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I am doing SAP Kernel upgrade on Net weaver 7.3 version.

Log in to sap system and click on system status button will show the below screen. You can your current Kernel patch lever with your OS and Data base versions.

My current versions:

Kernel release 720

Current version 70

Database name MaxDB 7.7

Operating system Linux 2.6

  

I logged into service market place,

go to Software Downloads SAP Software Download Center  My company’s Application components  Complementary Software  SAP KERNEL 64-Bit Unicode  SAP KERNEL 7.20 64-BIT UNICODE

Here you need to select your OS and Database, than it displays below screen. Please check the latest version (N) and always better to go for N-1 version

As per my selection criteria 201 is the latest one, I am going for (N-1) 120 version

Please select the SAPEXEDB_120_10007264 this file

To Software Downloads SAP Software Download Center  My company’s Application components  Complementary Software  SAP KERNEL 64-Bit Unicode  SAP KERNEL 7.20 64-BIT UNICODE MAXDB  SAPEXEDB_120_10007264.SAR file and add to download basket

Please select the SAPEXE_120_10007264 this file

to Software Downloads SAP Software Download Center  My company’s Application components  Complementary Software  SAP KERNEL 64-Bit Unicode  SAP KERNEL 7.20 64-BIT UNICODE Database Independent  SAPEXE_120_10007264.SAR file and add to download basket

For kernel upgrade this below two SAR file required. Please download these two files.  

     

 

I am downloading  above two SAR files using download manager.

Log in as SIDADM, Make new backup directory

mkdir SID_Kernalbackup_24052012

Create latest kernel backup

cp -pr /usr/sap/SID/DVE*/exe/* / SID_Kernalbackup_24052012

Compare the original kernel and the backup

du -sk /usr/sap/SID/DVE*/exe

du -sk /uar/sap/SID/SID_Kernalbackup_24052012

Make new shadow kernel directory,

mkdir SID_NewKernal_120_24052012

Copy the new downloaded kernel files into SID_NewKernal_120_24052012 directory

Unpack the new downloaded kernel in folder / SID_NewKernal_120_24052012

SAPCAR -xvf SAPEXE_120-10007264.SAR

 

 

SAPCAR -xvf SAPEXEDB_120-10007262.SAR

  Log in as sidadm

Stop the SAP System

stopsap

Stop saposcol

saposcol -k

 

Log in as root

Go to the current kernel directory

cd /usr/sap/SID/DVE*/exe

Copy all extracted support packages into this folder

cp -pr / SID_NewKernal_120_24052012/* /usr/sap/SID/DVE*/exe/*

 

Go to Copy back the original file saproot.sh into this folder.

cd /usr/sap/SID/DVE*/exe

log in as sidadm

Start the saposcol service

saposcol

Start the SAP system

startsap

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