I have a q about Fedora amd memory

[eshlomi]

Hi,

I have a question, I have Fedora Core 8. Its x32. (NOT 64 !!!).
I have 2GB on the Dell T3400. I want to add memory.
I want to knew, is there a limit for the total amount of memory that I can place in?
Is it 4, 8, 16, 32 GB?

Thanks,

[reed9]

Short answer 4 GB.
The 4GB Windows Memory Limit: What does it really mean? - Brian Madden - BrianMadden.com
Here's an explanation (principle is the same despite it being windows specific.)

To use more, you need a PAE enabled kernel, or use a 64 bit distro. I believe Fedora 11 uses a PAE kernel by default.
knurd: Fedora 11, kernel-PAE, and what it means for your x86-32 system

Fedora 8 had reached end of life and is no longer supported, so you might want to upgrade anyway.

[eshlomi]

Maybe this will sound stupid, but I will ask it any way,

If I will change to FC-11, and use the PAE kernel on the main Server, I will compile an application, will it run on another PC with FC-11 with no PAE or I wll need to install PAE on it? (the other unit will have 2GB only).

Thanks,

[reed9]

The technical aspects of compiling software is not something I know too much about.

I can tell you in general, I think it would be difficult to compile software on one system and try to install it on another using the normal compilation process. You would probably want to create an rpm package instead. Otherwise I would recommend building the software on each machine separately.

The different kernels should only matter if you're building something that needs to be compiled against the kernel, like a kernel module.

Ideally of course, you should see if you can find an already built package for the software.

[HROAdmin26]

Maybe this will sound stupid, but I will ask it any way,

If I will change to FC-11, and use the PAE kernel on the main Server, I will compile an application, will it run on another PC with FC-11 with no PAE or I wll need to install PAE on it? (the other unit will have 2GB only).

Thanks,

PAE is something supported by the CPU/motherboard (in hardware.) If the hardware has PAE, then the kernel must also be compiled for PAE support. Only if both requirements are met is PAE used.

PAE does not change the max memory a single process can address (3GB) in 32 bit Linux. PAE allows the OS to address larger amounts of memory - which would only help if you have multiple processes using large chunks of memory.

You can Google for more information on PAE.

[eshlomi]

This question is not related to this thread but extends an earlier thread I posted.

I have 2 Servers, Serv1 and Serv2. my users log into Serv2, and get their home directories from Serv1, Serv2 '/home' folder is mounted to Serv1 '/home' directory.

I added a new physical hard drive to Serv2, and I what to move the /home from Serv1 to the new HD on Serv2.

in the replay to my original post I was suggested to rsync. is this the best option?
more then that, Is there a tool that can build an installation cd from an existing running machine? I want to 'duplicate' Serv1 to another PC with a diffrent HW (else I could have used Norton ghost ....).

10x

[HROAdmin26]

This question is not related to this thread but extends an earlier thread I posted.

I have 2 Servers, Serv1 and Serv2. my users log into Serv2, and get their home directories from Serv1, Serv2 '/home' folder is mounted to Serv1 '/home' directory.

I added a new physical hard drive to Serv2, and I what to move the /home from Serv1 to the new HD on Serv2.

in the replay to my original post I was suggested to rsync. is this the best option?
more then that, Is there a tool that can build an installation cd from an existing running machine? I want to 'duplicate' Serv1 to another PC with a diffrent HW (else I could have used Norton ghost ....).

10x

One issue, one thread.