Hi RAC-DBAs,
installing the Oracle Clusterware CRS 10.2 on SLES10 with its multipath devices can be tricky.
Background: The tool formatting the OCR disks, clsfmt.bin, is buggy concerning multipath / device mapper devices and you will see root.sh fail and clsfmt spit out errors like:
clsfmt: Failure trying to resize OCR file from ... bytes to ... bytes
clsfmt: Received unexpected error 4 from skgfifi
Oracle Patch Set 10.2.0.3 or one-off patch 4679769 from Oracle Metalink fixes this, but during install with runInstaller you are bound to the install kit 10.2.0.1 AND you cannot apply a patch before a product is fully installed. Subsequently, the root.sh fails and you have to clean up the mess manually and format the disks manually. I did not want do do so, I solved this problem in this way:
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