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  1. #1
    Join Date
    Jun 2008
    Posts
    100

    Exclamation We need to solve PAE Kernel issue , FAST !

    Hi,
    We have update a new dedicated server to a Quad-System
    using 8GB RAM , but because we are using the same boot disk
    to avoid reinstall of OS and backups, the system only sees 3GB RAM
    as its using 32bit Kernel.

    We have request the hosting company to try to install PAE Kernel,
    so it could access more RAM and they did, but when trying to boot the machine,
    it does not boot, and because they donīt do any management,
    its up to us to see what can be wrong (compatible issues, etc).

    So we need someone experience with Linux, to trace this issue and try to
    put the PAE Kernel to work. Paying will be done thru Paypal
    at the end of the job, and our quote for this is $10.

    IM if you are interest,

    Thank you

  2. #2
    Join Date
    Mar 2004
    Location
    Odessa, Ukraine
    Posts
    605
    You need setup 64-bit OS

  3. #3
    Join Date
    Jul 2008
    Location
    Brno, Czech Republic
    Posts
    19
    for pae to work you don't need a 64-bit OS, pae was introduced to break 4G ram limit in 32 bit OS

    for your problem, most probably a kernel module used by the old kernel was not installed for pae one

    for 10$ I don't think you will find someone to fix you problem
    www.non-a.net Linux/AIX System Management services

  4. #4
    Join Date
    Jun 2008
    Posts
    100
    Quote Originally Posted by felicianmv View Post
    for your problem, most probably a kernel module used by the old kernel was not installed for pae one
    Thanks for your reply,
    any tip how to trace the kernel module and fix that out?

  5. #5
    Join Date
    Jul 2008
    Location
    Brno, Czech Republic
    Posts
    19
    you can compare modules from /lib/modules/<kernel-version>

    also, you can try to boot pae kernel in single user or using different kernel arguments
    www.non-a.net Linux/AIX System Management services

  6. #6
    Join Date
    Jun 2008
    Posts
    100
    Quote Originally Posted by felicianmv View Post
    you can compare modules from /lib/modules/<kernel-version>
    also, you can try to boot pae kernel in single user or using different kernel arguments
    Can you point me a guide for doing that?
    We just tried to boot again, but server does not come online.

  7. #7
    Join Date
    Dec 2005
    Posts
    3,077
    There is probably going to be a hardware compatability issue with the PAE kernel you are using.

    You will need to either compile & load into the ramdisk any necesarry drivers for your Disk/RAID controller for this PAE kernel, or you could build a new kernel from source which includes newer drivers.

    If you can increase your budget to something reasonable, someone will be able to help you. There are no easy guides you can just follow for this kind of issue, each server is different.

  8. #8
    Join Date
    Jul 2008
    Location
    Brno, Czech Republic
    Posts
    19
    some command line options for kernel: http://www.kernel.org/pub/linux/kern...n_pdf/ch09.pdf

    most useful - debug (combine with panic=0), root, init (init=/bin/sh will boot in single user)
    www.non-a.net Linux/AIX System Management services

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