32 bit OS & 4 GB or GiB ram?
location: ubuntuforums.com - date: March 18, 2009
I've spent nearly an hour reviewing articles & forums but I haven't found a clear & consistent answer to this:
If I buy ram sold to me as 4x1GB sticks will it all be used (somehow) in a 32-bit OS?
I've mostly seen: yes, it's all available to the computer; no, you only get ~ 3.2 GB; no you get less than 4 GB because devices like the video card use some of it.
I'm fine with the video card using some of the ram, leaving with 3.x GB for applications etc, because it's still used productively. (I assume that the same overhead would be subtracted if I had 2 or 3 GB & the video card takes care of mapping its own onboard ram, right?)
I thought it might be a GB Gib conversion issue, but a calculator told me 4.096 GB (10^n) = 3.8147 GB (2^n) which doesn't account for the ~ 3.2 GB figure I see everywhere.
32 bit OS, using nonaddressable RAM as RAMdisk?
location: ubuntuforums.com - date: August 29, 2009
Is it possible to have say, 8gb of RAM installed and be able to use the ~4.5-5 gb of unusable RAM as a RAMdisk or does the operating system have to be able to address it to use it, even as a RAMdisk?
I suppose if the OS had to access it you could enable PAE couldn't you? In PAE the applications still can't use more than the 32 bit limitation unless they are coded for PAE but the system could at least use it as a RAMdisk for temporary files (opening encrypted documents, photoshop, swap partition, Windows paging file or anything else that would benefit from using a RAMdisk).
I know how to set one up but don't know if I should go ahead and order more RAM. I have another 1GB on the way anyway but if I had more I could use it as a RAMdisk in my 32 bit operating systems and use it normally in my 64 bit operating systems.
Also, what are some other good uses for a RAMdisk?
CentOS 6.2 (32 bit) with 4 GB physical ram, reports 3.36GB
location: linuxquestions.com - date: July 9, 2012
Just installed CentOS 6.2 (32 bit) on a PC with 4GB ram but it only recognizes 3.36GB. Now I read about PAE which is in older CentOS versions enabling the system to use more physical RAM.
The question is how do I make the installation recognize and utilize the entire 4GB?
dmidecode shows 4GB
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 4 GB
Error Information Handle: Not Provided
Number Of Devices: 4
[root# cat /etc/redhat-release
CentOS release 6.2 (Final)
[root# uname -a
Linux *** 2.6.32-220.23.1.el6.i686 #1 SMP Mon Jun 18 16:56:21 BST 2012 i686 i686 i386 GNU/Linux
Run app build in 32 bit os on 64bit OS [Ubuntu] bash: no such file or directory, C++, Qt
location: linuxexchange.com - date: October 1, 2013
Im running 64 bit OS (Ubuntu 13.04). On my VirtualBox machine I have a Linux Mint 15 32 bit. I build my Qt app on Linux Mint 32 bit and now want to run it on my base OS, installed on my hard drive. But when I want to do this, bash says:
./app no such file or directory
I know for sure that app is in a given directory, and is executable (did chmod u+x app).
Is it possible to run 32 bit Qt app on 64 bit OS?
After installing this: sudo apt-get install ia32-libs I got a new error:
./app: error while loading shared libraries: libQt5Widgets.so.5: cannot open shared object file: No such file or directory
but I have Qt installed on my 64 bit OS!
Heres what I did (on a machine where I compiled app - 32 bit os):
and it gave me:
linux-gate.so.1 => (0xb7775000)
libcrypto.so.1.0.0 => /lib/i386-linux-gnu/libcrypto.so.1.0.0 (0xb75b0000)
libQt5Widgets.so.5 => /usr/lib/i386-linux-gnu/libQt5Widgets.so.5 (0xb6fa2000)
libQt5Gui.so.5 => /usr/lib/i386
Do Docker support 32 bit ubuntu(12.04) or suse OS in future?
location: linuxexchange.com - date: January 1, 1970
We have some applications deployed in 32bit OS of Ubuntu(12.04) and Suse. And applications have some dependencies on 32bit OS and cannot migrate to 64 bit.
I am planning to use Docker for deployment but current it does not support 32 bit.
So i want to know, whether docker is planning to support 32 bit OS in future and when??
If docker is not supporting 32 bit OS in future then please suggest alternate solution for my problem.
How to check if OS is 32 Bit OS or 64 Bit
location: linuxexchange.com - date: January 1, 1970
Is it possible to check if computer is 32 bit or 64 using vb.net code?
I just want to display the result in a message.
How to install 32 bit glibc 2.9 or later on 64 bit Ubuntu 12.04
location: linuxquestions.com - date: June 27, 2012
I have installated 64 bit Ubuntu 12.04. Installing the software I need to test and I get the following error:
* Checking kernel version (2.6.27 or later required)...
* Checking for glibc...
This product requires the GNU C Runtime Library (glibc) version 2.9 or later. Your system must be upgraded before installation can proceed.
I tried the following that I find on Google:
sudo apt-get install ia32-libsls
Nothing is installed.
sudo apt-get install *.i686
Nothing is installed.
apt-get install libc6-i686
"Package libc6-i686 is not available, but is referred to by another package. This may mean that the package is missing, has been obsolete, or is only available from another source E: Package 'libc6-i686' has no installation candidate.
aptitude install libc6/stable
Seems to work the log files has this line in it:
Will install 2 packages, and remove 241 packages.
When I tried to re-install the software to test I still get the same
32 bit OS and 4GB memory limit
location: linuxquestions.com - date: February 26, 2009
The max amount of addressable memory for a 32 bit OS is 4GB. Does this 4GB also includes the swap space I might have allocated?
Lets say, I am running a 32bit version of Linux on a machine with 4GB of RAM. And I allocated another 4GB in swap. Can the OS use all that is available from the RAM and AS WELL AS the swap?
why ubuntu.com recommends a 32 bit OS?
location: ubuntuforums.com - date: January 14, 2013
1. If you go to http://www.ubuntu.com/download/desktop , 32bit OS is flaged by "recommended"? why? a 32 bit ubuntu is better than a 64 bit?
I know a 32 bit OS works on a big variety machines, but as you know, most CPUs that have been made in the last decade and earlier years, are 64 bit!
2. however, I have a 64 bit machine, which one is better for my PC? a 64 bit (recommended) or a 32bit?
more details are here:
00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 03)
00:01.0 PCI bridge: Intel Corporation 4 Series Chipset PCI Express Root Port (rev 03)
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 01)
00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #1 (rev 01)
00:1d.1 USB controller: Intel
32 Bit OS VS 64 Bit OS
location: ubuntuforums.com - date: August 4, 2012
I have a system with 4 GB of RAM, 80 GB HDD, ASUS motherboard, etc. I'm wondering whether to put the 32 bit or 64 bit version of Ubuntu on it. I'm thinking that the 64 bit version would be better because it would take advantage of the 4 GB of RAM, yes? I thought that 64 bit was unstable, so I'm a little hesistant to install it. If I install the 32 bit version, it would use PAE (Physical Address Extension), right? I don't know much about how PAE works, but I read an article that said Linux doesn't like using PAE. Is that true? Could someone explain to me how PAE works in my case and what would be the best version, 32 or 64 bit, to install on my system? Thank you.
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