sap kernel upgrade steps
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SAP Kernal upgrade on Linux Step by Step
I am doing SAP Kernel upgrade on Net weaver 7.3 version.
Login 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, there go to Software DownloadsSAP Software Download
Center My companys 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 thelatest version (N) and always better to go for N-1 version
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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 DownloadsSAP Software Download Center My companys 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 DownloadsSAP Software Download Center My companys 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.
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I am downloading above two SAR files using download manager.
Login 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
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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
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Login as sidadm
Stop the SAP System
stopsap
Stop saposcolsaposcol -k
Login as root
Go to the current kernel directory
cd /usr/sap/SID/DVE*/exe
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Copy all extracted support packages into this folder
cp -pr / SID_NewKernal_120_24052012/* /usr/sap/SID/DVE*/exe/*
Go tCopy back the original file saproot.sh into this folder.
cd /usr/sap/SID/DVE*/exe
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login as sidadm
Start the saposcol service
saposcol
Start the SAP system
startsap
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