Linux - NewbieThis Linux forum is for members that are new to Linux.
Just starting out and have a question?
If it is not in the man pages or the how-to's this is the place!
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month. Click here for more info.
Hi
i have installed fedora 14 32 bit my machine have 8 gb RAM and fedora14 shows on 3 gb i have checked in /proc/meminfo it shows 3 gb only same machine on fedora 11 shows complete 8 gb ...?
what is the issue ??
If you want to use all 8GB, you either need the PAE kernel, or a 64-bit OS.
Correct.
Quote:
If you just installed the OS, as your post implies, I would recommend going back and re-installing the 64-bit version of Fedora.
Having already installed 32-bit, switching to kernel-PAE is easy. Switching to 64-bit is not easy.
The OP may have had a good reason for selecting 32-bit. A switch to 64-bit might be a good idea, or it might be a bad idea, or it might be significant extra effort making no significant difference. So I'll stick with my suggestion of installing the kernel-PAE package as the direct answer to the OP's situation. Re-installing with 64-bit Linux is obviously and alternative, but I don't see it as the direct answer to the situation.
Distribution: RHEL, CentOS, Debian, Oracle Solaris 10
Posts: 1,420
Rep:
If your processor is PAE capable then fedora automatically download and install a PAE enabled kernel when it detects more than 4GB of RAM (Just like Ubuntu). But if for some reason it doesn't install the PAE kernel, then it's not hard to install it and get rid of the "plain" i686 kernel.
The OP may have had a good reason for selecting 32-bit. A switch to 64-bit might be a good idea, or it might be a bad idea, or it might be significant extra effort making no significant difference. So I'll stick with my suggestion of installing the kernel-PAE package as the direct answer to the OP's situation. Re-installing with 64-bit Linux is obviously and alternative, but I don't see it as the direct answer to the situation.
There are two reasons somebody would need more than 3GB
1) They are using a large program that consumes more than 3GB
2) They are using many programs, which collectively consume more than 3GB
The PAE kernel only solves #2, a full 64-bit OS solves both. If #1 is even a remote possibility somewhere in the distant future, he would be MUCH better served installing the 64-bit OS now, rather than hitting a brick wall later on when the system has been fully customized and set up for his needs. Reinstalling the OS at this point (assuming he just installed the 32-bit) would only take a couple of hours, compared to days of reinstalling software, reconfiguring preferences, etc. later on if/when he decides he actually needs to use more than 3GB in a single process.
Telling him that all he needs to do is install the PAE kernel and he's set, is only telling him half of the story, and might be doing him a disservice later on down the road. The best answer is to give him the full story and let him decide on his own which path he wants to take.
Last edited by suicidaleggroll; 03-21-2012 at 02:48 PM.
There are two reasons somebody would need more than 3GB
1) They are using a large program that consumes more than 3GB
2) They are using many programs, which collectively consume more than 3GB
Before the OP answers if he needs more than 3GB for a single task or for the system in general I take the freedom to somewhat modify your post.
Quote:
There are two reasons somebody would have more than 3GB
1) It was cheap and/or came with a pre-built machine (not unusual nowadays)
2) The person actually needs that amount of RAM for whatever purpose
Ergo: Arguing if a PAE kernel or a 64 bit system would be better is simply pointless without asking the OP what the use case of that machine actually is.
Having said that:
@dev@linuxquestion#, two questions:
1. Why have you chosen to install the unsupported Fedora 14 (the only currently supported versions are 15 and 16)?
2. What is the intended use for that machine?
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.