RE: need help for linux!!

Kedar,
*  First check if Linux recognizes all of the 128MB memory 
   that you have on your PC. Sometimes, Linux only recognizes 64MB- 
   you have to manually tell it to use the remaining memory. 
     To do this, first type:
          cat /proc/meminfo (or type the command 'free')
     This should give you an output like this:
            total:    used:    free:  shared: buffers:  cached:
      Mem:  97865728 95547392  2318336 35315712  3588096 27623424
      Swap: 136208384 40484864 95723520
      MemTotal:     95572 kB
      MemFree:       2264 kB
      MemShared:    34488 kB
      Buffers:       3504 kB
      Cached:       26976 kB
      BigTotal:         0 kB
      BigFree:          0 kB
      SwapTotal:   133016 kB
      SwapFree:     93480 kB

    If the Total memory is not 128MB then  (Assuming you use lilo (or
BootMagic) to 
        boot your system)
    1. Edit file /etc/lilo.conf, add a line like this 
     just before your first "image=" statement:
         append="mem=128M" 
    2. Rerun lilo from the command prompt:
        lilo
    3. Reboot.
       Then check  /proc/meminfo and see if linux recognizes the full
128 MB. 

    Important:
    1. Before you do anything of this sort, make a linux bootable
diskette.
 
http://www.redhat.com/support/manuals/RHL-6.0-Manual/install-guide/manua
l/doc103.html#sB.1

    2. On some PCs, the full memory may not be available for linux. 
     In your BIOS setup, see if you have any devices that share 
     the memory- typically, the graphics card could be using up 
     4 to 8MB of your memory. If so, instead of 
         append="mem=128M"
       you will need to use
         append="mem=124M" or append="mem=120M" 
       depending on how much memory is being shared.
       This is very important. If you specify too much memory for 
       Linux, it will certainly crash.
        Here is a quote from Linus Torvalds on usage of the `mem='
parameter.

           ``The  kernel  will accept any `mem=xx' parameter you give
           it, and if it turns out that you lied to it, it will crash
           horribly  sooner  or  later.   The parameter indicates the
           highest addressable RAM address, so `mem=0x1000000'  means
           you  have 16MB of memory, for example.  For a 96MB machine
           this would be `mem=0x6000000'.

* The number of users you have created does not matter- as long they 
are not logged in simultaneously.
* Another thing that you could do is to check if you have enough swap
space.
>From the redhat manual:
     A swap partition -- Swap partitions are used to support virtual
     memory. If your computer has 16 MB of RAM or less, you must create
     a swap partition. Even if you have more memory, a swap partition
     is still recommended. The minimum size of your swap partition
     should be equal to your computer's RAM, or 16 MB (whichever is
     larger). The largest useable swap partition is roughly 127 MB, so
     making a swap partition larger than that will result in wasted
     space. Note, however, that you can create and use more than one
     swap partition if your system requires more than 127MB of swap. 

* df or du gives you the disk space.


Hope this helps.

Ravi


-----Original Message-----
From: kedar@darya.nio.org [mailto:kedar@darya.nio.org]
Sent: Tuesday, September 26, 2000 12:51 AM
To: nukkad-list@mumbai-central.com
Subject: FW: need help for linux!!


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hi nukkies,

c if u can help me out in this problem

I have a PIII 550Mhz machine with 128MB RAM and 12 GB hard disk of which
6GB is partitioned for each Windows 98 and Redhat Linux 6.2,

But my problem is I find my Linux running very slowly as compared to
windows though i have lot of data and other softwares(office 2000,Visual
Studio 6 etc)on Windows.

I have installed only Staroffice on linux from PC Quest CD,but even
before
installing Staroffice it was slow.

I have created three users besides root.

does that make any difference in speed.

also, I want to Know how to find a Disk Space in Linux.

regards,