). You can find the processor model in /proc/cpuinfo. For example: $ cat /proc/cpuinfo ...


8

All processors that support the x64 instruction set (also known as x86_64 or amd64) also support the x86 instruction set (also known as i386 or i686, which are strictly speaking specific versions of x86). The same goes for ARM A64 (the new 64-bit instruction set appearing in ARMv8) and A32 (the name for the “classic” 32-bit instruction set), for SPARC64 and ...


4

You need to create a 64bit virtual machine. The bitness of the host OS is irrelevant, it's the VM that needs to be 64bit. From the VBox website (emphasis mine): 64-bit guests VirtualBox supports 64-bit guest operating systems, even on 32-bit host operating systems, provided that the following conditions are met: You need a 64-bit processor ...


3

If something requires a library that is not present it simply will not work (as in, will not even start). There is no mystery or ambiguity to it. If the applications you mention run, then you are fine. You can check what libraries a binary needs to link with ldd. For example: > ldd /opt/VirtualBox/VirtualBox linux-vdso.so.1 => ...


3

First things first. I had setup my 32 bit system as below. /boot - /dev/sda1 / - /dev/sda2 swap - /dev/sda3 /home - /dev/sda4 If you have not setup the /home in a different partition, then you have to backup all the data and restore it. You cannot do as described in this answer. /home is in different partition So if you have /home in different ...


3

A 32-bit process can access only about 3GB. (It can be less, depending on the kernel compilation options.) It doesn't matter whether the kernel is a 32-bit or 64-bit one — that only affects the ability to run 64-bit applications. PAE is a way to allow more physical memory but doesn't change the size of the virtual memory seen by each process. That's pretty ...


2

As richard points out, armv7 variants are all 32-bit, so there is no redundant label armv7-32, etc. On a linux system, you can easily, although not truly definitively, check by examining a common executable: > which bash /bin/bash > file /bin/bash /bin/bash: ELF 32-bit LSB executable, ARM, version 1 (SYSV) ... I say "not definitively" because it is ...


2

LVM/LUKS should not be architecture-dependant whatsoever, same goes for most filesystems. So a multiboot scenario where you have both 32bit and 64bit Linux installed and they share the same VG or access each others partitions, should be entirely possible. You'll find the most dependencies in terms of software versions. For example recently a bug in the ...


2

An option that I use is to install 32-bit Firefox along side 64-bit Firefox and drop the debug version of libflashplayer.so into /usr/lib/mozilla/plugins/. Then use a 32-bit instance to do the flash debugging.


2

To answer your last question first, x86-64 CPUs (a.k.a. Intel 64, AMD64, x64...; basically any laptop/desktop 64-bit CPU you can get these days) are fully backwards-compatible with 32-bit operating systems and applications. So a 32-bit OS will work on a modern desktop. As to why you should use 64-bit instead, the 64-bit instruction set adds various features ...


2

You can use prtconf to get the bitness of the running kernel: $ prtconf -k Kernel Type: 64-bit You could also ls -l /unix or file /unix, but that's not guaranteed to be the kernel you're currently booted from. $ file /unix /unix: 64-bit XCOFF executable or object module not stripped $ ls -l /unix lrwxrwxrwx 1 root system 21 Dec 9 06:48 ...


1

There are two benefits that I can think of. Both are "minor". First, you won't have 32 bit libs installed. Some times (though it is rare) you could end up using 32 bit libs when you meant to be using 64 bit libs. This is very rare and usually only happens when you, the user, are messing with trying to get pre-compiled software running using override tricks. ...


1

After a lot more searching I think I have convinced myself that there is no simple way to get what I want. So, what did I end up doing? I installed LiME from github (https://github.com/504ensicsLabs/LiME) git clone https://github.com/504ensicsLabs/LiMe cd /LiME/src make -C /lib/modules/`uname -r`/build M=$PWD modules The above commands create the lime.ko ...


1

I am assuming that your question is about x86 processor. Here is a compromise solution, that is used on Debian 32 bit. Produce the whole system for 32 bit, but also add some extra kernels: pea-kernel is 32 bit, but can address more than 4GB ( in theory up to 64 GB ) of physical memory, but only 3GB of logical (3GB per process, 1GB is used by kernel). ...


1

Can I be reasonably certain that a 32-bit OS will still work on a modern desktop? Yes. Almost all 64-bit capable processors support both 64 bit mode or 32 bit mode. (Exceptions might be early Itaniums, IBM power CPUs etc, but nothing mainstream.) Assuming that I will not be doing anything memory intensive, is there any other reason why I should use ...


1

ia32-libs allows you to install common 32-bit programs, no more, no less. It's a collection of 32-bit libraries. It has no impact on 64-bit programs. It doesn't hurt performance, all it does is take up a bit of disk space. Newer versions of Debian and Ubuntu have made ia32-libs obsolete by allowing 32-bit packages to be installed on a 64-bit system, so you ...


1

$ /home/amnesia/myfile bash: /home/amnesia/myfile: No such file or directory $ file /home/amnesia/myfile ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared lies), for GNU/Linux 2.6.9, not stripped So myfile exists, but running it gives the message “No such file or directory”. This happens in the following circumstance: ...


1

Your issue sounds like a bug in the kernel to me. I found this bugzilla issue titled: Bug 42696 - Wrong ACPI handle is being detected for NVIDIA graphics card on Lenovo Ideapad Y470/Y570. excerpt On the Lenovo Ideapad Y470 and Lenovo Ideapad Y570, the kernel assigns the _SB.PCI0.PEG0.VGA handle to the PCI device (possibly because the _DOS method is ...


1

The only reason I know of is if you don't have a 64-bit CPU. The host OS doesn't matter, and if hardware virtualisation is not enabled (vtx in BIOS settings) you can still create the VM but it will tell you what's wrong when you try to start it.


1

Hi to resolve similar issue it helped me to install .x64 version first. It seems like yum is complaining about different version of .x64 package installed and .i686 you want to install. So sudo yum install gtk2.x86_64 sudo yum install gtk2.i686 worked for me


1

What worked for me was rpm --erase --nodeps cairo which removes the cairo package without checking any dependencies that might be violated by such an action, followed by yum install cairo which installs cairo from the configured package repositories


1

Your --enable_pcre32 configure option refers to the 32 bit option of pcre itself (can be enabled to handle 16 bit or 32 bit versions of regex - presumably for Unicode stuff?) Try building pcre with the -m32 options you used on your Apache configure.


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Debian I haven't tried yet but here some instruction to run X32-ABI on debian: https://wiki.debian.org/X32Port Arch Here a repository with many X32 packages (such as chromium, mysql): https://github.com/fantix/ArchLinux-x32


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Following the idea using awk, I ended up using: dpkg --get-selections \ # get the list | grep -v deinstall \ # throw away deselected packages | grep ':i386' \ # get the i386 arch packages | sed 's/install//g' \ # drop 'install' to get list | sed 's/:i386/:amd64/g' \ # replace i386 ...


1

If you got P4 630 775 socket, like me, you can easly run 64-bit OSes.



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