CentOS 5 :: How To Tell Difference Between 32bit And 64bit When Kernel Is Missing
Jul 14, 2010
I have a system with a missing or damaged kernel and I need to reinstall some software to fix it (see this thread for reference removed xen and kernel is gone). I feel fairly certain I can fix my system with the info in that thread however I don't know if this was a 32bit or 64bit system. How can I tell after using the dvd and linux rescue or does it even matter?
Now, I'm ready to run my program, and my code is based on 32bit version. So I run the program on Ubuntu 9.10 32bit. And I got running time for 48s. But that's a bit slower than I expected; the program has bunch of File I/O processing but the result(48s) just doesn't make sense compared to given initial data set. So I just run the same program and same initial data set on Ubuntu 9.10 64bit ver. Then, bang!! it took 1.4s to finish the job.
Do you have any thoughts what kind of fact might make this significant difference? The differences b/w those two OS are "32 vs 64" and 32bit version has Java SDK, Eclipse, Apache2, Mysql, PHP, CGI, and python. We-server service is running but because I'm not really running web server. Did the result come from these background programs?
-- I tested it on the both OS in the same situation as possible as I can. (reboot->test)
-- BTW 64bit one doesn't have those programs. I just installed on my external hard drive, so it's literary PURE one. (32bit one also in the same HDD)
I recently installed debian squeeze 32bit on a second partition of my amd athlon 64 X2 dual core machine.Currently it is using linux-image-2.6.32-trunk-686 kernel.But linux-image-2.6.32-trunk-amd64 is available.on the repository.Is it a 64bit kernel or 32bit kernel optimized for amd64 architecture?
I have been running F14 as a 32-bit system (original m/b was 32-bit). Now the system is on a 64-bit dual-core processor board and I'd like to change from the 32-bit kernel to 64-bit. I downloaded a 64-bit kernel (kernel-2.6.35.6-45.fc14.86_64.rpm) and attempted to install it. It won't install and Package Installer returns a message of the sort that says this file "has incompatible architecture.
Valid architectures are ['athlon', 'i686', 'i586', 'i486'....]". My processor is an Athlon 64 x2. Is it possible to do what I want to do (I only want the kernel at the moment)? Is there some Fedora file I need to modify to allow the system to install the 64-bit kernel for this m/b? Do I need another file (or files) installed before I install the kernel?
Use python as example, I have 64bit python 2.4.3 yet I can't found rpm for 32bit one so I try to build it.Use default make or make --enable-readline is ok, python make cannot use CFLAGS, can use OPT and LDFLAGS to add -m32, yetit seems can only search for 64bit lib, or else crush.[Moderator edit: Moved from CentOS-4 to CentOS-5 forum.]
I have got an Notebook whose CPU is 64bit.The Notebook has an CentOS installation. Now I want to find out if this CentOS is 32bit or 64bit.How can I check this?
uname -a
gives something with ....i686 i686 i386...."
What does that mean?Does that refer to the hardware or the CentOS OS? An 32bit CentOS can be installed on a 64bit hardware!I am interested in the OS capability not of the hardware!
(Second Try) I installed CentOS 5.5 from CDs 32 bit, everything works fine. I then re-install, but this time 64 bit, everything else is the same, I use all of the same options. This time though it sees the network card, and allows me to configure it and activate it. It will not connect outside of it's self, IE it can ping it's self, but nothing else. Go back to 32 bit, and zero problems, try 64 again, no network. Each time I do full installs with partition formatting etc. In case it makes hill-o-beans difference, Intel P4, 2.66 Ghz. 2.0 GB RAM MSi Motherboard.
I have installed centos 5 64 bit in my machine but all the dependencies like php, httpd, glibc, gcc, gd, openssl and others are 32 bit, I need them to be updated to 64 bit.
I've been trying to compile a small program on my 64bit Centos 5.3 but I need to compile it in 32bit mode. I've tried editing the make file and changing CC=gcc to CC='gcc -m32" and that doesn't work. I have also tried to use "make CC='gcc -m32' and that doesn't work either. It wont compile. Do I need to install something with yum to get 32bit compiler to work?
I have searched the whole google but did not find anything. I am trying to install a game server using hldsupdatetool.bin which can be found here, [URL]. Unfortunately it can only run on 32bit Operating Systems. I need it to run on 64bit. What do I need to install? Please be specific since I am really new to linux. Please tell me what I exactly have to type in the command prompt.
Setting up Install Process Resolving Dependencies ---> Running transaction check ---> Package perl.i386 4:5.8.8-18.el5_3.1 set to be updated ---> Package perl.x86_64 4:5.8.8-27.el5 set to be updated .....
I have a server with 12 Gig or ram in it (has per bios detection). Free and meminfo agree. [root@virtualHost ~]# free total used free shared buffers cached Mem: 7726080 794136 6931944 0 50036 391236 -/+ buffers/cache: 352864 7373216 Swap: 8385888 0 8385888
In my /proc/cpuinfo I can see pae in the flags. None of my domUs are going to need more than 3 GB of ram but I was wondering what is the REAL ammount of RAM accessible to the system. If I run 4 domU at the same time. Around 7 GB or 12 GB?
What is the difference between kernels which come from the update repository and the plus repository ? Often the same version comes from both, but one says centosplus at the end the other, from the update repository, does not.
While i am using yum update am getting an error: Error: Missing Dependency: libgpod.so.0()(64bit) is needed by package rhythmbox-0.11.6-4.el5.x86_64 (installed).
I just ordered my new laptop (DLL XPS15) and I'm wondering on whether install a 32 or 64 bit version, I don't know if there's really a big difference between each one of them, I've always used a 32 bit version.
This is probably a dumb question but I can't find out whether I have a 32 or 64 bit machine. Here's uname -a [Linux Flow 2.6.34.7-56.fc13.i686 #1 SMP Wed Sep 15 03:33:58 UTC 2010 i686 i686 i386 GNU/Linux]
I have a 5 year desktop with 1.5GB RAM and the following specifications. AMD Athlon D400 Single Channel 64bit. Would it be advisable to install the latest version of Ubuntu "Lucid Lynx" 64bit on this pc?
I have downloaded the 64bit version of Ubuntu 10.04. I am currently using 8.10 32bit and I want to clean install 10.04 64bit version. However the one thing that is putting me off is that I have heard if your PC has 1GB of RAM or less then 64bit won't run very good because it uses more RAM than 32bit. (my PC has 1GB) So the question is: Does 64bit use more RAM than 32bit?
I currently have Ubuntu running in 32 bit with pae but I now want to switch to 64 bit. all of my hardware supports it. Is there an easer way to switch without needing to install Ubuntu all over again? It's such a haste to copy all of my files and reinstall programs and there settings manually.
Im installing a fresh copy of F12 on a laptop.What I would like to know is if I install the 64bit version will all none 64bit apps install and run.I have normal apps but do needs the lotus notes clientadobe apps, crossover linux, vmware etc.
I've been using the 64bit version of fedora since release 10. I want to know what exactly makes the diffrence between the 32bit and the 64bit releases. I am having some troubles recently regarding some drivers and other issues in my fedora 12 and I was thinking of moving to the 32bit one,