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3 GB memory instead of 4GB #4

Closed Nirnath closed 10 years ago

Nirnath commented 11 years ago

I have just upgraded to the newest version of RTXI (32 bit) and found that the OS is able to identify just 3 GB of RAM, although I have 4 GB. Earlier version - RTXI 1.1 was identifying 4 GB of RAM. Because of just 3 GB of the memory available, the OS now hangs frequently as in my experiments, I use 4-5 modules at a time. Can anybody suggest some solution for this ?

yapatel commented 11 years ago

What OS are you running?

Yogi

On Oct 12, 2013, at 8:20, Nirnath notifications@github.com wrote:

I have just upgraded to the newest version of RTXI (32 bit) and found that the OS is able to identify just 3 GB of RAM, although I have 4 GB. Earlier version - RTXI 1.1 was identifying 4 GB of RAM. Because of just 3 GB of the memory available, the OS now hangs frequently as in my experiments, I use 4-5 modules at a time. Can anybody suggest some solution for this ?

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Nirnath commented 11 years ago

Its Ubuntu 10.04. I have used the live CD from this site : http://www.rtxi.org/install/live-cd/

yapatel commented 11 years ago

Can you provide me the output of the following command in a terminal:

free -m

Yogi

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On Oct 12, 2013, at 12:26, Nirnath notifications@github.com wrote:

Its Ubuntu 10.04. I have used the live CD from this site : http://www.rtxi.org/install/live-cd/

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Nirnath commented 11 years ago

Following is the output for "free -m"

         total       used       free     shared    buffers     cached

Mem: 2986 625 2360 0 16 193 -/+ buffers/cache: 416 2570 Swap: 9536 0 9536

yapatel commented 11 years ago

Yogi

On Oct 12, 2013, at 12:41, Nirnath notifications@github.com wrote:

Following is the output for "free -m"

     total       used       free     shared    buffers     cached

Mem: 2986 625 2360 0 16 193 -/+ buffers/cache: 416 2570 Swap: 9536 0 9536

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yapatel commented 11 years ago

Since you have a 32-bit Ubuntu OS installed, it can't detect a full 4GB of RAM.

Try running the following, reboot, and then check your RAM availability. sudo apt-get install linux-generic-pae linux-headers-generic-pae Yogi

On Oct 12, 2013, at 12:41, Nirnath notifications@github.com wrote:

Following is the output for "free -m"

     total       used       free     shared    buffers     cached

Mem: 2986 625 2360 0 16 193 -/+ buffers/cache: 416 2570 Swap: 9536 0 9536

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Nirnath commented 11 years ago

Ok, I will try that. But with the same hardware, Ubuntu 9.1 32-bit live CD from RTXI website shows complete 4 GB of RAM.

yapatel commented 11 years ago

LiveCDs sometimes don't install all kernel modules - 10.04 is notorious for it. Installing this kernel module should allow the system to detect the full 4gb available to your system.

Yogi

On Oct 13, 2013, at 0:00, Nirnath notifications@github.com wrote:

Ok, I will try that. But with the same hardware, Ubuntu 9.1 32-bit live CD from RTXI website shows complete 4 GB of RAM.

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yapatel commented 11 years ago

Did this work out for you?

Nirnath commented 11 years ago

Sorry, I have not tested it, yet. Currently, not in town. WIll definitely inform you as soon as I do the necessary update. I hope "sudo apt-get install linux-generic-pae linux-headers-generic-pae" doesn't affect the RTXI.

Nirnath commented 10 years ago

The method suggested did not work. Finally, I installed 64 bit UBUNTU 9 RTXI from live CD and then upgraded it to the latest RTXIv1.4. It worked for me and the RTXI system is running fine.