Skip to Content
avatar image
Former Member

kernel upgrade

Hi,

I would like to know the detail of upgrading a kernel. Im using AIX. Understand that the kernel patch is to be replace under /usr/sap/SYS/exe after uncar

Question :

1) Do we replace the whole folder of exe or the subfolder run ? (I understand

window is run, how about AIX ? )

2) We have to download the kernel for DB independent and dependent right ? If so, how do these 2 kernel updated in the system ? which particular folder ?

Regards

Add comment
10|10000 characters needed characters exceeded

  • Get RSS Feed

3 Answers

  • Best Answer
    avatar image
    Former Member
    Mar 29, 2007 at 12:04 PM

    Hello Lauran,

    Best practice to go ahead is:

    Step 1: Create a new folder /sapmnt/<SID>/newkernel

    Step 2: Copy all contents of /sapmnt/<SID>/exe to /sapmnt/<SID>/newkernel

    Step 3: Download the database independent & database dependent files.

    Step 4: Uncar these files in /sapmnt/<SID>/newkernel (This will overwrite old kernel files from newkernel, thus upgrading the kernel)

    Step 5: Shutdown SAP & Database (Make sure all process are stopped e.g. saposcol, Database listener, etc)

    Step 6: Rename /sapmnt/<SID>/exe to /sapmnt/<SID>/oldkernel

    Step 7: Rename /sapmnt/<SID>/newkernel to /sapmnt/<SID>/exe

    Step 8: Execute root.sh so that kernel files have right authorisation

    Step 9: Start Database & SAP system (Make sure you upgrade the kernel files on Application server as well)

    Incase, you require to revert back to old kernel, just Bring down SAP & database copy back the exe folder to newkernel & oldkernel folder to exe)

    Regards,

    Ammey Kesarkar

    <i>'Award points for useful info'</i>

    Add comment
    10|10000 characters needed characters exceeded

  • avatar image
    Former Member
    Mar 29, 2007 at 12:28 PM

    Hi Lauran

    Check the link below.Its really good doc for SAP kernal upgrade.

    http://sap.ittoolbox.com/documents/popular-q-and-a/kernel-upgrade-1649

    Reward points if usefull

    Add comment
    10|10000 characters needed characters exceeded

  • avatar image
    Former Member
    Mar 30, 2007 at 05:45 AM

    Hi All,

    Thanks for the information. Very helpful

    Point rewarded

    Thanks

    Add comment
    10|10000 characters needed characters exceeded