With a standard el5 on a new Dell server, it may be necessary to install the Dell Raid driver, otherwise the OMSA always reports an error and hardware monitoring is therefore obsolete:
Previously, the megaraid_sys package was now called mptlinux
For this we need the following packages in advance:
# yum install gcc kernel-devel
Now the driver stuff:
# yum install dkms mptlinux
That should have built the new module, better test it:
# modinfo mptsas
# dkms status
After a kernel update it may be necessary to build the driver for the new version:
# dkms build -m mptlinux -v 4.00.38.02
# dkms install -m mptlinux -v 4.00.38.02
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