UBUNTU 8.10 x64 sees only 1.5 GB istead of 2 GB memory

Discussion in 'HOWTO-Related Questions' started by w0rt3x, Mar 9, 2009.

  1. w0rt3x

    w0rt3x New Member

    Hello, please help me on that problem, i tryed to specificate mem=2011M but with no results.
     
  2. falko

    falko Super Moderator Howtoforge Staff Moderator HowtoForge Supporter ISPConfig Developer

    What are the outputs of
    Code:
    cat /proc/meminfo
    free
    top
    ?
     
  3. w0rt3x

    w0rt3x New Member

    Thank you All this commands give me this stats Mem: 1572156k total

    All this commands give me this stats Mem: 1572156k total
     
  4. falko

    falko Super Moderator Howtoforge Staff Moderator HowtoForge Supporter ISPConfig Developer

    And you are sure you have 2GB of memory? What's in /boot/grub/menu.lst?
     
  5. w0rt3x

    w0rt3x New Member

    Thank you for reply

    I am sure i have 2 GB, in windows I could see them.
    title Xen 3.3 / Ubuntu 8.10, kernel 2.6.27.5
    root (hd0,0)
    kernel /boot/xen-3.3.gz
    module /boot/vmlinuz-2.6.27.5 root=/dev/mapper/pdc_cffhehibfd1 ro mem=2011M console=tty0
    module /boot/initrd.img-2.6.27.5

    Without mem variable the same result
    Than you.
     
  6. falko

    falko Super Moderator Howtoforge Staff Moderator HowtoForge Supporter ISPConfig Developer

    Hm, not sure what it is... :( Do you see any memory-related messages during startup (or in the
    Code:
    dmesg
    output)?
     
  7. mactor

    mactor New Member

    The "less" memory showing is because of Xen. Xen takes a chunk of memory and hides it from the system(own use). On my box with 4G of ram and no VM's started, free -m shows a total of 3770Megs.
     

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