Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: system boots into 32-bit mode; want 64-bit mode

  1. #1
    Join Date
    Sep 2008
    Beans
    8

    system boots into 32-bit mode; want 64-bit mode

    I just noticed that my pangolin performance panp4n system (driver 2.4.4)
    boots in 32-bit mode:
    $ uname -m
    i686
    instead of the 64-bit mode as I am sure it used to do.
    this is a fully up-to-date system
    $ cat /etc/lsb-release
    DISTRIB_ID=Ubuntu
    DISTRIB_RELEASE=9.10
    DISTRIB_CODENAME=karmic
    DISTRIB_DESCRIPTION="Ubuntu 9.10"

    0. What did I do wrong?
    1. how do I boot into 64-bit mode?
    2. how do I make sure that I always boot into the 64-bit mode?

    thanks

  2. #2
    Join Date
    Mar 2006
    Location
    Ohio
    Beans
    569
    Distro
    Lubuntu 13.04 Raring Ringtail

    Re: system boots into 32-bit mode; want 64-bit mode

    Quote Originally Posted by sds57 View Post
    I just noticed that my pangolin performance panp4n system (driver 2.4.4)
    boots in 32-bit mode:
    $ uname -m
    i686
    instead of the 64-bit mode as I am sure it used to do.
    this is a fully up-to-date system
    $ cat /etc/lsb-release
    DISTRIB_ID=Ubuntu
    DISTRIB_RELEASE=9.10
    DISTRIB_CODENAME=karmic
    DISTRIB_DESCRIPTION="Ubuntu 9.10"

    0. What did I do wrong?
    1. how do I boot into 64-bit mode?
    2. how do I make sure that I always boot into the 64-bit mode?

    thanks
    It boots to whatever the kernel is & the kernel is bundled with Ubuntu.
    You must have the 32 bit version of Ubuntu installed.
    The name of the 64 bit version contains "amd64".
    The name of the 32 bit version contains "i386".

    jdb

  3. #3
    Join Date
    Sep 2008
    Beans
    8

    Re: system boots into 32-bit mode; want 64-bit mode

    Quote Originally Posted by jdb View Post
    It boots to whatever the kernel is & the kernel is bundled with Ubuntu.
    You must have the 32 bit version of Ubuntu installed.
    The name of the 64 bit version contains "amd64".
    The name of the 32 bit version contains "i386".
    Yes, sure.
    So, how did it happen that my Ubuntu became i386 all of a sudden
    and how do I turn it back to amd64?
    specifically, which packages do I install?
    "aptitude search linux.*amd64" returns nothing.
    my kernel is
    linux-image-2.6.31-20-generic
    Linux kernel image for version 2.6.31 on x86/x86_64

  4. #4
    Join Date
    Feb 2008
    Location
    Colorado
    Beans
    241
    Distro
    Ubuntu UNR

    Re: system boots into 32-bit mode; want 64-bit mode

    Quote Originally Posted by sds57 View Post
    Yes, sure.
    So, how did it happen that my Ubuntu became i386 all of a sudden
    and how do I turn it back to amd64?
    specifically, which packages do I install?
    "aptitude search linux.*amd64" returns nothing.
    my kernel is
    linux-image-2.6.31-20-generic
    Linux kernel image for version 2.6.31 on x86/x86_64
    If you have 32, then can't just "upgrade" to 64 bit, you will have to download a 64 bit iso, burn it and install from there.

    And the reverse is true as well, you can't go from 64 bit to 32 bit, so you must have started there.
    Registered Linux user #489078 Ubuntu user #27106
    "Every man dies. Not every man really lives." William Wallace
    Blog! www.vrekk.us

  5. #5
    Join Date
    Sep 2008
    Beans
    8

    Re: system boots into 32-bit mode; want 64-bit mode

    Quote Originally Posted by Vrekk View Post
    If you have 32, then can't just "upgrade" to 64 bit, you will have to download a 64 bit iso, burn it and install from there.

    And the reverse is true as well, you can't go from 64 bit to 32 bit, so you must have started there.
    This is not true.
    As I said, I used to have 64-bit, but, apparently, during a major upgrade, got switched to 32-bit. I never installed from an iso, I always upgraded via internet.

  6. #6
    Join Date
    Feb 2009
    Beans
    Hidden!

    Re: system boots into 32-bit mode; want 64-bit mode

    Quote Originally Posted by sds57
    $ uname -m
    i686
    Isn't this 64 bit?

    Sorry, I am just learning this stuff and this doesn't make sense to me.
    Last edited by Eldera; March 29th, 2010 at 04:57 PM.

  7. #7
    Join Date
    Dec 2005
    Beans
    19,405

    Re: system boots into 32-bit mode; want 64-bit mode

    Quote:
    Originally Posted by Vrekk
    If you have 32, then can't just "upgrade" to 64 bit, you will have to download a 64 bit iso, burn it and install from there.

    And the reverse is true as well, you can't go from 64 bit to 32 bit, so you must have started there.


    This is not true.
    As I said, I used to have 64-bit, but, apparently, during a major upgrade, got switched to 32-bit. I never installed from an iso, I always upgraded via internet.
    What vrekk said is correct. A system cannot upgrade or downgrade from a 32-bit to a 64-bit system, nor from a 64-bit to a 32-bit system. An upgrade would only affect the packages that are being upgraded.
    Learning is not attained by chance, it must be sought for with ardor and attended to with diligence. Abigail Adams ( 1744 - 1818 ), 1780;

    My blog Poetry and More Free Ubuntu Magazine

  8. #8
    Join Date
    Dec 2005
    Beans
    19,405

    Re: system boots into 32-bit mode; want 64-bit mode

    Isn't this 64 bit?

    Sorry, I am just learning this stuff and this doesn't make sense to me.
    That is a 32-bit system. If you have a 64-bit system, you will see this: x86_64 or AMD64. The latter is technically the correct name.

    No need to apologize. Better to ask and learn, than to not ask and remain ignorant.
    Learning is not attained by chance, it must be sought for with ardor and attended to with diligence. Abigail Adams ( 1744 - 1818 ), 1780;

    My blog Poetry and More Free Ubuntu Magazine

  9. #9
    Join Date
    Sep 2008
    Beans
    8

    Re: system boots into 32-bit mode; want 64-bit mode

    Quote Originally Posted by Sef View Post
    What vrekk said is correct. A system cannot upgrade or downgrade from a 32-bit to a 64-bit system, nor from a 64-bit to a 32-bit system. An upgrade would only affect the packages that are being upgraded.
    OK. So, what exactly do I need to do to restore my system to the
    `uname -m`=x86_64
    state?
    please?

  10. #10
    Join Date
    Sep 2008
    Location
    Ohio
    Beans
    963
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: system boots into 32-bit mode; want 64-bit mode

    Quote Originally Posted by sds57 View Post
    OK. So, what exactly do I need to do to restore my system to the
    `uname -m`=x86_64
    state?
    please?
    http://releases.ubuntu.com/9.10/
    Get the "64-bit PC (AMD64) desktop CD", burn to CD, backup your data, install.

Page 1 of 2 12 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •