?
Solved

Centos 64 bit only seeing 3834MB Ram

Posted on 2011-09-05
12
Medium Priority
?
348 Views
Last Modified: 2012-06-22
Hi
i have installed Centos 64 bit on Windows 2008 Hyper -V.

guest has 5012 Ram

so centos should see 5GB of ram.

but its only see 3834 mb Ram !!


some info :

free -m
             total       used       free     shared    buffers     cached
Mem:          3834         89       3745          0         13         35
-/+ buffers/cache:         40       3794
Swap:         2943          0       2943
[root@sandbox ~]#
[root@sandbox ~]# uname -a
Linux sandbox. 2.6.18-238.19.1.el5 #1 SMP Fri Jul 15 07:31:24 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux



but
when i boot the same vm with Debian live 64 bit, its see full memmory

I never seen this problem before

can any one help me with this

thanks

0
Comment
Question by:fosiul01
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
  • 6
12 Comments
 
LVL 79

Expert Comment

by:arnold
ID: 36484417
You need to insall the kernel-pae version
yum install kernel-pae

http://www.centos.org/modules/newbb/viewtopic.php?topic_id=8457
0
 
LVL 29

Author Comment

by:fosiul01
ID: 36484433
but kernel-pae for 32 bit system

its 64bit Os

please look uname-a ouput on the question..
0
 
LVL 79

Expert Comment

by:arnold
ID: 36484490
0
Are You Using the Best Web Development Editor?

The worlds of web hosting and web development are constantly evolving. Every year we see design trends change, coding standards adapt and new frameworks/CMS created. With such a quick pace of change it’s easy to get lost trying to keep up.

See if your editor made the list.

 
LVL 29

Author Comment

by:fosiul01
ID: 36484495
tryed that already ..
did not work ..

0
 
LVL 79

Expert Comment

by:arnold
ID: 36484506
cat /proc/meminfo what is being reported there?
0
 
LVL 29

Author Comment

by:fosiul01
ID: 36484512
MemTotal:      3926888 kB
MemFree:       3804900 kB
Buffers:          6680 kB
Cached:          36688 kB
SwapCached:          0 kB
Active:          55816 kB
Inactive:        27808 kB

0
 
LVL 79

Accepted Solution

by:
arnold earned 2000 total points
ID: 36484634
Do you have the same behavior if you boot the system using centos live CD?
0
 
LVL 29

Author Comment

by:fosiul01
ID: 36484645
yup

same but debian live Cd works!!!
no centos
0
 
LVL 79

Expert Comment

by:arnold
ID: 36484712
I think there is a setting for grub to reflect a larger memory alocation.
Try centos 6 liveCD and see if it too reflects the lower memory.
0
 
LVL 29

Author Comment

by:fosiul01
ID: 36484781
ok i will try with that one


just a question

is security updates on Oracle vm free ???

any idea ??
0
 
LVL 29

Author Comment

by:fosiul01
ID: 36484782
sorry oracl Linux

security updates of oracle Linux free ? any idea?
0
 
LVL 79

Expert Comment

by:arnold
ID: 36485232
I'm not sure what you mean?


0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

New Windows 7 Installations take days for Windows-Updates to show up and install. This can easily be fixed. I have finally decided to write an article because this seems to get asked several times a day lately. This Article and the Links apply to…
The recent Microsoft changes on update philosophy for Windows pre-10 and their impact on existing WSUS implementations.
This tutorial will walk an individual through the steps necessary to configure their installation of BackupExec 2012 to use network shared disk space. Verify that the path to the shared storage is valid and that data can be written to that location:…
This tutorial will walk an individual through the process of transferring the five major, necessary Active Directory Roles, commonly referred to as the FSMO roles to another domain controller. Log onto the new domain controller with a user account t…
Suggested Courses
Course of the Month14 days, 16 hours left to enroll

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question