Preparation:
Go to transaction code SM51, Check Current SAP Kernel version and patch level.
Kernel Dump download:
Kernel Download, Backup & Transfer Process follow the steps.
1. Download the necessary Kernel Patch from http://support.sap.com
Downloads -> SAP Support Packages and Patchs ->SAP Kernel-> choose particular version like SAP KERNEL 721.
The packages should be similar like this, Database Independent, SAPEXE_XX.SAR – Kernel Part 1 and SAPEXEDB_XX.SAR – Kernel Part II.
2. Create a new directory folder and transfer the two downloaded packages to created directory.
mkdir /newkernel
3. Backup the old kernel to other location
cp -pR /sapmnt/SID/exe/* /oldkernel
Hint:
Default location for kernel is in /sapmnt/
Kernel Upgrade Process steps
1. Login to the system as
- SAPCAR -xvf SAPEXE_XX.SAR
- SAPCAR -xvf SAPEXEDB_.SAR
2. Stop the SAP system and saposcol (login
- stopsap R3
- saposcol -k
Hint :
Before stopping the SAP system, please make sure the logged user, batch jobs are alerted.
3. Login to the system as root and copy all the extracted kernel packages into /sapmnt//exe
- cd /new_kernel
- cp -pR * /sapmnt/SID/exe/
4. After all the packages copied, run the following commands
- cd /sapmnt/SID/exe/
- /saproot.sh SID
5. Switch user to adm and start the SAP system and saposcol as well.
- saposcol
- startsap R3
After Upgrade Check the Kernel Versions:
1. Go to transaction code SM51, click on Release Notes. Check the latest kernel number.
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